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Reference Guide
Color Image Scanner
All rights reserved. No part of this publication may be reproduced, stored in a retrieval
system, or transmitted in any form or by any means, electronic, mechanical, photocopying,
recording, or otherwise, without the prior written permission of SEIKO EPSON
CORPORATION. No patent liability is assumed with respect to the use of the information
contained herein. Neither is any liability assumed for damages resulting from the use of the
information contained herein.
Neither SEIKO EPSON CORPORATION nor its affiliates shall be liable to the purchaser of
this product or third parties for damages, losses, costs, or expenses incurred by the purchaser
or third parties as a result of: accident, misuse, or abuse of this product or unauthorized
modifications, repairs, or alterations to this product.
SEIKO EPSON CORPORATION and its affiliates shall not be liable for any damages or
problems arising from the use of any options or any consumable products other than those
designated as Original EPSON Products or EPSON Approved Products by SEIKO EPSON
CORPORATION.
EPSON is a registered trademark of SEIKO EPSON CORPORATION.
IBM and PS/2 are registered trademarks of International Business Machines Corporation.
Macintosh is a registered trademark of Apple Computer, Inc.
Microsoft and Windows are registered trademarks of Microsoft Corporation in the United
States of America and other countries.
Presto! is a trademark of NewSoft Technology Corporation.
General Notice: Other product names used herein are for identification purposes only and may be
trademarks of their respective companies.
Copyright © 2000 by SEIKO EPSON CORPORATION, Nagano, Japan.
2
Contents 3
Contents
Introduction
About This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Finding More Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Chapter 1 Optimizing Scanning
Recommended Adjustment Order . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Adjusting Brightness and Contrast. . . . . . . . . . . . . . . . . . . . . . . . .1-2
Making the Highlight setting . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Making the Shadow setting . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Making the Gamma setting. . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
Applying a preset tone curve . . . . . . . . . . . . . . . . . . . . . . . . .1-5
Adjusting Color . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
Making the Gray Balance Intensity setting. . . . . . . . . . . . . .1-7
Making the Saturation setting . . . . . . . . . . . . . . . . . . . . . . . .1-8
Making tone curve settings. . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
Improving Text Scanning for OCR . . . . . . . . . . . . . . . . . . . . . . . . .1-11
If you still have problems.... . . . . . . . . . . . . . . . . . . . . . . . . . .1-12
Potential text recognition problems. . . . . . . . . . . . . . . . . . . . 1-12
Chapter 2 Understanding EPSON TWAIN Pro Features
Using the EPSON TWAIN Pro Main Dialog Box . . . . . . . . . . . . .2-1
Selecting a Document Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Selecting an Image Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Image Type list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Image Type button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Selecting a Destination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
Destination list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
Destination button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-11
Setting the Resolution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-13
Specifying Source and Target Image Sizes . . . . . . . . . . . . . . . . . .2-13
4 Contents
Using the Settings Dialog Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Making Configuration Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Preview menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Color menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Densitometer menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
Other menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24
Using the Scan Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
Using the Preview Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
Using the Preview Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
Using the Densitometer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28
Using the Preview Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
Zoom button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
Return button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30
Restore Zoom button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30
Using Marquees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30
Making and modifying marquees . . . . . . . . . . . . . . . . . . . . 2-30
Using the Marquee tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
Delete button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
Duplicate button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-34
Auto Locate button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-34
Marquee number indicator . . . . . . . . . . . . . . . . . . . . . . . . . . 2-35
All button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-35
Using the Adjust Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-36
Auto Exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37
Image Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38
Tone Correction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-40
Color Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-42
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-43
Focus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-43
Chapter 3 Setting Up the Start Button
Overview of Start Button Features. . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Making Windows Millennium Edition, 98, and 2000 Settings . 3-2
Making PageManager Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Contents 5
Chapter 4 Options
Using the Transparency Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Unpacking the Transparency Unit. . . . . . . . . . . . . . . . . . . . .4-1
Removing the shipping screw . . . . . . . . . . . . . . . . . . . . . . . .4-2
Installing the Transparency Unit . . . . . . . . . . . . . . . . . . . . . .4-3
Preparing transparencies for scanning . . . . . . . . . . . . . . . . .4-5
Scanning normal reflective documents. . . . . . . . . . . . . . . . .4-16
Using the Automatic Document Feeder. . . . . . . . . . . . . . . . . . . . .4-18
Unpacking the Automatic Document Feeder. . . . . . . . . . . .4-19
Installing the Automatic Document Feeder . . . . . . . . . . . . .4-19
Loading documents into the Automatic
Document Feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-22
Loading documents manually . . . . . . . . . . . . . . . . . . . . . . . .4-24
Scanning from the Automatic Document Feeder . . . . . . . .4-24
Document specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-26
Using the IEEE 1394 Scanner I/F Card . . . . . . . . . . . . . . . . . . . . .4-28
System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-29
Installing the IEEE 1394 Scanner I/F Card in
your scanner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-29
Understanding IEEE 1394 connections . . . . . . . . . . . . . . . . .4-31
Connecting the scanner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-31
Chapter 5 Maintenance and Troubleshooting
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
Cleaning the scanner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
Replacing the fluorescent lamp . . . . . . . . . . . . . . . . . . . . . . .5-2
Transporting the scanner and the Transparency Unit . . . .5-2
Problems and Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4
Error indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4
Scanner operation problems. . . . . . . . . . . . . . . . . . . . . . . . . .5-6
Quality problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
Software setup problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-19
Recovering from Scanner Software Installation Problems in
Windows 98, 2000, and Millennium Edition. . . . . . . . . . . . . . .5-20
Sizing Up Your System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-24
RAM and hard disk size . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-24
6 Contents
Accelerator boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24
Video cards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25
Monitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25
File compression software . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25
Contacting Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26
Appendix A Technical Specifications
Scanning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Electrical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Standards and Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4
SCSI Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5
USB Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6
Option Interface Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7
Initialization Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7
Transparency Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
Automatic Document Feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9
IEEE 1394 Scanner I/F Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10
Glossary
Index
Introduction 1
Introduction
About This Guide
The information in this guide is divided into five chapters, with
an appendix, a glossary, and an index provided for your
reference.
Chapter 1 explains how to optimize the quality of scanned
images and how to improve optical character recognition
when scanning text.
Chapter 2 provides a complete description of EPSON TWAIN
Pro and TWAIN Pro Network features. Refer to this chapter
when making detailed scanning settings.
Chapter 3 explains how to modify the operation of your
scanner’s
Start button.
Chapter 4 explains how to install and use the options available
for your scanner.
Chapter 5 contains information on maintaining your scanner
and troubleshooting scanner problems. If your software does
not operate properly or scanned images are not what you
expect, see this chapter.
2 Introduction
Finding More Information
Online Setup Guide
Explains how to set up the scanner and install the scanner
software and options. Also gives basic scanning instructions,
including how to make scanner software settings and how to use
the Start Button feature.
Quick Start Manual
Provides you with information and instructions on how to
unpack and set up your scanner. It also provides instructions on
using the online documentation provided on CD-ROM.
Online help for EPSON TWAIN Pro and EPSON TWAIN Pro
Network
Online help provides you with detailed information on EPSON
TWAIN Pro and EPSON TWAIN Pro Network. To access online
help, click the Help button in EPSON TWAIN Pro or EPSON
TWAIN Pro Network.
Information on PageManager and other software
For more information on Presto! PageManager for EPSON and
the other applications provided on the scanner software
CD-ROM, see the documentation provided for that application
on the CD-ROM.
Optimizing Scanning 1-1
Chapter 1
Optimizing Scanning
Recommended Adjustment Order
The Adjust tools in EPSON TWAIN Pro’s Preview window offer
you a powerful means of improving image quality, but the order
in which you use these tools can greatly affect your results.
For optimum image enhancement, first click the Auto
Exposure button to automatically adjust the Gamma, Highlight,
and Shadow settings, then make any further adjustments in the
order explained below.
Adjust the brightness and contrast
1. Adjust the Highlight and Shadow settings in the Image
Controls dialog box. See “Making the Highlight setting” on
page 1-2 and “Making the Shadow setting” on page 1-3.
2. Adjust the Gamma setting in the Image Controls dialog box.
See “Making the Gamma setting” on page 1-5.
3. Adjust the tone curve with a predefined tone correction
setting in the Tone Correction dialog box. See “Applying a
preset tone curve” on page 1-5.
Make color adjustments
4. Adjust the Gray Balance Intensity setting in the Color
Adjustment dialog box. See “Making the Gray Balance
Intensity setting” on page 1-7.
5. Adjust the Saturation setting in the Color Adjustment dialog
box. See “Making the Saturation setting” on page 1-8.
1-2 Optimizing Scanning
6. Manually adjust the tone curve for individual colors in the
Tone Correction dialog box. See “Making tone curve settings”
on page 1-9.
Adjusting Brightness and Contrast
Adjust brightness and contrast before adjusting image color.
Brightness and contrast settings should be made in the order they
appear in this section.
Making the Highlight setting
Highlights are the brightest areas of an image. Follow these steps
to adjust the Highlight setting.
1. Click the Image Controls button in the Preview window.
2. Click the eyedropper button under Highlight.
Optimizing Scanning 1-3
The pointer changes to an eyedropper, with movement
restricted to within the Preview window.
3. Move the eyedropper to the location you want to select as the
highlight point and click it.
The brightness of the pixel at the point you click is set as the
highlight level, and the other parts of the image are adjusted
accordingly.
4. To change the highlight level of the point you selected, move
the Highlight slider left or right, or enter a value between 61
and 490 in the text box.
Making the Shadow setting
Shadows are the darkest areas of an image. Follow these steps to
adjust the Shadow setting.
1. Click the Image Controls button in the Preview window.
1-4 Optimizing Scanning
2. Click the eyedropper button under Shadow.
The pointer changes to an eyedropper, with movement
restricted to within the Preview window.
3. Move the eyedropper to the location you want to select as the
shadow point, and then click.
The brightness of the pixel at the point you click is set as the
shadow level, and the other parts of the image are adjusted
accordingly.
4. To change the shadow level of the point you selected, move
the Shadow slider left or right, or enter a value between 0 and
60 in the text box.
Optimizing Scanning 1-5
Making the Gamma setting
Gamma is the difference in contrast between the light tones and
dark tones of an image. Changes in the gamma level only affect
mid-tones, and can be effective for bringing out details normally
hidden in shadow or highlights.
Follow these steps to adjust the Gamma setting.
1. Click the Image Controls button in the Preview window.
2. Move the Gamma slider left or right, or enter a value between
0.5 and 5.0 in the text box.
Applying a preset tone curve
The Tone Correction feature provides preset tone correction
curves that let you adjust the contrast within an image. This gives
you more control over the image when used in conjunction with
the settings in the Image Controls dialog box.
1-6 Optimizing Scanning
Click the Tone Correction button in the Preview window, then
select a preset tone curve from the Tone Curve Name list. The
preset tone curves are described below.
Linear
A linear tone curve has no tone correction. Use this setting if you
are satisfied with the tone of the previewed image.
Lighten
Adjusts darker images (like underexposed film) to make them
slightly brighter.
Darken
Adjusts brighter images (like overexposed film) to make them
slightly darker.
Flat Contrast
Flattens high contrast images to make them look more natural.
High Contrast
Increases the contrast of dull images.
Open Shadow
Improves details in the dark areas of images.
Note:
See “Tone Correction” on page 2-40 for more information on tone
correction.
Optimizing Scanning 1-7
Adjusting Color
Color adjustments should be made after adjusting settings related
to brightness and contrast. Color settings should be made in the
order they appear in this section.
Making the Gray Balance Intensity setting
This setting allows you to remove a cast (tint) from a specific color.
1. Click the Color Adjustment button in the Preview
window.
2. In the Color Adjustment dialog box, click the eyedropper
button under Gray Balance Intensity.
The pointer changes to an eyedropper, with movement
restricted to within the Preview window.
3. Move the eyedropper to a location that contains the color
whose gray balance intensity you want to adjust, and then
click.
The color you selected appears in the two boxes below the
Gray Balance Intensity slider.
1-8 Optimizing Scanning
4. To change the gray balance intensity level of the color you
selected, move the slider left or right, or enter a value in the
text box.
You can enter a value between 0 and 100. Changing the value
causes the color in the right hand box to change accordingly.
Your changes are also reflected in the image in the Preview
window.
Note:
See “Color Adjustment” on page 2-42 for more information on
adjusting the gray balance intensity level.
Making the Saturation setting
Saturation is the density of a color. Higher saturation makes the
color appear richer, while lower saturation makes it appear paler.
Follow these steps to adjust the Saturation setting.
1. Click the Color Adjustment button in the Preview
window.
2. Move the Saturation slider left or right, or input a value
between -100 (lowest color density) and 100 (highest color
density).
Optimizing Scanning 1-9
Making tone curve settings
After you have made the other color settings described in this
section, you can use the tone curve to fine-tune the intensity of
colors in your image.
Note:
The Tone Correction feature is unavailable whenever Black & White is
selected as the Pixel Depth setting and None is selected as the Halftone
setting.
Click the Tone Correction button in the Preview window,
select the Channels button for the color you want to adjust, then
use the tone curve editor and Output options as explained below.
Tone curve editor
Moving the mouse pointer into the tone curve editor causes it to
change to a finger. Use this pointer to drag any of the five points
in the curve and change its shape. The horizontal axis of the curve
is the brightness of the original (input values) while the vertical
axis is the brightness of the scanned image (output values).
1-10 Optimizing Scanning
To change the tone curve back to its default, select Linear from the
Tone Curve Name list.
To add your settings to the Tone Curve Name list, type a name
for the settings in the list, then click Save.
Output values
These are the current values for output data in accordance with
the current locations of the points inside the tone curve editor.
These values change when you drag points in the tone curve
editor, or you can enter in values here to change the shape of the
tone curve. Each value can be adjusted within a range of 0 to 255.
Note:
Each output value name has a check box to the left of it. Highlight
and Shadow are always selected, but you can select or clear 1/4
Tone, Midtone, and 3/4 Tone by clicking their check boxes.
When a value’s check box is clear, its point on the tone curve editor
automatically shifts to smooth out the tone curve when one of the
other points is moved.
When a value’s check box is selected, it means that its point is fixed
and it will not shift when other points are moved.
Optimizing Scanning 1-11
1
Improving Text Scanning for OCR
This section gives you suggestions and recommended settings in
order to improve OCR (optical character recognition)
performance when scanning text.
Follow these steps to improve character recognition performance.
1. In the EPSON TWAIN Pro main dialog box, make sure OCR
is selected in both the Image Type and Destination list boxes.
Then click the Image Type button. The Image Type dialog box
appears.
2. Select None from the B/W Option list, and then click OK.
3. Click Preview, then click the Image Controls button to
display the Image Controls dialog box.
1-12 Optimizing Scanning
4. Use the Threshold slider to change the threshold value,
monitoring the results of your changes in the Preview
window. Depending on the lightness, darkness, and
complexity of the background on which the text is printed,
increasing or decreasing the threshold value can make it
easier for OCR software to recognize characters.
If you still have problems...
1. In the EPSON TWAIN Pro main dialog box, try increasing the
Resolution value to 400. Be aware that scanning at higher
resolution takes longer and may not greatly increase the
recognition rate.
2. If you still have problems, try using the enhancement tools in
your OCR software to make adjustments.
Potential text recognition problems
The quality of the text in your original document greatly effects
OCR results.
The following types of originals can make recognition difficult
and should be avoided if possible:
Items that have been copied from other copies
Faxes
Text with tightly-spaced characters or line pitch
Text that is in tables or underlined
Cursive or italic fonts, and font sizes less than 8 points
Remember that most OCR software cannot recognize
handwritten characters.
Understanding EPSON TWAIN Pro Features 2-1
Chapter 2
Understanding EPSON TWAIN Pro
Features
Using the EPSON TWAIN Pro Main Dialog Box
The EPSON TWAIN Pro or EPSON TWAIN Pro Network main
dialog box allows you to make a variety of settings to attain the
highest quality scanned images. The main dialog box settings and
controls are described in detail in this section.
Note for Macintosh users:
The screens shown in this section are for Windows, and may differ
slightly from the Macintosh version of EPSON TWAIN Pro or EPSON
TWAIN Pro Network. However, the method for making settings is the
same unless otherwise noted.
2-2 Understanding EPSON TWAIN Pro Features
Note for EPSON TWAIN Pro Network users:
Although the screens shown in this guide are for EPSON TWAIN Pro,
they also apply to EPSON TWAIN Pro Network.
Note:
If you attempt to scan an image that exceeds your computer’s available
memory or disk space, an alert appears on the screen.
Understanding EPSON TWAIN Pro Features 2-3
Selecting a Document Source
When scanning a reflective document placed on the document
table of the scanner, leave the Document Source set to Flatbed.
Other selections are available depending on whether an optional
Automatic Document Feeder or Transparency Unit is installed.
Note:
Uninstalled options are not displayed.
Flatbed
Choose this setting to use the document table of the scanner.
Auto Document Feeder
Choose this setting to use the optional Automatic Document
Feeder.
Note:
Some applications do not support feeding and scanning more than one
sheet at a time.
TPU for Neg. Film, TPU for Pos. Film
Select one of these settings when using the Transparency Unit. If
you are scanning negative film, select TPU for Neg. Film, and if
you are scanning positive film (or slides), select the TPU for Pos.
Film setting.
2-4 Understanding EPSON TWAIN Pro Features
Selecting an Image Type
Use the Image Type list to select from a variety of predefined and
user-defined settings, or use the Image Type button to make
detailed changes to settings and to save custom settings.
Image Type list
The Image Type list provides the predefined settings described
below. There is a predefined setting to suit most image types, so
EPSON recommends using the predefined settings first. If you
later want to make fine adjustments to the Image Type setting,
use the Image Type button. See “Image Type button” on page 2-6
for details.
48-bit Color (HiFi)
48-bit colors, best quality output when scanning colored
documents
Note:
This setting is available only with certain applications, such as Adobe
®
Photoshop
®
.
24-bit Color (Std)
24-bit colors, high quality output when scanning colored
documents
Understanding EPSON TWAIN Pro Features 2-5
24-bit Color De-screening
24-bit colors, high quality with de-screening to remove moiré
patterns
Note:
A moiré is a cross-hatch pattern that appears on scanned images when
scanning printed material. It is a result of interference that occurs due
to the difference between the pitches of the scanning and the halftone
screens.
16-bit Gray (HiFi)
16-bit gray, best quality output when scanning gray documents
Note:
This setting only has an effect with certain applications, such as Adobe
Photoshop.
8-bit Gray (Std)
256 grays, high quality, and de-screening is selectable (default is
no de-screening)
Line Art
Black and white, draft quality
OCR
Black and white, best quality
Copy & Fax
Black and white, hard halftone, draft quality, Auto Area
Segmentation
2-6 Understanding EPSON TWAIN Pro Features
Image Type button
The Image Type button opens the Image Type dialog box, where
you can customize the Image Type settings described in this
section.
To save the settings you made as a group of custom settings, type
a new name in the Image Type Name box, then click Save. To
delete a custom Image Type setting, select the setting name then
click Delete.
To apply the settings you made, click OK. You can see the effects
of all settings except B/W Option in the Preview window. Click
the Preview button in the main dialog box to open this window.
Image Type Name
The names of predefined settings and any custom settings you
have saved appear in the Image Type Name list.
Understanding EPSON TWAIN Pro Features 2-7
Pixel Depth
Select the pixel depth from:
48-bit Color, 24-bit Color, 16-bit Gray, 8-bit Gray, and Black &
White.
Note:
Depending on the model of your scanner, the 48-bit Color setting
may be 42 or 36 bits, and the 16-bit Gray setting may be 14 or 12 bits.
The Pixel Depth setting determines which values are displayed in
the Densitometer window. For more information, see “Using the
Densitometer” on page 2-28.
Scanning Mode
Use this setting to select between speed and quality. Best provides
the best quality image, while Draft provides faster scanning with
some loss of quality. Note that you can also change the scanning
mode of the previewed image using the Configuration dialog box.
See “Making Configuration Settings” on page 2-17 for details.
De-screening
Select either On or Off. When On is selected, moiré patterns are
automatically removed from scanned images, but scanning takes
longer.
Note:
A moiré is a cross-hatch pattern that appears on scanned images when
scanning printed material. It is a result of interference that occurs due
to the difference between the pitches of the scanning and the halftone
screens.
Auto Exposure Option
Allows you to specify the kinds of adjustments made by the Auto
Exposure feature. When scanning photographs or documents that
contain high quality images, select Photo. Select Document when
scanning printed text.
2-8 Understanding EPSON TWAIN Pro Features
Note:
You can see the adjustments made by the Auto Exposure feature in the
Preview window. For details on using the Auto Exposure feature, see
“Auto Exposure” on page 2-37.
Dropout
Select a color to subtract from a black and white scan of a colored
original. Proper use of dropout can improve the quality of your
black and white scans. Available dropout options are:
None, Red, Green, and Blue.
Note:
Dropout is available only when Pixel Depth is set to 8-bit Gray or
Black & White.
Depending on the image, you may need to adjust the Threshold
setting in the Image Controls dialog box before making the Dropout
setting to achieve the desired effect. For more information on the
Threshold setting, see “Image Controls” on page 2-38.
B/W Options
These options are useful when scanning text or grayscale images.
Text Enhancement Technology
To improve recognition accuracy during OCR (optical character
recognition) scanning, select this option. This function eliminates
the document background from scans.
Auto Area Segmentation
To make grayscale images clearer and text recognition more
accurate, select this option. This function separates text from
graphics.
Note:
The B/W Option setting is available only when Black & White is
selected as the Pixel Depth setting.
Understanding EPSON TWAIN Pro Features 2-9
When you need neither Text Enhancement Technology nor Auto
Area Segmentation, select None.
Halftone
Select a halftone or dither setting to reproduce images using
special dot patterns:
Mode A (Hard Tone), Mode B (Soft Tone), Mode C (Net Screen),
Dither A (4
×
4 Bayer), Dither B (4
×
4 Spiral), Dither C (4
×
4 Net
Screen), Dither D (8
×
4 Net Screen), or None.
Note:
Halftone is available only when Pixel Depth is set to Black & White.
Selecting a Destination
The Destination setting allows you to specify the application or
the output device for which the scanned image is intended. Use
the Destination list to select a predefined or user-defined
destination, or use the Destination button to customize
Destination settings.
2-10 Understanding EPSON TWAIN Pro Features
Destination list
Select a predefined or custom setting from this list. The
predefined settings have the Resolution and Unsharp Mask
values shown in the following table.
Destination
name
Resolution Unsharp
Mask
Line drawings and
halftone images
Photos
Screen/
Web
96 dpi (for Windows)
72 dpi (for Macintosh)
96 dpi (for Windows)
72 dpi (for Macintosh)
medium
Prepress
175 lpi
350 dpi 350 dpi off
Prepress
150 lpi
300 dpi 300 dpi off
Prepress
133 lpi
266 dpi 266 dpi off
Prepress
120 lpi
240 dpi 240 dpi off
LineWork
Scan
1200 dpi 600 dpi medium
EPSON
Stylus
Printer (Fine)
360 dpi 150 dpi medium
EPSON
Stylus
Printer
(Photo)
720 dpi 300 dpi medium
Laser Printer 600 dpi 200 dpi medium
Fax 200 dpi 200 dpi off
OCR 300 dpi 300 dpi off
Understanding EPSON TWAIN Pro Features 2-11
If you are using an EPSON Stylus printer and are printing scanned
images with the Economy, Normal, or Fine Print Quality settings
in your printer software, selecting EPSON Stylus Printer (Fine) is
recommended. If you are printing with the SuperFine or Photo
Print Quality settings, select EPSON Stylus Printer (Photo).
Note:
The effects of the Destination settings cannot be viewed in the Preview
window.
Destination button
The Destination button opens the Destination dialog box, where
you can change Resolution and Unsharp Mask settings and add
your custom settings to the Destination list, as described below.
To save the settings you made, type a new name in the Destination
Name box, and then click Save. To delete a custom Destination
setting, select the setting name then click Delete.
To apply your settings, click OK. To cancel the settings, click
Cancel.
2-12 Understanding EPSON TWAIN Pro Features
Destination Name
Predefined and custom setting names appear in the Destination
Name list. Select a setting from the list, or save new custom
settings by typing a name in the Destination Name box, then
clicking Save.
Resolution
Specify a scanning resolution for line drawings and halftone
images, and for photos. You can select one of the dpi settings
available in the list box, or you can type your own setting in
increments of 1 dpi up to 6400 dpi. The maximum resolution
available is 12800 dpi.
Note:
When the Pixel Depth setting in the Image Type dialog box is set to
Black & White, the Drawing/Halftone settings take effect. For other
Pixel Depth settings, the Photo settings take effect.
When making Drawing/Halftone settings for printer destinations,
make the Resolution setting the same as the resolution specified in
the printer driver. When making Photo settings for printer
destinations, specify a Resolution setting between 150 and 300 dpi.
Selecting a resolution higher than 300 dpi slows down printing
without improving the output quality
.
The Resolution setting is closely related to the Image Size and Scale
settings. If you change them arbitrarily, the resulting image may
not be what you expected.
Unsharp Mask
The Unsharp Mask feature improves the sharpness of the scanned
image. You can choose between four Unsharp Mask settings: Off,
Low, Medium, and High. Selecting High improves image sharpness
the most, but may cause your software to work more slowly. You
can see the effects of your settings in the Preview window.
Understanding EPSON TWAIN Pro Features 2-13
Setting the Resolution
You can change the resolution for the current scanning operation
in the main dialog box by selecting a resolution from the list or by
typing in a value up to 6400 dpi. The maximum resolution you
can select is 12800 dpi. Changes made here override the resolution
setting in the Destination dialog box.
Specifying Source and Target Image Sizes
The Source values indicate the size of the area that is displayed or
selected in the Preview window.
The Target values indicate what size the image will be when it is
output.
Note:
The Source and Target size settings are closely related to the Resolution
setting. If you change these settings arbitrarily, the resulting image may
not be what you expect.
2-14 Understanding EPSON TWAIN Pro Features
Width (W) and height (H) values
The Source and Target width and height values are indicated in
the selected unit of measure. When the Preview window is open,
you change these values by typing new values in the fields and
pressing the Tab key, or by resizing the marquee, or frame,
surrounding a portion of the image in the Preview window. See
“Using Marquees” on page 2-30 for more information.
When the Preview window is closed, the Source values cannot be
adjusted, and you can only adjust the Target values by using the
Scale slider.
Units
Select pixels, inches, or cm as the unit of measure.
Storage size indicator
The storage size of an image is indicated in KB or MB. As you
change Target values, this value also changes.
Understanding EPSON TWAIN Pro Features 2-15
Lock button
Clicking the lock button allows you to scale a selected portion of
an image to fit a fixed Target size. This is especially useful when
printing. In this case, enter the printable area of the paper in the
Source width and height fields, and then click the lock button to
fix the Target size. When you resize the active marquee, the
selected area is automatically scaled to fit the Target size.
Scale
Use the Scale settings to reduce or enlarge Target size
proportionally. The range of possible reduction or enlargement
depends on the current Resolution setting.
Move the slider or click the left or right arrows to change the
Target size in 1% increments. You can also type a value in the Scale
field and press the Tab key.
locked
unlocked
2-16 Understanding EPSON TWAIN Pro Features
Using the Settings Dialog Box
Clicking the Settings button opens the Settings dialog box, where
you can view all current settings, save the current settings with a
new name, and apply previously-saved custom settings. This
button is only available when the Preview window is open.
Note:
Depending on your scanner model, the preset settings for using film
holders may appear in the User defined settings list when the
optional Transparency Unit is installed.
Only custom settings related to the currently selected Document
Source appear in the User defined settings list.
To save the current settings, type a new name in the User defined
settings box, then click Save. To delete a setting from the list,
select the setting name in the list, then click Delete.
To apply saved settings, select a setting name from the list, then
click OK.
To restore the previous settings, click Cancel.
Understanding EPSON TWAIN Pro Features 2-17
Making Configuration Settings
Click the Configuration button to open the Configuration dialog
box, where you can make a variety of configuration settings
related to the Preview window and the previewed image, color
adjustment, and the Densitometer.
Preview menu
This menu allows you to make basic settings that affect the
properties of the Preview window.
Preview Window Size
Select the size of the Preview window. Your choices are Large,
Medium, and Small.
2-18 Understanding EPSON TWAIN Pro Features
Fast Preview
Enables high-speed loading of the previewed image. If this is
selected, the document is scanned quickly at draft quality. If this
is not selected, the previewed image is scanned at a high quality,
and you can get accurate values for the Highlight, Shadow, and
Gray Balance Intensity by sampling with the eyedropper in the
previewed image.
Do not select this setting when quality is more important than
speed.
Eyedropper Sampling Area
This setting allows you to specify the area in pixels that is sampled
when using the eyedropper to make the Highlight, Shadow, and
Gray Balance Intensity settings. You can choose from the
following settings: 1 x 1 pixel, 3 x 3 pixels, and 5 x 5 pixels.
Note:
If you select the 3 x 3 pixels or 5 x 5 pixels setting, an average of the
color values of the sampled pixels is used when adjusting the Highlight,
Shadow, or Gray Balance setting.
Understanding EPSON TWAIN Pro Features 2-19
Color menu
Click the Color tab to display the Color menu.
This menu allows you to make a variety of settings related to color
adjustment and color management. Choose the appropriate
setting from the list below.
Note:
Depending on the version of Windows you are using, some settings may
not be available. See below for details.
Color Controls
The Color Controls setting allows you to make settings that affect
the gamma for your monitor and the way the Auto Exposure
feature works.
Setting When to Select
Color Controls
(default setting)
When not using a color management system
with EPSON TWAIN Pro
ICM (for Windows), or
ColorSync (for Macintosh)
To use color management system profiles
with EPSON TWAIN Pro
No Color Correction To make a color profile using a color
calibration device
2-20 Understanding EPSON TWAIN Pro Features
Display Gamma
You can change the gamma value for your monitor by typing a
value in the Display Gamma box, or by clicking the arrows next
to the box. You can choose between values of 1.0 to 3.0 in
increments of 0.1. The default setting is 1.8.
The Display Gamma setting also determines how clicking the
Auto Exposure button affects the Gamma setting.
Continuous Auto Exposure
Select this check box to make the Auto Exposure feature work
whenever you click the Preview button, modify the size of the
preview with the zoom feature, make a marquee, or modify the
size or change the location of a marquee. If this check box is clear,
the Auto Exposure feature will only work when you click the
Auto Exposure button in the Preview window.
Note:
This feature is only available when Color Controls is selected.
ICM (for Windows) or ColorSync (for Macintosh)
Select this setting to reproduce the colors in your image using the
available color management system for your computer: ICM for
Windows, or ColorSync for Macintosh. Selecting this setting
enables you to choose a color profile for your scanner in the Source
(Scanner) list box, and a color profile for your monitor or output
device (such as printer) in the Target list box. After the image is
scanned, it is converted according to these settings before it is sent
to the application.
Note:
The ICM and ColorSync settings are provided for experienced
users. If you are not familiar with color management systems, select
Color Controls to avoid unexpected results.
Understanding EPSON TWAIN Pro Features 2-21
If your printer and monitor do not support the available color
management system, select Color Controls. See your printer and
monitor documentation to check if they support ICM or ColorSync.
When ICM or ColorSync is selected, the Continuous Auto
Exposure setting is unavailable.
If ICM or ColorSync is selected, whenever the Auto Exposure
function is used, the Shadow setting in the Image Controls dialog
box is automatically set to 8, and the Gamma setting is set to 1.0.
ICM is not available in Windows NT 4.0.
In Windows 95, you can select the ICM setting, but the Source
(Scanner) and the Target settings are not available.
If you select ICM or ColorSync in EPSON TWAIN Pro when using
Adobe Photoshop 5.0 or 5.5, be sure to clear the Display Using
Monitor Compensation check box in Photoshop’s RGB Setup
Dialog box.
Source (Scanner)
Choose a color profile for the scanner you are using from this list
box. EPSON recommends selecting EPSON Standard when using
an EPSON scanner.
Note:
This setting is not available in Windows 95 and NT 4.0.
Target
In this list box you can choose a color profile that matches either
your monitor or an other output device, such as your printer, or
you can choose one of the RGB color space profiles that matches
those available in Adobe Photoshop.
2-22 Understanding EPSON TWAIN Pro Features
To use the same color profile that is currently being used by your
computer monitor, select Monitor RGB. To choose a different
profile for your monitor or printer, select from the monitor and
printer profiles in the list.
To choose a color profile that matches the RGB color space you
are using in Adobe Photoshop, select that color space from the
list. For more information on color management in Adobe
Photoshop, see the Adobe Photoshop’s documentation.
Note:
If you made a color profile to calibrate your monitor using the Adobe
Gamma utility, that profile appears in the Target list box.
The default Target setting in Windows is sRGB, and for Macintosh
the default Target setting is Monitor RGB.
This setting is not available in Windows 95 or NT 4.0.
No Color Correction
This setting allows you to scan images without adjusting the
quality of the image at all. Select this setting for best results when
making your own color profile using a color calibration device.
Note:
This setting is not available in Windows 95 and NT 4.0.
Understanding EPSON TWAIN Pro Features 2-23
Densitometer menu
Click the Densitometer tab to display the Densitometer menu.
Sampling Area
This setting allows you to set the area in pixels that the
Densitometer samples. You can choose between 1x1pixel,
3x3pixels, or 5x5pixels.
Note:
You can change the sampling area while viewing the Densitometer
window by pressing your computer’s Ctrl and E keys.
2-24 Understanding EPSON TWAIN Pro Features
Other menu
Click the Other tab to display the Other menu.
Save Preview Image and Settings
When this check box is selected, the image that was shown in the
Preview window the last time EPSON TWAIN Pro was used will
appear with its associated settings the next time you start EPSON
TWAIN Pro. This feature is useful when scanning the same
document more than once, and is especially useful when using
different TWAIN-compliant applications to scan the same
document.
Note:
When this check box is selected, the document shown in the Preview
window when EPSON TWAIN Pro starts may be different than the
document currently on the document table. Before scanning, make sure
the correct document is set on the scanner.
Understanding EPSON TWAIN Pro Features 2-25
Using the Scan Button
Clicking the Scan button while the Preview window is open scans
the areas in active and selected marquees using the settings you
made with the Adjust tools.
If you click the Scan button when the Preview window is not
open, the scanner automatically locates the image, adjusts the
exposure, then scans the image. In this case, any settings you may
have made when the Preview window was open are ignored.
During scanning, a progress indicator appears. If necessary, click
the Cancel button to cancel the operation.
After the scan is finished, the scanned image is transferred to the
application you used to open EPSON TWAIN Pro so that you can
work with the image from within that application.
Note:
You cannot scan an image whose size exceeds available memory or
disk space. If you attempt to scan an image that is too large, an error
message appears.
After an image is scanned, be sure to save it.
Note when scanning over a network:
If the network connection is terminated before the scanned image is
transferred, you may need to specify a longer interval for the Timeout
Setting.
Using the Preview Button
Clicking the Preview button opens the Preview window, where
you can view and adjust the quality of your image before
scanning. For details on using the Preview window, see “Using
the Preview Window” on page 2-26.
2-26 Understanding EPSON TWAIN Pro Features
2
Using the Preview Window
Before you scan an image, you can use the Preview window to
see the effects of most EPSON TWAIN Pro and EPSON TWAIN
Pro Network settings, and to make additional image adjustments.
You can also use marquees (frames) to scan only selected portions
of an image. In addition, the Preview window gives you access to
the Densitometer, which you can use to sample a range of pixels
in the previewed image.
Note:
You cannot preview an image that exceeds available memory or disk
space.
Note for Macintosh users:
The screens shown in this section are for Windows, and may differ
slightly from the Macintosh version of EPSON TWAIN Pro or EPSON
TWAIN Pro Network. However, the method for making settings is the
same unless otherwise noted.
Note for EPSON TWAIN Pro Network users:
Although the screens shown in this guide are for EPSON TWAIN Pro,
they also apply to EPSON TWAIN Pro Network.
Understanding EPSON TWAIN Pro Features 2-27
To open the Preview window and the Densitometer, click Preview
in the EPSON TWAIN Pro main dialog box.
The Preview window displays the effects of the following
settings.
Image Type: Pixel Depth, Dropout, and Halftone
Destination: Unsharp Mask
Image Controls
Tone Correction
Color Adjustment
2-28 Understanding EPSON TWAIN Pro Features
Note:
Although the image in the Preview window changes as you make
settings, the settings do not affect the real image until you scan or rescan
the image.
Using the Densitometer
The Densitometer shows the RGB and luminosity (L) values of a
selected pixel or group of pixels, and indicates the difference
between these values before and after making adjustments to the
previewed image.
To use the Densitometer, place the cursor over an area of the
image in the Preview window to sample a pixel or group of pixels.
A close-up of the area being sampled appears on the right side of
the Densitometer window, and the values of the sampled pixel or
group of pixels are displayed on the left side of the window.
The values that appear in the Densitometer window depend on
the Pixel Depth setting in the Image Type dialog box. If Pixel
Depth is set to one of the color settings, both RGB and luminosity
values are shown. If Pixel Depth is set to one of the gray settings,
only the luminosity value is shown. If Pixel Depth is set to Black
& White, then RGB and luminosity values are replaced with a Bit
value.
Understanding EPSON TWAIN Pro Features 2-29
Note:
The luminosity value is calculated by the following formula:
0.2R+0.6G+0.2B.
For more information on the Pixel Depth setting, see “Image Type
button” on page 2-6.
Specifying the number of pixels to be sampled
You can choose to sample one pixel at a time, 3
×
3 pixels at a time,
or 5
×
5 pixels at a time. To change the number of pixels being
sampled, press the Ctrl and E keys on your keyboard. The square
in the center of the close-up changes size to indicate the amount
of pixels being sampled.
Note:
The values shown for a group of pixels are an average of each pixel’s
values.
In the Configuration dialog box, you can specify the default number
of pixels to be sampled when the Densitometer opens. See
“Densitometer menu” on page 2-23 for instructions.
Using the Preview Buttons
The Preview buttons let you zoom in on selected
portions of the previewed image.
2-30 Understanding EPSON TWAIN Pro Features
Zoom button
To enlarge a selected portion of the previewed image, click and
drag the mouse over the portion to be enlarged, then click the
Zoom button. For more information on selecting portions of
images, see “Using Marquees” on page 2-30.
Note:
The Zoom button is unavailable when one or more marquees are selected
in addition to the active marquee.
Return button
Clicking the Return button restores the image to a full preview.
This button is available only when the image is zoomed as
described above.
Restore Zoom button
Clicking the Restore Zoom button restores the image to the
previous zoom from memory, which is quicker than clicking the
Zoom button again. This button is available only when the image
has been previously zoomed.
Using Marquees
A marquee is a frame that you draw around a portion of a
previewed image to select it. You can use one marquee to select
an area you want to enlarge using the Preview buttons, or you
can use one or several marquees to adjust and to scan selected
portions of an image.
Understanding EPSON TWAIN Pro Features 2-31
Making and modifying marquees
To create a marquee, move the pointer over the image in the
Preview window. The pointer becomes a set of cross-hairs. Hold
down the mouse button and drag the cross-hairs over an area of
the image, then release the mouse button to create the marquee.
The frame around the marquee appears as a moving dotted line,
indicating that it is active, which means that it can be resized.
Only one marquee can be active at a time, and if you make several
marquees, the last marquee you make becomes the active
marquee. To make a different marquee active, click anywhere
inside the marquee.
Note:
To create a new marquee inside the active marquee, make the new
marquee outside the active marquee first, then move it inside.
You cannot make multiple marquees when Auto Document
Feeder is selected as the Document Source.
Follow the instructions below to select multiple marquees, and to
resize and move marquees.
Selecting multiple marquees
If you select several marquees at once, you can apply image
adjustments to all of the selected areas, and you can scan each of
the selected areas individually with a single click of the Scan
button.
2-32 Understanding EPSON TWAIN Pro Features
To select several marquees at once, click each marquee while
holding down the Ctrl key (for Windows) or the Shift key (for
Macintosh) on your keyboard. The frames around selected
marquees become static dotted lines, and the last marquee you
click becomes the active marquee. To cancel the selection of a
marquee, click it again while holding down the Ctrl key
(Windows) or the Shift key (Macintosh).
Resizing marquees
When you move the cross-hairs over the edge of the active
marquee, the cross-hairs will change to a double-headed arrow
as shown below. (You may need to click the marquee first to make
it active). Drag the arrow to resize the marquee. To resize the
marquee proportionally, press the Shift key while dragging the
arrow.
Note:
You cannot resize an active marquee if any other marquees are selected.
To cancel the selection of a marquee, click the marquee while holding
down the Ctrl button (for Windows) or the Shift button (for Macintosh)
on your keyboard.
Understanding EPSON TWAIN Pro Features 2-33
Moving marquees
To move the active marquee, move the cross-hairs inside the
marquee until the cross-hairs change into a hand, then drag the
marquee to move it. To move more than one marquee at a time,
first select the marquees by clicking them while holding down the
Ctrl key on your keyboard. To move the marquee or group of
marquees in a straight line vertically or horizontally, press the
Shift key while dragging an active or selected marquee.
Using the Marquee tools
Delete button
Clicking the Delete button removes the active and selected
marquees. To delete all marquees at once, first click the All button,
then click this button.
The Marquee tools described below help you to work
with marquees and to automatically place marquees
around images in the Preview window.
2-34 Understanding EPSON TWAIN Pro Features
Note:
When the Preview window is active, you can also delete the active and
selected marquees by pressing the Delete key on your keyboard.
Duplicate button
Clicking the Duplicate button creates another marquee the
same size as the active marquee. Clicking this button while
holding down the keys noted in the table below causes the
duplicate marquee to appear in the specified orientation relative
to the original marquee.
Note:
This button is unavailable when one or more marquees are selected in
addition to the active marquee.
Auto Locate button
Click the Auto Locate button to automatically frame a
previewed image with a marquee, thus eliminating unnecessary
borders.
Horizontal Vertical
Windows Ctrl key Alt key
Macintosh Command key option key
Understanding EPSON TWAIN Pro Features 2-35
Note:
The Auto Locate feature is automatically activated when scanning
without previewing.
The Auto Locate feature is unavailable when TPU for Neg. Film or
TPU for Pos. Film is selected as the Document Source setting.
If the previewed image consists of several images separated by
white space, clicking the Auto Locate button places a single
marquee around all of the images
. If any of the images are already
surrounded by active or selected marquees, clicking this button
adjusts the marquees to match the size of the images.
Marquee number indicator
All button
Click this button to select all marquees in the Preview window.
This feature is useful when you want to scan all the selected areas,
or when you want to delete all marquees.
This indicates the number of marquees in the Preview
window.
2-36 Understanding EPSON TWAIN Pro Features
Using the Adjust Buttons
The Adjust buttons described in this section offer
you a powerful means of improving image quality.
All adjustments you make with these tools are
shown in the previewed image. For further
information on using these buttons to optimize
scanning, see “Recommended Adjustment Order”
on page 1-1.
Auto Exposure
Image Controls
Tone Correction
Color Adjustment
Reset
Focus
Understanding EPSON TWAIN Pro Features 2-37
Auto Exposure
Click the Auto Exposure button to optimize the exposure for
the entire image, or for areas surrounded by active or selected
marquees. This feature adjusts the Gamma, Highlight, and
Shadow settings automatically.
Note:
Select Continuous Auto Exposure on the Color menu of the
Configuration dialog box to set the Auto Exposure feature to work
whenever you click the Preview button, modify the size of the
previewed image with the zoom feature, make a marquee, or change
the size or location of a marquee. See “Color menu” on page 2-19
for more information.
The Auto Exposure feature is not available when the Pixel Depth is
set to Black & White and Auto Area Segmentation is not selected
in the Image Type dialog box.
The Auto Exposure feature overrides any Gamma, Highlight, or
Shadow settings made in the Image Controls dialog box. Be sure to
use Auto Exposure before making any of the these settings.
The Auto Exposure feature is automatically activated when
scanning without previewing.
2-38 Understanding EPSON TWAIN Pro Features
Image Controls
Click the Image Controls button to open the Image Controls
dialog box. This dialog box allows you to make a wide range of
image adjustments, as described below.
Note:
The Image Controls settings are not available when Text
Enhancement Technology is selected in the Image Type dialog
box.
The Image Controls button is unavailable when one or more
marquees are selected in addition to the active marquee.
The Image Controls settings are optimized automatically when you
scan without previewing.
If Pixel Depth is set to Black & White and Halftone is set to None
in the Image Type dialog box, all settings except Threshold are not
available.
The Gamma, Highlight, and Shadow settings are overridden by the
Auto Exposure feature. Be sure to use the Auto Exposure feature
before making these settings. See “Auto Exposure” on page 2-37 for
more information on using this feature.
Understanding EPSON TWAIN Pro Features 2-39
Exposure
The Exposure setting lightens or darkens an image. You can select
from -10 (darkest) to 20 (brightest) by moving the slider.
The Exposure and Highlight settings are related. When the
Exposure setting is changed, the Highlight value also changes
automatically.
Gamma
The Gamma setting allows you to adjust the mid-tones in an
image. You can select from 0.5 (darkest) to 5.0 (brightest) by
moving the slider.
For further information on using the Gamma setting to optimize
scanning, see “Making the Gamma setting” on page 1-5.
Highlight
The Highlight setting allows you to adjust the brightness level of
the brightest parts of an image. You can select from 61 to 490 by
moving the slider.
Click the eyedropper button beneath the slider, and the mouse
pointer changes to an eyedropper. Move the eyedropper over the
previewed image, and click a bright area. The eyedropper “picks
up” the color from that area, and uses it as the highlight for the
entire image. Click Cancel to restore the original image.
For further information on using the Highlight setting to optimize
scanning, see “Making the Highlight setting” on page 1-2.
Shadow
The Shadow setting allows you to adjust the darkness level of the
darkest parts of an image. You can select from 0 to 60 by moving
the slider.
2-40 Understanding EPSON TWAIN Pro Features
Click the eyedropper button beneath the slider, and the mouse
pointer changes to an eyedropper. Move the eyedropper over the
previewed image, and click a dark area. The eyedropper “picks
up” the color from that area, and uses it as the shadow for the
entire image. Click Cancel to restore the original image.
For further information on using the Shadow setting to optimize
scanning, see “Making the Shadow setting” on page 1-3.
Threshold
Available only when Pixel Depth is set to Black & White and
Halftone is set to None in the Image Type dialog box. The scanner
scans gray shades as either black or white using this setting, and
is useful for optical character reading (OCR).
You can select from 0 (lightest) to 255 (darkest) by moving the
slider.
Tone Correction
Clicking the Tone Correction button opens the Tone
Correction dialog box. The settings described in this section allow
you to adjust the tonal relationship between the original image
and its reproduction on a monitor or printer.
Understanding EPSON TWAIN Pro Features 2-41
Note:
The Tone Correction button is unavailable when one or more
marquees are selected in addition to the active marquee.
The Linear setting is the default Tone Correction setting.
The Tone Correction feature is not available when Pixel Depth is set
to Black & White, Halftone is set to None, and Text Enhancement
Technology is selected in the Image Type dialog box.
To save your Tone Correction settings, type a new name in the
Tone Curve Name box and click Save. To delete a setting from
the Tone Curve Name list, select the setting and click Delete.
To apply your Tone Correction settings, click OK. To restore the
original settings, click Cancel.
For further information on using Tone Correction to optimize
scanning, see “Making tone curve settings” on page 1-9.
Tone Curve editor
The editor allows you to customize tone correction. Drag points
on the tone curve to adjust the tone value. You can edit up to five
tonal elements.
Output options
If you select the check box for a specific point, such as 1/4 Tone
or Midtone, you can move that point and it will remain where you
leave it; it will not be affected by the movement of other points on
the curve. If the check box is cleared, the point will be affected by
the movement of other points.
Channels options
You can select the combined red, green, and blue (RGB) channel
to modify all colors, or select each of these colors separately.
2-42 Understanding EPSON TWAIN Pro Features
Note:
If Pixel Depth is set to Black & White or 8-bit Gray in the Image Type
dialog box, you can only select the combined RGB channel option.
Tone Curve Name list
Select a tone correction setting from this list. The custom settings
you have saved appear in this list.
For further information on using the Tone Curve Name list to
optimize scanning, see “Applying a preset tone curve” on page
1-5.
Color Adjustment
Click the Color Adjustment button in the Preview window to
open the Color Adjustment dialog box, where you can make Gray
Balance Intensity and Saturation settings.
Note:
The Color Adjustment button is unavailable when one or more
marquees are selected in addition to the active marquee.
If Image Type setting is not 48-bit Color (Hifi), 24-bit Color (Std)
or 24-bit Color De-screening, or Pixel Depth is set to 8-bit Gray
or Black & White, the Color Adjustment feature is not available.
Understanding EPSON TWAIN Pro Features 2-43
Gray Balance Intensity
The Gray Balance Intensity setting removes unwanted color casts
and tints by balancing color saturation.
Click the eyedropper button beneath the slider. The mouse
pointer changes to an eyedropper. Then click the color you want
to represent as gray. The eyedropper “picks up” the color and
displays it in the box beside the eyedropper button. You can then
correct the cast level for that color from 0 to 100 by moving the
slider. The corrected color appears in the box on the right, and the
effect shows up immediately in the previewed image. Click
Cancel to restore the original image.
Note:
You can use the Auto Exposure feature to automatically adjust Gray
Balance Intensity when Document is selected as the Auto Exposure
Option in the Image Type dialog box. To change the Auto Exposure
Option setting, see “Auto Exposure Option” on page 2-7.
Saturation
Saturation is the property that defines color depth. Select a
saturation level from -100 (less color) to 100 (more color) by
moving the slider.
Reset
Click the Reset button to return any Adjust button settings you
made to their default settings. If you did not alter any settings,
this button is not available.
Focus
Click the Focus button to set the focus position to either 2.5 or
0.0. The current setting is indicated under the button.
2-44 Understanding EPSON TWAIN Pro Features
If TPU for Neg. Film or TPU for Pos. Film is selected as the
Document Source, the value of the focus position is automatically
set to 2.5. If you are using film holders, you do not need to change
the focus setting. If you set the film directly on the scanner’s
document table, EPSON recommends changing the focus
position to 0.0.
If Flatbed, or Auto Document Feeder is selected, the value is
automatically set to 0.0. EPSON does not recommend changing
the setting unless you want to have the scanned images out of
focus or you are scanning an object that is not flat.
Setting Up the Start Button 3-1
Chapter 3
Setting Up the Start Button
Overview of Start Button Features
When your scanner is connected directly to your computer, you
can set up the scanner’s
Start button to operate in the following
ways:
Open an application of your choice
(for Windows Millennium Edition, 98, and 2000 users only)
Scan and send the scanned document to a specified
application
(if you have installed Presto! PageManager for EPSON from
the scanner software CD-ROM)
Note:
If you are using your scanner over a network, you cannot use the
scanner’s
Start button in the ways described above.
If you are using Windows Millennium Edition, 98, or 2000, read
“Making Windows Millennium Edition, 98, and 2000 Settings” on
page 3-2 first.
If you are using Windows 95 or NT 4.0, or a Macintosh computer,
read “Making PageManager Settings” on page 3-4.
3-2 Setting Up the Start Button
Making Windows Millennium Edition, 98, and
2000 Settings
This section explains how to make settings that control which
application opens when you press the scanner’s
Start button.
You can specify one application to open automatically when you
press the
Start button, or you can have a window open allowing
you to choose from a list of applications. Follow the steps below
to make these settings.
Note:
These settings do not apply to Windows 95 or NT 4.0, or to Macintosh
computers.
1. Click Start, point to Settings, and select Control Panel.
2. Double-click the Scanners and Cameras icon. The Scanners
and Cameras Properties dialog box appears.
Setting Up the Start Button 3-3
3. Select your scanner from the list of installed scanners and
cameras, click the Properties button, then click the Events tab.
4. In the Scanner events list, make sure Start Button is selected.
5. To have an application open automatically when you press
the
Start button, select the check box next to that application
in the Send to this application window, and clear the check
boxes of all the other applications.
To have your document scanned and sent to an application
with one press of the
Start button, select Presto!
PageManager for EPSON, complete the steps in this section,
then proceed to “Making PageManager Settings” on page 3-4.
If you want to choose from a list of applications when you
press the
Start button, select the check boxes of the
applications you want.
3-4 Setting Up the Start Button
Note:
Depending on the application, EPSON TWAIN Pro may also
open when you press the
Start button.
Some applications do not support linkage to scanners and
digital cameras. Linkage is available only with the applications
that appear in the Send to this application list.
6. To save your settings, click OK, then click OK again.
If you did not select Presto! PageManager for EPSON, or if you
selected multiple applications, close all applications and try
pressing the
Start button on the scanner to confirm that
everything is set up correctly.
If you selected Presto! PageManager for EPSON only, see the
next section to make settings for scanning and sending the
scanned document to a specified application.
Making PageManager Settings
This section explains how to set up Presto! PageManager for
EPSON to scan and send a document to a specified application
with one press of your scanner’s
Start button.
Note for Windows Millennium Edition, 98, and 2000 users:
Before setting up PageManager, make sure that your system is set to
automatically start up PageManager when you press the
Start
button. For instructions, see “Making Windows Millennium Edition,
98, and 2000 Settings” on page 3-2.
1. Start Presto! PageManager for EPSON.
Note:
If the EPSON TWAIN Pro main dialog box appears on your screen,
close it.
Setting Up the Start Button 3-5
2. From the File menu, select Scan Buttons Setting.
3. In the Scan Buttons Setting dialog box, click the Start Button
Setting tab.
4. In the Select target application window, click the icon of the
application or device to which you want to send scanned data.
Note:
If the application or device you want to select does not appear in the
Select target application window, you can add its icon to the
window. For instructions, see your PageManager documentation.
5. Make sure the Execute Scan Button automatically check box
is selected, then click OK.
The selected application or device is now assigned to the scanner’s
Start button. Close all applications and try pressing the Start
button on the scanner to confirm that everything is set up
correctly.
Options 4-1
Chapter 4
Options
Using the Transparency Unit
The optional Transparency Unit (B813183) makes it possible to
scan transparencies and slides. Once you install the Transparency
Unit, you can leave it in place even when you scan other types of
documents.
Unpacking the Transparency Unit
Make sure that all the items shown below are included and have
not been damaged during shipping. Contact your EPSON dealer
if any item is missing or damaged.
Transparency Unit
film holders
installation screws (2) reflective
document mat
4-2 Options
Removing the shipping screw
A shipping screw is installed on the Transparency Unit to prevent
damage during shipping. Be sure to use the following procedure
to remove this screw before attempting to use the unit.
1. Turn over the Transparency Unit so its glass side is facing up.
2. Remove the shipping screw as shown below.
3. Screw the shipping screw into the storage hole as shown.
Options 4-3
Note:
Before transporting the scanner, remove the Transparency Unit and
return the shipping screw to its original shipping hole. See
“Transporting the scanner and the Transparency Unit” on page 5-2 for
details.
Installing the Transparency Unit
Follow the steps below to install the Transparency Unit on the
scanner.
1. Make sure the scanner is turned off, and unplug the power
cord.
2. Remove the document cover from the scanner by lifting it
straight up on its back edge.
3. Slide the mounting slots on the Transparency Unit under the
two installation screws attached to the scanner.
4-4 Options
4. Insert the two installation screws provided with the
Transparency Unit into the holes as shown below, and then
tighten the screws with a coin.
5. Close the Transparency Unit.
6. Connect the Transparency Units connector to the option
connector on the scanner.
Options 4-5
Preparing transparencies for scanning
Four film holders for scanning various types of transparencies are
included with this unit.
For instructions on loading your transparencies into the film
holders and positioning them on the scanner, go to the section
listed below that matches the type of transparency you want to
load.
Note:
Be sure to wipe the Transparency Unit glass, the scanner’s document
table, and the narrow window near the mounting bracket with a soft
cloth before scanning transparencies.
For instructions on scanning normal paper documents, see
“Scanning normal reflective documents” on page 4-16.
35-mm film strips page 4-6
Mounted slides page 4-8
120/220 film page 4-10
4 × 5 inch film page 4-12
Non-standard film sizes page 4-15
4-6 Options
35-mm film strips
1. Place the 35-mm film strip holder on a flat surface, and
remove a strip cover.
2. Insert a strip of film in the film strip holder, making sure the
glossy (smooth) side of the film is facing down.
Options 4-7
3. Replace the strip cover that you removed in step 1. Repeat
steps 1 through 3 for all the film strips you scan.
4. Open the Transparency Unit, then place the film strip holder
on the document table and align it as shown below.
5. If the reflective document mat is installed on the
Transparency Unit, remove it, then close the Transparency
Unit.
Note:
Make sure the Transparency Unit is completely closed.
Otherwise an option error will occur and scanning will be
cancelled.
4-8 Options
When scanning transparencies, store the reflective document
mat in the Transparency Unit pocket.
Caution:
Do not put anything but the reflective document mat into
the Transparency Unit pocket.
You are now ready to scan the film strips using your scanner
software.
Note:
Make sure to select TPU for Neg. film or TPU for Pos. film as the
Document Source setting in EPSON TWAIN Pro.
When TPU for Neg. film or TPU for Pos. film is selected as the
Document Source setting, the focus position is automatically set to
2.5 to accommodate the use of the film holders.
Mounted slides
1. Load slides in the 35-mm slide holder face down, as shown
below. Repeat this step for all the slides you scan.
Options 4-9
2. Open the Transparency Unit, then place the slide holder on
the document table. Align the slide holder as shown below.
3. If the reflective document mat is installed on the
Transparency Unit, remove it, then close the Transparency
Unit.
Note:
Make sure the Transparency Unit is completely closed.
Otherwise an option error will occur and scanning will be
cancelled.
When scanning transparencies, store the reflective document
mat in the Transparency Unit pocket.
Caution:
Do not put anything but the reflective document mat into
the Transparency Unit pocket.
4-10 Options
You are now ready to scan the slides using your scanner software.
Note:
Make sure to select TPU for Neg. film or TPU for Pos. film as the
Document Source setting in EPSON TWAIN Pro.
When TPU for Neg. film or TPU for Pos. film is selected as the
Document Source setting, the focus position is automatically set to
2.5 to accommodate the use of the film holders.
120/220 film
1. Place the 120/220 film holder on a flat surface, and open a
strip cover.
2. Insert the film in the film holder, making sure the glossy
(smooth) side of the film is facing down.
Options 4-11
3. Close the cover. Repeat steps 1 through 3 for all the film you
scan.
4. Open the Transparency Unit, then place the film holder on the
document table and align it as shown below.
5. If the reflective document mat is installed on the
Transparency Unit, remove it, then close the Transparency
Unit.
Note:
Make sure the Transparency Unit is completely closed.
Otherwise an option error will occur and scanning will be
cancelled.
4-12 Options
When scanning transparencies, store the reflective document
mat in the Transparency Unit pocket.
Caution:
Do not put anything but the reflective document mat into
the Transparency Unit pocket.
You are now ready to scan the film using your scanner software.
Note:
Make sure to select TPU for Neg. film or TPU for Pos. film as the
Document Source setting in EPSON TWAIN Pro.
When TPU for Neg. film or TPU for Pos. film is selected as the
Document Source setting, the focus position is automatically set to
2.5 to accommodate the use of the film holders.
4 x 5 inch film
1. Place the 4 × 5 inch film holder on a flat surface, and open a
cover.
Options 4-13
2. Insert the film in the film holder, making sure the glossy
(smooth) side of the film is facing down.
3. Close the cover. Repeat steps 1 through 3 for all the film you
scan.
4-14 Options
4. Open the Transparency Unit, then place the film holder on the
document table and align it as shown below.
5. If the reflective document mat is installed on the
Transparency Unit, remove it, then close the Transparency
Unit.
Note:
Make sure the Transparency Unit is completely closed.
Otherwise an option error will occur and scanning will be
cancelled.
When scanning transparencies, store the reflective document
mat in the Transparency Unit pocket.
Caution:
Do not put anything but the reflective document mat into
the Transparency Unit pocket.
Options 4-15
You are now ready to scan the film using your scanner software.
Note:
Make sure to select TPU for Neg. film or TPU for Pos. film as the
Document Source setting in EPSON TWAIN Pro.
When TPU for Neg. film or TPU for Pos. film is selected as the
Document Source setting, the focus position is automatically set to
2.5 to accommodate the use of the film holders.
Non-standard film sizes
1. Open the Transparency Unit, then place the film directly onto
the scanner’s glass document table, making sure the glossy
(smooth) side of the film is facing down.
Note:
An area approximately 1.6 mm from the horizontal and 1 mm from
the vertical edges of the document table glass will not be scanned.
2. If the reflective document mat is installed on the
Transparency Unit, remove it, then close the Transparency
Unit.
4-16 Options
Note:
Make sure the Transparency Unit is completely closed.
Otherwise an option error will occur and scanning will be
cancelled.
When scanning transparencies, store the reflective document
mat in the Transparency Unit pocket.
Caution:
Do not put anything but the reflective document mat into
the Transparency Unit pocket.
You are now ready to scan the film using your scanner software.
Note:
When placing film directly on the document table, make sure to select
TPU for Neg. film or TPU for Pos. film as the Document Source
setting, and 0.0 as the focus position in EPSON TWAIN Pro.
Scanning normal reflective documents
When scanning normal reflective documents, you should always
use the reflective document mat included with the Transparency
Unit. Also, make sure you remove the transparency guide from
the scanner’s document table.
Install the reflective document mat as described below.
1. Open the Transparency Unit.
Options 4-17
2. Insert the tabs on the reflective paper document mat into the
slots on the Transparency Unit and slide the mat into place.
3. Position the reflective document and close the unit.
4-18 Options
To remove the reflective document mat, slide it up and out of the
slots on the Transparency Unit. Be sure to store the reflective
document mat in the Transparency Unit pocket when not in use.
Caution:
Do not put anything but the reflective document mat into the
Transparency Unit pocket.
Using the Automatic Document Feeder
The Automatic Document Feeder (B813163) allows you to
automatically load multiple-page documents into your scanner.
This document feeder is particularly useful for OCR (optical
character recognition) scanning, or for creating an image
database.
Options 4-19
Unpacking the Automatic Document Feeder
When you unpack your Automatic Document Feeder, make sure
you have all the parts shown below and that none are damaged.
If you find any missing or damaged items, contact your EPSON
dealer immediately.
Installing the Automatic Document Feeder
Follow the steps below to install the Automatic Document Feeder
on your EPSON scanner.
1. Make sure your scanner is turned off, and unplug the
scanner’s power cord.
2. Remove your scanners document cover by holding the cover
behind the hinge and lifting the back of the cover straight up.
Automatic Document Feeder
installation
screws
4-20 Options
3. The scanner comes with two installation screws attached;
slide the mounting slots on the Automatic Document Feeder
forward, underneath these two screws. Do not remove the
protective materials from the Automatic Document Feeder’s
mounting hardware yet.
Options 4-21
4. Insert the installation screws included with your Automatic
Document Feeder into the holes in the scanner, then use a coin
to tighten them.
5. Remove the protective materials from the Automatic
Document Feeders mounting hardware.
6. Close the Automatic Document Feeder.
7. Attach the Automatic Document Feeder’s connector to the
scanner’s option interface.
4-22 Options
Loading documents into the Automatic
Document Feeder
Your Automatic Document Feeder can automatically load up to
30 sheets of the following paper sizes (based on a paper weight of
64 g/m
2
and a stack thickness of 6.0 mm or less):
Follow the steps below to load documents into the Automatic
Document Feeder.
1. Slide the left edge guide all the way to the left and place your
document in the feeder tray. Then move the right edge guide
so it is flush with the right edge of your document.
Checks 76
×
127 mm
B5 182
×
257 mm
A4 210
×
297 mm
Letter 215.9
×
279.4 mm
Legal 215.9
×
355.6 mm
Options 4-23
Note:
For checks, move the left edge guide to the center until it stops, then
place your checks in the tray and move the right edge flush against
them.
2. Insert the document stack into the Automatic Document
Feeder until it meets resistance. Make sure that the side you
want to scan is facing up.
Note:
To avoid paper jams, be sure to remove all documents from the
Document Table before scanning.
Documents are fed into the lower tray after scanning is finished.
4-24 Options
Loading documents manually
You can load documents manually even when the Automatic
Document Feeder is installed.
To load manually, lift the Automatic Document Feeder and place
the document on the scanning table. Then lower the Automatic
Document Feeder and scan the document.
Note:
Opening the Automatic Document Feeder or its cover while it is
operating results in an option error and paper feeding stops.
Always close the Automatic Document Feeder and its cover before
using it.
Scanning from the Automatic Document Feeder
The scanning instructions are divided into two sections; read
“Scanning the full document area” on page 4-24 to scan an entire
document or image, or read “Scanning only part of the document
area” on page 4-25 to scan only a certain part of an image or
document.
Scanning the full document area
You do not need to use the preview feature when scanning a full
document or image. The scanner automatically find and scans the
whole image. Follow the steps below to scan an image or
document.
Note:
The steps below describe the scanning procedure when using Presto!
PageManager for EPSON. The procedure may vary slightly when using
another application.
Options 4-25
1. Load the document in the Automatic Document Feeder as
described in “Loading documents into the Automatic
Document Feeder” on page 4-22.
2. Start Presto! PageManager for EPSON.
3. Select EPSON TWAIN Pro from the File menu’s Select Source
option if necessary.
4. Select Acquire from the File menu. The EPSON TWAIN Pro
main dialog box appears.
5. Select Auto Document Feeder from the Document Source list,
then make appropriate settings for the type of document you
are scanning.
6. Click Scan. The Auto Document Feeder feeds the first sheet
and scanning begins.
After the entire document is scanned, a window with thumbnail
images will appear in PageManager. In this window you can
select and change the orientation of the scanned images.
Scanning only part of the document area
To scan just a part of an image, follow the steps below.
Note:
The steps below describe the scanning procedure when using Presto!
PageManager for EPSON. The procedure may vary slightly when using
another application.
1. Load only the first page of the document in the Automatic
Document Feeder as described in “Loading documents into
the Automatic Document Feeder” on page 4-22.
4-26 Options
Note:
Only set one page of the document at this time. If you set multiple
pages at this time, the second page will be fed right after the first
page is scanned and may become stuck in the middle of the document
path as if the paper is jammed. In this case, you have to remove the
second page from the document path and load it again.
2. Start Presto! PageManager for EPSON and select Acquire
from the File menu. EPSON TWAIN Pro’s main dialog box
appears.
3. Click the Preview button. The first sheet of the document is
fed into the scanner, then ejected after being previewed.
4. Draw a marquee around the part of the image you want to
scan by dragging the mouse pointer over that area.
5. Load the ejected first page and all remaining pages of the
document in the Automatic Document Feeder.
6. Make EPSON TWAIN Pro settings as needed for your
document type and click the Scan button. The Auto
Document Feeder feeds the first sheet and scanning begins.
After scanning the entire stack of documents, a window with
thumbnail images appears in PageManager. In this window you
can select and change the orientation of the scanned images.
Document specifications
Size: Width: 3 to 8.5 inches (76 to 215.9 mm)
Length: 5 to 14 inches (127 to 355.6 mm)
Thickness: 0.07 to 0.16 mm
Weight: 52.3 to 127.9 g/m²
Options 4-27
Document conditions
Make sure of the following before feeding a document:
Ink on the document is dry.
The document has no holes, is not ripped or wrinkled, and
has nothing attached to it.
The document has no staples or other objects attached that
might damage the feeder mechanism.
The document has no folds closer than 8 mm from its edge.
The document is neither bound nor a multipart form.
The document has no rear carbon coating.
The document has no cut out areas.
Other precautions
Do not feed photographic sheets or particularly valuable original
artwork into this Automatic Document Feeder; misfeeding a
document may result in accidental wrinkling or damage.
When you are scanning high-quality color or halftone documents,
it is recommended you open the Automatic Document Feeder and
scan documents individually.
Paper quality: High-quality bond or thermal paper
Document type: Documents printed with impact printers,
laser printers, or facsimile machines
4-28 Options
Using the IEEE 1394 Scanner I/F Card
The optional IEEE 1394 Scanner I/F Card (B808343) offers high-
speed data transfer and flexible connectivity for your scanner. It
supports a peak data transfer rate of 400 Mbps. You can connect
or disconnect the interface cables without having to turn off the
scanner or your computer. You can connect multiple IEEE 1394
devices simultaneously in either a daisy-chain or tree
configuration.
Options 4-29
System requirements
For Windows
For Macintosh
Installing the IEEE 1394 Scanner I/F Card in your
scanner
To use your scanner as an IEEE 1394 device, you need to install
the optional IEEE 1394 Scanner I/F Card.
1. Turn off the scanner. Unplug any power cords, then
disconnect all cables from the back panel of your scanner.
Hardware: PC with built-in IEEE 1394 port,
or PC with an IEEE 1394 PCI board installed
OS: Microsoft
®
Windows
®
Millennium Edition or
2000
Hardware: Macintosh equipped with built-in IEEE 1394
(FireWire) port, or with an IEEE 1394 (FireWire)
PCI card, supported by Apple
®
Computer.
OS: Mac OS 8.6 with FireWire 2.1 or later.
4-30 Options
2. Use a cross-head screwdriver to remove the two screws
securing the shield plate to the optional interface slot; then
remove the plate. Be sure to keep both screws; you may need
to use them again if you re-install the shield plate.
Caution:
Static electricity can damage electronic components.
Discharge static electricity by touching the metal frame of
your scanner before handling the interface board.
3. Insert the Scanner I/F Card along the side guide rails into the
expansion slot in the optional interface slot.
Options 4-31
4. Secure it with the retaining screws.
5. Reconnect all cables.
Understanding IEEE 1394 connections
The Scanner I/F Card is equipped with two cable connectors. One
is used to connect the card to the computer, and the other is used
to connect other IEEE 1394 devices in a daisy chain or tree
configuration. Use the cable supplied when making the
connection. The cable can be connected without switching off the
power supply to the computer or the scanner because it complies
with the IEEE 1394 standard. Cables can be connected whether
the scanner or computer are on or off.
Caution:
Do not connect or disconnect IEEE 1394 cables when the scanner
is in use.
Connecting the scanner
To connect the scanner to your computer or other IEEE 1394
device:
4-32 Options
1. Connect one end of the cable to any available IEEE 1394 port
on the Scanner I/F Card.
2. Connect the other end of the cable to the IEEE 1394 port on
your computer. If other IEEE 1394 devices are already
connected to the computer’s IEEE 1394 port, connect the
scanner to an available IEEE 1394 port on the last device in
the chain.
Note:
The cable supplied with the IEEE 1394 Scanner I/F Card has 2 six
pin connectors at each end. If IEEE 1394 devices with four pin
connectors are used in a daisy chain or tree, you will need to use a
6:4 converter cable.
Maintenance and Troubleshooting 5-1
Chapter 5
Maintenance and Troubleshooting
Maintenance
Cleaning the scanner
To keep your scanner operating at its best, you should clean it
periodically, as described below.
1. Unplug the power cord.
2. Clean the outer case with mild detergent and water.
3. If the glass of the document table gets dirty, clean it with a
soft dry cloth. If the glass is stained with grease or some other
hard-to-remove material, use a small amount of glass cleaner
and a soft cloth to remove it. Wipe off all remaining liquid.
Make sure that no dust builds up on the glass of the document
table. Dust can cause spots in your scanned image.
5-2 Maintenance and Troubleshooting
Caution:
Be careful not to scratch or damage the glass of the document
table, and do not use a hard or abrasive brush to clean it. A
damaged glass surface can decrease the scanning quality.
Never use alcohol, thinner, or corrosive solvent to clean the
scanner. These chemicals can damage the scanner
components as well as the case.
Be careful not to spill liquid into the scanner mechanism or
electronic components. This could permanently damage the
mechanism and circuitry.
Do not spray lubricants inside the scanner.
Never open the scanner case.
Replacing the fluorescent lamp
The luminosity of the fluorescent lamp declines over time. If the
lamp breaks or becomes too dim to operate normally, the scanner
stops working and both the READY and ERROR lights rapidly
flash. When this happens, the lamp assembly must be replaced.
For details, contact your dealer.
Caution:
Never open the case of the scanner. If you think repairs or
adjustments are necessary, consult your dealer.
Transporting the scanner and the Transparency
Unit
When transporting the scanner or the Transparency Unit over a
long distance, or when storing them for an extended period, you
need to lock the scanner’s carriage and the Transparency Unit’s
lamp assembly to prevent damage. Follow the procedures below.
Maintenance and Troubleshooting 5-3
Preparing the scanner for transportation
1. Make sure the transportation lock lever is in the UNLOCK
position.
2. Align the SCSI ID rotary switch with ”.
3. Turn on the scanner.
4. After the carriage moves to the back of the scanner, slide the
transportation lock lever to the LOCK position.
Preparing the optional Transparency Unit for transportation
1. With the Transparency Unit attached, turn on the scanner and
wait until the unit’s lamp assembly moves to its home
position. Then turn off the scanner and remove the
Transparency Unit.
2. Raise the front of the Transparency Unit, hold it upright, and
gently shake it up and down once so that the lamp assembly
slides down toward the back of the unit. Wait until the lamp
assembly comes to rest.
3. Install the shipping screw in its original shipping hole.
5-4 Maintenance and Troubleshooting
Problems and Solutions
Most problems you encounter while operating your scanner and
software have simple solutions. This section helps you identify
the cause of the problem and provides you with solutions. It is
divided into the following categories:
“Error indicators” on page 5-4
“Scanner operation problems” on page 5-6
“Quality problems” on page 5-14
“Software setup problems” on page 5-19
Read the appropriate section to find your problem; then follow
the recommended steps.
If you cannot solve a problem after reading and following the
information in this section, contact your dealer or a qualified
customer support person for assistance. For information on
contacting customer support in your area, see “Contacting
Customer Support” on page 5-26.
Error indicators
When an error occurs, the scanner stops operating and the
ERROR and READY lights indicate the error type as described
below.
ERROR Light READY Light Error Type
On On Command error
Flashing Off Interface error
Flashing Flashing Fatal error
Off Off Option error
Maintenance and Troubleshooting 5-5
Command error
The scanner has received incorrect commands from your
scanning software.
When this error occurs, try to rescan the document. The scanner
returns to normal when it receives correct commands. Normally
you do not need to reset the scanner when this type of error
occurs.
Interface error
The interface setup is wrong or the scanner is not properly
connected to the computer.
When this error occurs, check the interface connection and then
push the
operate button to turn the scanner off and then back
on again to reset it.
Fatal error
This type of error indicates one of the following problems:
The fluorescent lamp needs to be replaced.
The transportation lock lever is not released.
The scanner is malfunctioning.
Check that the transportation lock lever is released and check any
installed options for problems. Next, turn the scanner off and then
back on again. If this does not solve the problem, consult your
dealer.
Option error
This indicates a problem with an installed option, such as a paper
jam, an empty document feeder, or an open cover.
Check the option and correct the cause of the problem.
5-6 Maintenance and Troubleshooting
Scanner operation problems
Problems you may have while using the scanner often involve the
operation of your software and computer. Operation problems
usually occur because of:
Incorrect setup of the interface
(See “Setting Up the Scanner” on page 2-1 of the online Setup
Guide.)
Incorrect setup of your computer or software
(See the online Setup Guide.)
Incorrect operation of your software
(See “Understanding EPSON TWAIN Pro Features” on page
2-1 and “Optimizing Scanning” on page 1-1 in this guide. Also
see Chapter 4 of the online Setup Guide, “Using Your Scanner”
on page 4-1.)
Also see the documentation that came with your computer and
printer for possible solutions.
The READY light does not come on.
Press the operate button to turn on the scanner.
Make sure the power cord is connected to the scanner and is
plugged into a power outlet.
The scanner does not scan.
Wait until the READY light stops flashing and remains on
(ready for scanning).
Make sure your interface port and software settings are
correct. Also make sure that your computer’s interface board
is installed properly.
Maintenance and Troubleshooting 5-7
For SCSI interface users, make sure the scanner’s SCSI ID and
terminator are set correctly. See your online Setup Guide for
details on making these settings.
For SCSI interface users, if you have other expansion boards
in your computer, make sure that their interrupt settings are
not interfering with your SCSI board. See your computer’s
documentation for details.
For USB interface users, try connecting the scanner directly to
the computer’s USB port, or use an EPSON USB cable.
For USB interface users, try connecting your scanner to a
different port on your hub, or to a different hub.
For Macintosh and IEEE 1394 interface users, make sure that
the following Extensions are selected in the Extensions
Manager: EPSON FW Scanner Enabler; EPSON FW Scanner
Expert; and EPSON FW ScannerLib.
The scanner software does not work properly.
Make sure your software is installed correctly.
For Windows Millennium Edition, 98, and 2000 users, check
if your scanner is listed more than once in the Scanners and
Cameras Properties dialog box. To view the dialog box, click
Start, point to Settings, click Control Panel, then double-click
the Scanners and Cameras icon.
If EPSON Expression1680 appears more than once in the list
of installed devices, follow the instructions in “Uninstalling
the Scanner Software for Windows” in Chapter 3 of the online
Setup Guide to remove it completely from the dialog box. Then
follow the instructions in “Installing EPSON TWAIN Pro for
Windows” in Chapter 3 of the online Setup Guide to reinstall
EPSON TWAIN Pro.
Make sure your computer meets the memory and other
system requirements specified for the software you are using.
5-8 Maintenance and Troubleshooting
Make sure the computer has enough memory for your
software. If the computer does not have enough memory
available, see your software and computer documentation for
information on adding more memory.
The scanner cannot be selected or is listed as unavailable
in Windows.
Turn off the scanner and PC, and check that they are
connected properly.
Make sure that a scanner supported by EPSON Scan Server
and EPSON TWAIN Pro Network is connected to the scanner
server PC.
For Windows Millennium Edition, 98, and 2000, make sure
EPSON TWAIN Pro is installed on the scanner server PC (the
PC which is connected to the EPSON scanner).
If you want to scan using the scanner server PC, make sure
EPSON TWAIN Pro Network is installed on the PC.
When connected using the SCSI interface, change the
scanner’s SCSI ID number to one that is not being used by any
other SCSI device.
Note for Windows 98 users:
Depending on your Windows 98 version, you may have to uninstall
the scanner from your system before changing the SCSI ID number.
For instructions, see “When changing the ID number or replacing
the SCSI board in Windows 98” in Chapter 2 of the online Setup
Guide.
Check the SCSI connection sequence and make sure the
scanner’s terminator switch is set correctly. The terminator
switch should be set to ON when the scanner is connected
directly to the computer, or when it is the last device in a daisy
chain. For more information on setting the terminator switch,
see your online Setup Guide.
Maintenance and Troubleshooting 5-9
Scanning does not start by pressing the Start button.
For Windows 95, NT 4.0, and Macintosh users, make sure the
Scanner Monitor software is running.
For Windows Millennium Edition, 98, and 2000 users, click
the Events tab in your scanner’s Properties dialog box and
make sure the Disable device events check box is clear. Also
make sure that the Start Button is selected as the Scanner
events option, and that at least one application in the Send to
this application box is selected. See “Setting Up the Start
Button” on page 3-1 for details.
EPSON TWAIN Pro does not start.
Turn off the scanner and computer and check that they are
connected properly.
Make sure the interface cable meets the requirements of your
interface board. See the documentation that came with the
interface board.
Make sure the interface board is installed correctly.
When connected using the SCSI interface, make sure to turn
on the scanner before turning on the computer.
Make sure that EPSON TWAIN Pro is selected in your
application.
EPSON Scan Server does not start.
Turn off the scanner and computer, and check that they are
connected properly.
Make sure the interface cable meets the requirements of your
interface board. See the documentation that came with the
interface board.
Make sure the interface board is installed correctly.
5-10 Maintenance and Troubleshooting
When connected using the SCSI interface, make sure to turn
on the scanner and then your computer.
Make sure that a scanner supported by EPSON Scan Server
and EPSON TWAIN Pro is connected to the scanner server
PC.
Make sure EPSON TWAIN Pro Network is installed on the
scanner server PC (the PC which is connected to the EPSON
scanner).
EPSON TWAIN Pro Network does not start.
When connected using the SCSI interface, turn on the scanner
first, then turn on the scanner server PC.
Make sure that TCP/IP is selected as the networking protocol.
If you are not sure how to select the networking protocol,
consult your network administrator.
Make sure that the cables which connect the EPSON scanner,
the scanner server PC and the client PC meet system
requirements and are properly connected.
Make sure the interface card is installed correctly.
Enter the correct IP address in the EPSON TWAIN Pro
Network setup dialog box.
To use EPSON scanners in a network environment, you need
to assign IP addresses to the scanner server PC and client PCs.
If EPSON scanners are installed in an internal LAN (Local
Area Network), that is, isolated from the Internet, the
following IP addresses can be assigned to the scanner server
PC.
Maintenance and Troubleshooting 5-11
Note:
If you use IP addresses from these ranges, you will not be able to
connect this LAN to the Internet in the future, otherwise there will
be IP address conflicts.
10.0.0.0 - 10.255.255.255
172.16.0.0 - 172.31.255.255
192.168.0.0 - 192.168.255.255
If you plan to use a scanner server PC in a network connected
to the Internet, you should acquire a formal IP address for the
scanner server PC from the Internet organization of your
country.
Make sure one of the naming services such as DNS, WINS, or
LMHOSTS is used in your network. Otherwise use an IP
address to specify the EPSON TWAIN Pro setup dialog box.
The Auto Document Feeder or Transparency Unit cannot be
selected.
Make sure the optional equipment is installed correctly. For
installation instructions, see “Using the Automatic Document
Feeder” on page 4-18 or “Using the Transparency Unit” on page
4-1.
You cannot scan from the Automatic Document Feeder.
Make sure Auto Document Feeder is selected as the
Document Source in EPSON TWAIN Pro.
If the Automatic Document Feeder is open, close it and try
again. If the Automatic Document Feeder is opened while
scanning, remove any jammed paper, and reload any
document which has not yet been scanned, then restart
EPSON TWAIN Pro.
Take the jammed paper out and reload the document, then
restart EPSON TWAIN Pro.
5-12 Maintenance and Troubleshooting
Paper jams in the Automatic Document Feeder.
Follow these steps to remove the jammed paper.
1. Open the Automatic Document Feeder’s cover.
Maintenance and Troubleshooting 5-13
2. Pull forward on the jam-release lever and slowly pull the
jammed paper out of the feeder mechanism. (Be careful not
to pull too hard; the paper may tear, making it more difficult
to remove.)
3. Close the document feeder cover and make sure the READY
light is on and not flashing, and the ERROR light is off.
The scanner does not scan in Windows 98 after changing
the SCSI ID number or the SCSI board.
Depending on your Windows 98 version, you may have to
uninstall the scanner from your system before changing the SCSI
ID number or replacing the SCSI board. For instructions, see
“When changing the ID number or replacing the SCSI board in
Windows 98” in chapter 2 of the online Setup Guide.
5-14 Maintenance and Troubleshooting
Quality problems
The image is distorted or blurred.
Make sure the document is uniformly flat against the
document table.
Caution:
Do not place heavy objects on the document table.
Make sure you do not accidentally move the document
during scanning.
Make sure the scanner is on a flat, stable surface.
A document that is very thick or warped at the edges can
cause distortion or discoloration. Cover the edges of the
document with paper to block outside light.
The image is faint.
Adjust the Exposure setting in EPSON TWAIN Pro.
Adjust the Gamma setting in EPSON TWAIN Pro.
Edges of the document are not scanned.
Position the document so the area you want to scan is within the
edge guide limits of the document table. Note that an area 1.6 mm
from the horizontal guide and 1 mm from the vertical guide will
not be scanned.
The image is too dark.
Check the EPSON TWAIN Pro settings related to brightness
and contrast. See “Adjusting Brightness and Contrast” on
page 1-2 for details.
Maintenance and Troubleshooting 5-15
Check the brightness and contrast settings of your computer
display.
Image is dark, with little or no detail.
Select Screen/Web as the Destination setting in EPSON TWAIN
Pro. For details, see “Selecting a Destination” on page 2-9.
Note:
Though selecting a printer may cause on-screen colors to differ from the
colors of the original, the colors will be reproduced correctly when
printed.
You cannot scan an image or you only get a few dots for the
scanned image.
Make sure you have placed a document on the document
table.
When OCR is selected as the Image Type, adjust the
Threshold setting in one of the following ways:
Click the Image Type button and change the B/W Option
from Text Enhancement Technology to None. Then, in the
Image Controls dialog box, adjust the Threshold setting.
Change OCR to Line Art, then change the Threshold setting
in the Image Control dialog box. For details on the Threshold
setting, see “Image Controls” on page 2-38.
Character recognition is poor.
Make sure OCR is selected as the Image Type setting.
Try adjusting the Threshold setting in the Image Controls
dialog box.
Select Text Enhancement Technology from the B/W Option
in the Image Type dialog box. This helps to eliminate
background noise.
5-16 Maintenance and Troubleshooting
Straight lines in the image come out jagged.
Make sure the document orientation is perfectly straight on the
document table. Align vertical and horizontal lines with the scales
at the top and side of the document table.
The image does not look the same as the original.
Make sure the image settings of your software are appropriate
for the type of image you want to scan.
Try different image setting combinations in your scanner
software.
Your software may not have sufficient color matching and
color management features, or these components may not be
installed correctly. See the documentation that comes with
your software and computer.
If you are importing a scanned image file, make sure the file
format is one your software can read.
A line of dots is always missing from the scanned image.
If a line is missing on printouts only, the print head may be
damaged or defective. See your printer documentation.
If a line is missing on both screen images and printouts, the
scanner sensor may be damaged or defective. Contact your
dealer.
A line of dots always appears in the scanned image.
Wipe the scanner table glass with a soft cloth to remove any dirt.
Moiré (cross hatch) patterns appear in the scanned image.
Select the 24-bit Color De-screening setting in the Image Type
list or select On as the De-screening option in the Image Type
dialog box.
Maintenance and Troubleshooting 5-17
Place a transparent sheet between the document and
document table to defocus the image.
Move or angle the document slightly on the document table.
Select Off from the Unsharp Mask list in the Destination dialog
box.
Make the image size slightly smaller.
Change the focus setting.
Colors differ from the original.
Make sure the Image Type and Destination settings are
correct. To change these settings, see “Selecting an Image
Type” on page 2-4 and “Selecting a Destination” on page 2-9.
When using the Transparency Unit, make sure the opening
near the hinges on the document table is uncovered, and that
the Transparency Unit is closed when scanning.
Monitor colors
Check the color matching and color management capabilities
of your computer, display adapter, and software. Some
computers can change the color palette to adjust the colors on
your screen. See your software and hardware manuals for
details.
Exact color matching is very difficult. Check your software
and monitor documentation for information on color
matching and calibration.
5-18 Maintenance and Troubleshooting
Printed colors
Printed colors will not exactly match the colors on your monitor,
since printers and monitors use different color systems: monitors
use RGB (red, green, and blue), while printers typically use
CMYK (cyan, magenta, yellow, and black). Check your software
and printer documentation, or contact your printer company, for
information on color matching and calibration.
Scanned image is too large.
Select Screen/Web as the Destination setting. See “Selecting a
Destination” on page 2-9 for instructions. In some applications, if
you select a printer as the Destination setting, the print will appear
in the correct size even if the image is enlarged on the screen.
The printed image is larger or smaller than the original.
The image size settings of your software determine the size of the
printed image. Do not use the size of the monitor image to judge
the printed size.
Scanned images cannot be printed or come out garbled
when printed.
Make sure your printer is properly connected to the
computer, correctly set up, and maintained. See your printer
manual for details.
Check that your software is properly installed. For installation
instructions, see “Installing the Software” in Chapter 3 of your
online Setup Guide.
The colors of negative film images look strange when
previewed.
Make sure the Document Source setting is TPU for Neg. Film.
Maintenance and Troubleshooting 5-19
The dark area around the film, such as the frame of the film
holder, is perceived as white, which alters the exposure of the
scanning area and causes scans to appear darker. To view the
correct color, click and drag the mouse over an area, and then
click the Zoom button in the Preview window.
Software setup problems
You cannot install EPSON TWAIN Pro.
Check if your computer and operating system meet the
system requirements listed in “Installing the Software” on
page 3-1 of the online Setup Guide.
Make sure your computer has enough memory to run the
application.
You cannot install EPSON TWAIN Pro Network and/or
EPSON Scan Server.
Check that both your computer and operating system match the
system requirements listed in “Installing the Software” on page
3-1 of the online Setup Guide.
The Scanner Status does not indicate “Device Ready” after
you click Test in the EPSON TWAIN Pro dialog box or the
Scanner’s Properties dialog box (Windows Millennium
Edition, 98, and 2000) in the Control Panel.
Turn off the scanner and computer and check that they are
connected properly.
Make sure the interface cable meets the requirements of your
interface board. See the documentation that came with the
interface board.
Make sure the interface board is installed correctly.
5-20 Maintenance and Troubleshooting
When connected using the SCSI interface, make sure to turn
on the scanner and then your computer.
Make sure the SCSI driver is properly installed.
Change the scanner’s SCSI ID number to one that is not being
used by any other SCSI device.
Note for Windows 98 users:
Depending on your Windows 98 version, you may have to uninstall
the scanner from your system before changing the SCSI ID number.
For instructions, see “When changing the ID number or replacing
the SCSI board in Windows 98” in Chapter 2 of the online Setup
Guide.
Check the SCSI connection sequence and make sure the
scanner’s terminator switch is set correctly. The terminator
switch should be set to ON when the scanner is connected
directly to the computer, or when it is the last device in a daisy
chain. For more information on setting the terminator switch,
see your online Setup Guide.
Recovering from Scanner Software
Installation Problems in Windows 98, 2000,
and Millennium Edition
If you canceled the Plug and Play driver installation before the
procedure was completed, EPSON TWAIN Pro may be
incorrectly installed.
Follow the steps below to check the installation.
1. Turn on your scanner and then your computer. Plug the
interface cable into your scanner and the computer.
2. Right-click the My computer icon on your desktop, then click
Properties.
Maintenance and Troubleshooting 5-21
3. In Windows Millennium Edition and 98, click the Device
Manager tab. In Windows 2000, click the Hardware tab, then
click the Device Manager button.
If EPSON TWAIN Pro is correctly installed, EPSON
Expression1680 should appear under Imaging Device when
you click the plus (+) sign next to Imaging Device.
If EPSON TWAIN Pro is not correctly installed, an
exclamation mark (!) will appear in front of EPSON
Expression1680 under Imaging Device, or EPSON
Expression1680 will appear under Other devices with a
question mark (?), as shown in the illustrations below. Follow
the instructions below to reinstall the driver.
If an exclamation mark (!) appears beside EPSON
Expression1680 under Imaging Device
Note:
Make sure your scanner is on and connected to your computer. If your
scanner is off or not connected to your computer, you cannot reinstall
the driver properly.
5-22 Maintenance and Troubleshooting
1. If an exclamation mark (!) appears beside EPSON
Expression1680 under Imaging Device, click EPSON
Expression1680. Then click Remove.
2. The Confirm Device Removal dialog box appears. Click OK.
3. Click Close to close the System Properties window.
4. Make sure your scanner is on, then restart your computer.
5. When the following dialog box appears, insert the scanner
software CD-ROM in the CD-ROM drive, then click OK.
Maintenance and Troubleshooting 5-23
If the following dialog appears, browse the CD-ROM for
EPSON\(your preferred language)\(your Windows version),
as shown below, then click OK.
If EPSON Expression1680 appears under Other devices
Note:
Make sure your scanner is on and connected to your computer. If your
scanner is off or not connected to your computer, you cannot reinstall
the driver properly.
1. If EPSON Expression1680 appears under Other devices,
click EPSON Expression1680. Then click Remove.
2. The Confirm Device Removal dialog box appears. Click OK.
5-24 Maintenance and Troubleshooting
3. Click Close to close the System Properties window.
4. Make sure your scanner is on, then restart your computer.
5. The Add New Hardware Wizard dialog box appears. To
install the driver again, follow the instructions in “Installing
the Software” on page 3-1 of the online Setup Guide.
Sizing Up Your System
If you are not satisfied with the quality of the images on your
monitor or with the speed of image processing, you may want to
consider upgrading your system as described in this section.
While this section does not contain specific recommendations, it
describes various possibilities for improving your scanning
system. For further information, seek advice from your dealer or
an experienced scanner user.
RAM and hard disk size
Scanned images use much more memory than text files, so you
may need more RAM (Random Access Memory) in your
computer and a larger hard disk than you have used previously.
Accelerator boards
In addition to memory, processing speed is important because
large files take longer to process than small ones. Therefore, you
may want to add an accelerator board to your computer.
Maintenance and Troubleshooting 5-25
Video cards
A video card that is sufficient for text may not be good enough
for displaying graphic images, especially in color. If all your
scanned images look coarse on your monitor, you may want to
upgrade your video card. You will need 24-bit color, also called
true color or millions of colors, to make the highest quality image
reproductions.
Monitors
The resolution of your monitor affects the quality of the image
you see. Consider a high resolution monitor if you do precise color
work, but also be sure you have a high quality video card.
File compression software
Many different programs are available to make image files
smaller for storage or transmission. For example, some
compression software can store a 3 MB image file on a 1.44 MB
floppy disk, and compress images and restore them with no loss
of data or quality; others compress images more, but the restored
file is not exactly the same as the original. The difference between
the original and restored files is, however, almost unnoticeable.
5-26 Maintenance and Troubleshooting
Contacting Customer Support
If your EPSON product is not operating properly and you cannot
solve the problem using the troubleshooting information in your
product documentation, contact customer support services for
assistance or contact the dealer where you purchased your
product.
Customer support will be able to help you much more quickly if
you give them the following information.
Product serial number
(The serial number label is usually on the back of the product.)
Product model
Product software version
(Click About, Version Info, or similar button in the product
software.)
Brand and model of your computer
Your computer operating system name and version
Names and versions of the software applications you
normally use with your product
Technical Specifications A-1
Appendix A
Technical Specifications
Scanning
Scanner type: Flatbed, color
Photoelectric device: Color CCD line sensor
Effective pixels: 13600
×
18720 pixels at 1600 dpi, 100%
Document size: 216 mm
×
297 mm
A4 or US letter size
(The reading area can be specified from
your software.)
Scanning resolution: 1600 dpi (main scan)
3200 dpi with Micro Step (sub scan)
Output resolution: 50 dpi to 12800 dpi
(50 to 6400 dpi in 1 dpi increments, 12800
dpi performed with zoom function)
Color separation: RGB color filters on CCD
Reading sequence:
Monochrome One-pass scanning
Color page
sequence
Three-pass scanning (R, G, B)
(This sequence is not supported by EPSON
TWAIN Pro)
Color byte
sequence
One-pass scanning (R, G, B)
Color line
sequence
One-pass scanning (R, G, B)
Zoom: 50% to 200% in 1% increments
A-2 Technical Specifications
Image data: 16 bits per pixel per color internal
1 to 16 bits per pixel per color external
Brightness: 7 levels
Line Art settings: Fixed threshold
Text Enhancement Technology
(enable/disable selectable)
Halftoning process: Auto Area Segmentation
(enable/disable selectable)
3 halftoning modes (A, B, and C) and
4 dither patterns (A, B, C, and D) for
bi-level and quad-level data
(2 downloadable dither patterns)
Gamma correction: 2 types for CRT display
3 types for printer
1 type for user-defined
Color correction: 1 type for CRT display
3 types for printer output (available in color
byte sequence mode and color line sequence
mode)
1 type for user-defined
(Only user-defined Color correction is
available in EPSON TWAIN Pro)
Interface: SCSI (50 pin half pitch connectors), USB
(Type B Receptacle Connector), and
optional IEEE 1394 Serial Bus Interface
Light source: Xenon gas fluorescent lamp
Reliability: 100,000 cycles of carriage movement (main
unit MCBF)
Dimensions: Width: 332 mm
Depth: 562 mm
Height: 133 mm
Weight: Approx. 8.5 kg
Technical Specifications A-3
Electrical
Note:
Check the label on the back of the scanner for voltage information.
Environmental
Note:
Specifications are subject to change without notice.
Input voltage range AC 198 to 264 V
Rated frequency 50 to 60 Hz
Rated current 0.4 A
Power consumption Approx. 30 W (operating)
Approx. 10 W (standby)
Temperature:
Operation 5° C to 35° C
10° C to 32° C
when using the ADF
Storage -25° C to 60° C
Humidity:
Operation 10% to 80%, without condensation
Storage 10% to 85%, without condensation
Operating conditions: Ordinary office or home conditions.
Extreme dust should be avoided.
Operation under direct sunlight or near
a strong light source should be avoided.
A-4 Technical Specifications
Standards and Approvals
Low Voltage Directive 73/23/EEC
EMC Directive 89/336/EEC
EN 60950
EN 55022 Class B
EN 55024
EN 61000-3-2
EN 61000-3-3
Technical Specifications A-5
SCSI Interface
Interface type: ANSI X3T9.2/375R Revision 10L (SCSI 2)
Functions: BUS FREE phase
ARBITRATION phase
SELECTION/RESELECTION phase
COMMAND phase (Logical Unit Number is
fixed to 0 and command link function is not
supported.)
DATA phase
Data in phase
Data out phase
STATUS phase
MESSAGE phase
MESSAGE IN phase
MESSAGE OUT phase
ATTENTION condition
RESET condition
Logic level: TTL compatible
Electrical standard: ANSI X3T9.2/375R Revision 10L (SCSI 2)
ID setting: Selectable from 0 to 7
Terminator: Internal terminator selectable
(enable/disable)
Connector type: Two half pitch 50-pin connectors
Connector pin arrangement:
A-6 Technical Specifications
USB Interface
Configuration:
Interface type: Universal Serial Bus Specification
Revision 1.0
Element Description
Device Full Speed mode (12 Mbit/s)
Class: Vendor-specific
Vendor ID: 0x04B8 (SEIKO EPSON CORP.)
Product ID: 0x010E
Configuration Characteristics: Self-powered
Remote wake up feature: Not supported
Maximum power consumption from VBUS: 2 mA (5 V)
Interface No alternate setting
Number of endpoints used by this interface
(excluding endpoint 0): 2
Class: Vendor specific
Endpoint 1 Bulk IN transfer
Maximum data transfer size: 64 byte
Endpoint 2 Bulk OUT transfer
Maximum data transfer size: 64 byte
String
descriptor
Language ID: US English
1: iManufacturer: “EPSON”
2: iProduct: “Expression 1680”
Electrical standard: Full Speed mode (12 Mbit/s) of Universal
Serial Bus, Serial Bus Specification
Revision 1.0.
Connector type: One receptacle (Type B)
Technical Specifications A-7
Option Interface Connector
Initialization Methods
The scanner can be initialized (returned to a fixed set of
conditions) in the following ways:
SCSI
Interface type: For use with the optional Automatic
Document Feeder (B813163) and
Transparency Unit (B813183) only.
Electrical specifications:
Output voltage DC 21.6 to 26.4V
DC 4.75 to 5.25V
Output current 0.6A (24 V)
0.3A (5 V)
Hardware
initialization
The scanner is turned on.
The scanner receives a SCSI Reset signal from the SCSI
interface.
Software
initialization
Software sends the ESC @ (initialize the scanner)
command.
The scanner receives a SCSI Bus Device Message.
A-8 Technical Specifications
USB
Transparency Unit
Electrical Specifications:
Hardware
initialization
The scanner is turned on.
The USB cable is unplugged from the USB port on the
scanner.
Software
initialization
Software sends the ESC @ (initialize the scanner)
command.
The scanner receives a Bus Reset from the USB
interface.
Supplied voltage: DC 21.6 to 26.4 V DC 4.75 to 5.25 V
Rated current: 0.6 A 0.1 A
Environmental Conditions:
Temperature:
Operation
Storage
5° C to 35° C
-20° C to 60° C
Humidity:
Operation
Storage
10% to 80%, without condensation
10% to 85%, without condensation
Reliability: 100,000 cycles for the MCBF
Document:
Transparencies up to 8.5 × 11.7 cm
35-mm film strips
35-mm slides
120/220 (6 × 9 cm) film strips
4 × 5 inch film
Technical Specifications A-9
Automatic Document Feeder
Reflective up to 8.5
×
11.7 cm
Readable area: 216
×
297 mm
Dimensions: Width: 324 mm
Depth: 540 mm
Height: 92 mm
Weight: Approx. 5 kg
General specifications:
Loading orientation Face up
Ejection orientation Face down
Loading capacity 30 sheets (55 g paper, maximum total
thickness under 6 mm)
Electrical specifications:
Input voltage DC 22.8 to 25.2 V
DC 4.75 to 5.25 V
Input current 24 V: 0.6 A
5 V: 0.3 A
Environmental conditions:
Temperature:
Operation
Storage
10° C to 32° C
-20° C to 60° C
Humidity:
Operation
Storage
20% to 80%, without condensation
95% or less, without condensation
Reliability: 100,000 sheets (Load/Eject MCBF)
A-10 Technical Specifications
IEEE 1394 Scanner I/F Card
Connector pin signal layout:
Dimensions: Width: 310 mm
Depth: 528 mm
Height: 92 mm
Weight: Approx. 4.5 kg
Interface type: IEEE 1394-1995 compatible
Data transfer method: Half-duplex Data/Strobe differential
serial
Synchronization method: Clock synchronization with DS-Link
Encoding/decoding: DS-Link
Logic level: 3.3 V
Compatible connectors: IEEE 1394-1995 compatible
Pin number Signal name Function
1 VP Cable power supply
2 VG Cable ground
3 TPB*
Strobe during receipt, data during
transmission (differential pair)
4TPB
5 TPA*
Data during receipt, strobe during
transmission (differential pair)
6TPA
Technical Specifications A-11
Power class:
Power class code 100
No power supply from external sources
Fitted with a repeat function with bus power
Environmental Conditions:
Temperature:
Operation
Storage
5° to 35°C
-25° to 60°C
Humidity:
Operation
Storage
10% to 80%, without condensation
10% to 85%, without condensation
Glossary 1
Glossary
additive primary colors
The colors of red, green and blue (RGB) - which give the perception of white when
combined equally. These are the colors of the color system used by monitors and
scanners.
bi-level data
Image data that is composed of 1 bit per pixel. A pixel is represented by a single
bit of digital data that can be expressed as only 1 (light) or 0 (dark).
bit
Short for binary digit. The smallest unit of data in computer processing. A bit can
represent one of two values: on, represented by a 1, or off, represented by a 0.
pixel depth
The pixel depth refers to the number of bits in each pixel. Increasing the pixel
depth increases the amount of detail that will be reproduced in the scanned
image.
brightness
A scanner function to lighten or darken the output image data.
byte
A unit of information consisting of eight bits. A byte can represent a control code
or character.
carriage
A component of the scanner that contains the optical sensor and light source for
scanning.
color correction
A method of adjusting the color image data for a particular type of device so that
the reproduction results are as close as possible to the original colors.
color separation
A process of converting full-color images into a limited number of primary colors.
Additive primary colors (red, green, and blue) are used by the scanner, and the
subtractive primary colors (cyan, magenta, and yellow) plus black are used for
printing press separation.
daisy chain
A SCSI bus arrangement that allows several devices to be connected
simultaneously in a line to a single computer. See SCSI.
default
A set of values used when no other selections have been made. These are
sometimes called factory defaults if the original values have not been changed
since the scanner left the factory.
2 Glossary
dithering
A process in which software or an output device simulates continuous tones with
groups of dots.
document
The item, such as a sheet of paper or a book, that is placed on the document table
for the scanner to read.
dpi
Short for dots per inch. A unit of measurement for resolution. The higher the
value, the higher the resolution.
dropout color
A color the scanner does not recognize and ignores. You can select and deselect
dropout colors in the scanner software.
ESC/I
Abbreviation for EPSON Standard Code for Image scanners. A system of
commands that allows you to control image scanners from your software.
ESC/P
Abbreviation for EPSON Standard Code for Printers. A system of commands that
allows you to control printers from your software.
gamma
Gamma is a value that expresses the relationship between the input and output
of a device. By adjusting the gamma, the brightness of the mid-tones of an image
can be changed without affecting the shadows and highlights.
grayscale
Images represented with various shades of gray in addition to black and white.
halftoning
A method of reproducing images with patterns of dots to improve the quality of
the output.
home position
The position at the rear (nearest the cover hinge position) of the scanner where
the carriage rests before a scanning operation.
imagesetter
A device that uses computer files to produce high-resolution text and graphics
output on film or paper. These are usually found in service bureaus and printing
companies.
impact dot printer
A printer that transfers ink onto the paper by striking an ink ribbon with a number
of small pins.
ink jet printer
A printer that transfers ink onto the paper by spraying the ink through a number
of small nozzles.
Glossary 3
interface
A piece of hardware, a method, or a standard used for connection between or
among computer devices.
moiré
A moiré is a cross-hatch pattern that appears on scanned images when scanning
printed material. It is a result of interference that occurs due to the difference
between the pitches of the scanning and the halftone screens.
monochrome
Black and white images, or images represented only by the intensity of
luminosity.
OCR (optical character recognition)
The technology that allows computers to "read" text from physical objects. OCR
requires a graphical representation of text to interpret, which usually comes from
a scanned image.
pixel
Short for picture element. Each image is composed of a number of pixels. Pixels
are also counted in units of dots.
port
An interface channel through which data is transmitted between devices.
primary colors
Basic colors. See additive primary colors and subtractive primary colors.
resolution
Indication of how finely an image is resolved into pixels. Can be measured in
dots per inch (dpi), pixels per inch (ppi), or samples per inch (spi).
scan
An operation performed by the sensor and the carriage. The image is divided
into pixels by scanning.
scanning area
The physical size of the image that can be scanned by the scanner.
SCSI
Small Computer System Interface. This is one method used to connect your
computer to peripherals such as scanners, hard disk drives, CD-ROM drives, and
others.
SCSI ID
The numbers that all devices in a SCSI connection (see daisy chain) use to identify
each other. If the same ID number is used by two devices in the same daisy chain,
the devices cannot operate properly.
4 Glossary
subtractive primary colors
The colors of cyan, magenta, and yellow (CMY) which produce black when mixed
in certain amounts. In printing, black is often added to give more definition as
mixing of actual inks cannot produce pure black.
terminator
A device that stops electronic signals, and prevents them from proceeding or
returning to other devices. This is necessary to stop a signal from continuously
reflecting between devices.
threshold
A reference point that is used to determine whether data will be processed as
“on” or “off.” In the case of color image data, “on” means that a certain color will
appear in a pixel or dot, and “off” means that color will not appear there.
tone correction
A method of adjusting the tone curve so that the reproduction results on different
types of output devices have gradations similar to the original image.
tone curve
The graph that shows the contrast ratio between the input (original image) and
output (image data) in image processing.
unsharp mask
Originally a photographic process in which a sharply focussed and a slightly out-
of-focus image are combined to produce a sharper image. This process is
simulated by software to produce the same effect.
Index 1
Index
Numerics
120/220 film 4-10
12-bit Gray (HiFi)
2-4, 2-5
24-bit Color
5-25
24-bit Color (Std)
2-4
24-bit Color De-screening
2-4, 2-5
35 mm
film holder 4-6
film strips
4-6
mounted slides
4-8
36-bit Color (HiFi)
2-4
4 x 5 inch film
4-12
8-bit Gray (Std)
2-4, 2-5
A
A4 4-22
Accelerator board
5-24
Acquire
4-25
Active marquee
2-31
Adjusting
focus 2-43
Gamma
1-5
Gray Balance Intensity
1-7
Highlight
1-2
Saturation
1-8
Shadow
1-3
Applying preset tone curve
1-5
Approvals
A-4
Auto area segmentation
2-8
Auto exposure
2-37
Auto locate
2-34
Automatic Document Feeder
2-3, 4-18
close
4-21
document specifications
4-27
edge guide
4-22
installing
4-19
loading paper
4-22, 4-24
open
4-24
paper jams
5-12
paper sizes
4-22
precautions
4-27
scanning full document area
4-24
scanning part of document area
4-25
specifications
A-9
unpacking
4-19
B
B/W Option 2-6, 5-15
B5
4-22
Button
Auto exposure 2-37
Auto locate
2-34
Color Adjustment
2-42
Configuration
2-17
Delete (marquee)
2-33
Destination
2-11
Duplicate (marquee)
2-34
Focus
2-43
Image Controls
2-38
Image Type
2-6
locking image size
2-13, 2-15
Preview
2-26
Reset
2-43
Return to full preview
2-30
Return to zoom preview
2-30
Scan
2-25
Settings
2-16
Start
3-1, 3-2, 3-4
Tone Correction
2-40
Zoom preview
2-29
C
Carriage 5-2
Channels options
2-40, 2-41
Checks
4-22
Close
Automatic Document Feeder
4-21
Transparency Unit
4-17
2 Index
Coarse image 5-25
Color
millions of 5-25
true
5-25
Color adjustment
2-42
Color cast (tinting)
1-7
Color management system, Windows
2-20
ColorSync
2-20
Command error
5-5
Compression, file
5-25
Connector, option interface
4-4, 4-21
Contacting EPSON
5-26
Continuous Auto Exposure
2-20, 2-21
Copy & Fax
2-4, 2-5
Cord, power
4-3, 4-19, 4-29
Customer support
5-26
D
Darken 1-5
Deleting marquees
2-33
Densitometer, specifying number of
pixels 2-29
De-screening
2-6, 2-7
Destination
2-9
Destination Name
2-11
Dialog
Color Adjustment 2-42
Configuration
2-17
Destination
2-11
Image Controls
2-38
Image Type
2-6
Settings
2-16
Display
2-20
Document cover, remove
4-3, 4-19
Document source
2-3
Document Source setting
4-8, 4-10, 4-
12
, 4-15, 4-16, 4-25
Document specifications (Automatic
Document Feeder) 4-27
Document table
4-15, 4-16
Dropout
2-6, 2-8
Duplicating marquees
2-34
E
Edge guide (Automatic Document
Feeder)
4-22
EMC Directive
A-4
Environmental specifications
A-3
EPSON Stylus Printer (Fine)
2-10
EPSON Stylus Printer (Photo)
2-10
EPSON TWAIN Pro main dialog box
2-1
EPSON, TWAIN Pro
4-8, 4-10, 4-12, 4-
15
Error
command
5-5
fatal
5-5
indicator
5-4
interface
5-5
light
5-2
option
5-5
type
5-4
Exposure
2-38, 2-39
Eyedropper Sampling Area
2-18
F
Fast Preview 2-18
Fatal error
5-5
Fax
2-10
File compression
5-25
File size
2-14
Film Adapter, specifications
A-8
Film holders
3-1, 4-5
Flashing
error light
5-2
ready light
5-2
Flat Contrast
1-5
Flatbed
2-3
Fluorescent lamp, replacing
5-2
Focus position
2-43
Index 3
G
Gamma 1-5, 2-38, 2-39
Gray balance intensity
1-7, 2-42, 2-43
H
Halftone 2-6, 2-9
Hard disk
5-24
Height
2-14
High Contrast
1-5
High resolution monitor
5-25
Highlight
1-2, 2-38, 2-39
I
ICM 2-20
IEEE 1394, specifications
A-10
Image
coarse
5-25
database
4-18
Image Controls
2-38
Image quality adjustment tools
2-36
Image sizes
2-13
Image Type
2-4
Image Type Name
2-6
Indicator
error 5-4
focus position
2-43
marquee number
2-35
Initialization, methods
A-7
Installation
Automatic Document Feeder 4-19
SCSI interface board
4-28
Transparency Unit
4-3
Interface
board, SCSI 4-28
error
5-5
IEEE specifications
A-10
SCSI specifications
A-5
USB specifications
A-6
IP address
5-10
J
Jammed paper 5-12
L
Lamp, fluorescent 5-2
Laser Printer
2-10
Legal
4-22
Letter
4-22
Lighten
1-5
Line Art
2-4, 2-5
Linear
1-5
LineWork Scan
2-10
List
Destination
2-10
Document Source
2-3
Image Type
2-4
User defined settings
2-16
Loading
paper (Automatic Document
Feeder)
4-22, 4-24
Lock button
2-13, 2-15
Lock, transportation
5-3
Locked position
5-3
M
Main dialog box 2-1
Maintenance
5-1
Marquee
2-30
active
2-31
making and modifying
2-30
moving
2-33
resizing
2-32
Marquee number indicator
2-35
Memory
5-24
Millions of colors
5-25
Monitor, high resolution
5-25
Mounted slides
4-8
Moving marquees
2-33
Multiple marquees
2-31
4 Index
N
Non-readable area 5-14
Non-standard film sizes
4-15
Normal documents (Transparency
Unit) 4-16
O
OCR (Optical Character Recognition)
1-11, 2-4, 2-5, 2-10, 4-18
improving character recognition
1-
11
potential text recognition problems
1-12
Open
Automatic Document Feeder 4-24
Transparency Unit
4-16
Open Shadow
1-5
Optimizing image
1-1
Option
error
5-5
interface connector
4-4, 4-21
Output options
2-40, 2-41
Output values
1-10
P
PageManager for EPSON 3-3, 3-4
Paper jams
5-12
Paper sizes (Automatic Document
Feeder)
4-22
Pixel Depth
2-6, 2-7
Pixels, specifying number for
sampling
2-29
Power cord
4-3, 4-19, 4-29
Precautions (Automatic Document
Feeder)
4-27
Prepress 120 lpi
2-10
Prepress 133 lpi
2-10
Prepress 150 lpi
2-10
Prepress 175 lpi
2-10
Preview button
2-26
Preview Window Size
2-17
Previewing images
2-26
R
RAM 5-24
Reflective documents (Transparency
Unit)
4-16
Removing document cover
4-3, 4-19
Replacing
fluorescent lamp
5-2
SCSI board
5-13
Reset
2-43
Resetting image control settings
2-43
Resizing marquees
2-32
Resolution
2-11, 2-12, 2-13
Return to full preview
2-30
Return to zoom preview
2-30
S
Saturation 1-8, 2-42, 2-43
Save Preview Image and Settings
2-24
Scale
2-13
Scale bar
2-15
Scan
2-25
Scanner event
3-3
Scanner specifications
A-1
Scanners and Cameras
3-2
Scanning
negative film
2-3
normal (reflective) documents
(Transparency Unit) 4-16
positive film (or slides)
2-3
specifications
A-1
text
1-11
Scanning Mode
2-6, 2-7
Screen/Web
2-10
SCSI interface, specifications
A-5
SCSI, board
4-28
Shadow
1-3, 2-38, 2-39
Slides
4-8
Source image size
2-13
Specifications
document (Automatic Document
Feeder)
4-27
environmental
A-3
Film Adapter
A-8
Index 5
IEEE 1394 A-10
scanning
A-1
SCSI interface
A-5
standards and approvals
A-4
USB interface
A-6
sRGB
2-20
Standards
A-4
Start button
3-1, 3-2, 3-4
Storage size
2-13, 2-14
T
Table, document 4-15, 4-16
Target image size
2-13
Technical support
5-26
Text enhancement technology
2-8
Threshold
2-38, 2-40
Tone Correction
2-40
Tone Correction dialog box
1-9
Tone correction list
2-40, 2-42
Tone curve
1-5, 1-9
Tone curve editor
1-9, 2-40, 2-41
TPU for Neg. Film
2-3
TPU for Pos. Film
2-3
Transparency Unit
4-1
close
4-17
connect
4-4
installing
4-3
mounting slots
4-3
open
4-16
positioning transparencies
4-5
reflective document mat
4-17
scanning normal (reflective)
documents
4-16
shipping screw, removing
4-2
unpacking
4-1
Transparency unit
2-3
Transportation lock
5-3
Transporting
5-2, 5-3
True color
5-25
U
Unit 2-13
Unit of measurement
2-14
Unpacking
Automatic Document Feeder
4-19
Transparency Unit
4-1
Unsharp mask
2-11, 2-12
USB interface, specifications
A-6
USB, port
4-32
Using tone curve
1-9
V
Video card 5-25
W
Width 2-14
Width and height of image
2-13
Z
Zoom preview 2-29
72

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