CONTENTS
CHAPTER 1 PRODUCT INFORMATION
I. FEATURES ............................. 1-1
II. SPECIFICATIONS.................... 1-3
III. SAFETY INFORMATION..... 1-6
IV. PARTS OF THE PRINTER ....... 1-7
V. INSTALLATION ....................... 1-12
VI. MAINTENANCE AND
SERVICING BY THE
CUSTOMER ............................ 1-19
VII. OPERATION............................ 1-20
CHAPTER 2 OPERATION AND TIMING
CHAPTER 3 THE MECHANICAL SYSTEM
I. BASIC OPERATION................. 2-1
A. Functions.......................... 2-1
B. Basic Operation Sequences 2-2
C. Power ON Sequence........... 2-3
II. ENGINE CONTROL SYSTEM.... 2-4
A. Engine Controller PCB....... 2-4
B. Fixing Control ................... 2-10
C. High-Voltage Power Supply
Circuit............................... 2-14
D. Low-Voltage Power Supply
Circuit............................... 2-16
E. Video Interface Control ..... 2-17
F. Other Controls .................. 2-20
III. LASER/SCANNER SYSTEM..... 2-22
A. Outline.............................. 2-22
B. Laser Control Circuit......... 2-23
C. Scanner System ................ 2-26
IV. IMAGE FORMATION SYSTEM . 2-28
A. Outline.............................. 2-28
B. Printing Process ................ 2-30
V. PICK-UP/FEED SYSTEM......... 2-38
A. Outline.............................. 2-38
B. Paper Size Detection ......... 2-40
C. Cassette Pick-up................ 2-41
D. Multi-purpose Tray
Pick-up.............................. 2-44
E. Fixing and Delivery Unit.... 2-46
F. Paper Jam Detection......... 2-48
VI. VIDEO CONTROL SYSTEM...... 2-50
A. Video Controller Circuit .... 2-50
B. Adapter Circuit.................. 2-52
C. Operation Panel................. 2-55
D. Self Test............................ 2-56
VII. PAPER FEEDER...................... 2-58
A. Outline.............................. 2-58
B. Pick-up and Feeding.......... 2-59
C. Paper Jam Detection......... 2-62
VIII.ENVELOPE FEEDER ............... 2-63
A. Outline.............................. 2-63
B. Pick-up and Feeding.......... 2-64
C. Paper Jam Detection......... 2-67
IX. DUPLEXING UNIT ................... 2-68
A. Outline.............................. 2-68
B. Reversing and duplexing
unit Pick-up ...................... 2-70
C. Paper Jam Detection......... 2-74
I. EXTERNALS ........................... 3-1
A. External Covers................. 3-1
B. Pick-up Module.................. 3-5
C. Cooling Fan....................... 3-6
D. Operation Panel................. 3-7
II. DRIVE SYSTEM ...................... 3-8
A. Drive Unit ......................... 3-8
B. Main Motor........................ 3-9
C. Pick-up Drive Unit............. 3-10
III. PAPER TRANSPORT SYSTEM . 3-11
