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 ...................... 1-9
VI. MAINTENANCE AND
SERVICING BY THE
CUSTOMER ........................... 1-18
VII. OPERATION .......................... 1-21
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. DC Controller Circuit ........ 2-4
B. Fixing Control ................... 2-10
C. High-Voltage Power
Supply............................... 2-16
D. Power Supply..................... 2-19
E. Video Interface Control ..... 2-21
F. Other Controls .................. 2-23
III. LASER/SCANNER SYSTEM..... 2-26
A. Outline.............................. 2-26
B. Laser Control Circuit......... 2-27
C. Scanning System............... 2-30
IV. IMAGE FORMATION SYSTEM . 2-32
A. Outline.............................. 2-32
B. Printing Process ................ 2-34
V. PICK-UP/FEED SYSTEM......... 2-42
A. Outline.............................. 2-42
B. Paper Pick-up .................... 2-45
C. Fixing and Delivery Unit.... 2-57
D. Paper Jam Detection ......... 2-59
VI. OVERALL CONTROL SYSTEM. 2-61
A. Video Controller PCB......... 2-61
B. Control Panel .................... 2-65
C. Self Test............................ 2-66
I. PREFACE ............................... 3-1
II. EXTERNALS ........................... 3-2
A. Locations .......................... 3-2
B. Control Panel Unit............. 3-7
III. MAIN UNITS........................... 3-8
A. Laser/Scanner Unit ........... 3-8
B. Drive Unit ......................... 3-8
C. Pick-up Unit ...................... 3-9
D. Multi-purpose Tray Pick-up
Unit.................................. 3-12
E. Registration Roller Unit .... 3-12
F. Delivery Unit ..................... 3-13
G. Fixing Unit ........................ 3-13
H. Feed Unit .......................... 3-14
IV. MAIN PARTS .......................... 3-15
A. Locations .......................... 3-15
B. Multi-purpose Tray Pick-up
Roller ............................... 3-16
C. Separation Pad .................. 3-16
D. Pick-up/Feed/Separation
Rollers ............................. 3-17
E. Registration Lower Roller.. 3-17
F. Transfer Charging Roller ... 3-18
G. Fixing Roller Heater .......... 3-18
H. Fixing Upper Roller ........... 3-19
I. Fixing Lower Roller ........... 3-22
J. Cleaning Roller.................. 3-23
V. SWITCHES/SENSORS............. 3-24