LBP-1000
SERVICE
MANUAL
REVISION 0
COPYRIGHT
©© 2000 CANON INC.
CANON LBP-1000 REV.0 JAN. 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
JAN. 2000
RY8-13A1-000
COPYRIGHT © 2000 CANON INC
Printed in Japan
Imprimé au Japon
Prepared by
PERIPHERAL PRODUCTS QUALITY ADVANCEMENT DIV.
PERIPHERAL PRODUCTS TECHNICAL DOCUMENTATION DEPT.
CANON INC.
5-1, Hakusan 7-chome, Toride-City, Ibaraki-Pref. 302-8501, Japan
Use of this manual should
be strictly supervised to
avoid disclosure of confi-
dential information.
PREFACE
This Service Manual contains basic information required for after-sales service of the laser beam
printer LBP-1000 (hereinafter referred to as the "printer"). This information is vital to the ser-
vice technician in maintaining the high print quality and performance of the printer.
The paper feeder, which is prepared for the printer as option, is also described in this manu-
al.
This manual consists of the following chapters:
Chapter 1: Product information
Features, specifications, and installation
Chapter 2: Operation and Timing
A description of the operating principles and timing sequences of the electrical and
mechanical systems.
Chapter 3: The Mechanical System
Explanation of mechanical operation, disassembly, reassembly and adjustment
procedures
Chapter 4: Troubleshooting
Troubleshooting procedures, reference values and adjustments, maintenance and
servicing, etc.
Appendix:
General timing chart, general circuit diagram, etc.
Information in this manual is subject to change as the product is improved or redesigned. All
relevant information in such cases will be supplied in the Service Information Bulletins.
A thorough understanding of this printer, based on information in this Manual and Service
Information bulletins, is required for maintaining its performance and for locating and repairing
the causes of malfunctions.
PREFACE
P - 1
PREFACE
P - 2
DTP system
This manual was produced on an Apple PowerMacintosh 9500/200 personal computer and output by an
Apple LaserWriter 16/600 PS laser beam printer; final pages were printed on AGFA Selectset avantra 25.
All graphics were produced with Macromedia FreeHand (J), and all documents and page layouts were
created with QuarkXPress (E).
The video images were captured with SONY degital video camcorder and Radius PhotoDV capture board
system, and modified with Adobe Photoshop
TM (J).
CONTENTS
CHAPTER 1 PRODUCT INFORMATION
PREFACE
P - 3
I.
FEATURES................................ 1-1
II.
SPECIFICATIONS ...................... 1-3
III.
SAFETY INFORMATION........ 1-6
IV.
PARTS OF THE PRINTER .......... 1-7
V.
INSTALLATION ......................... 1-10
VI. MAINTENANCE AND
SERVICING BY THE
CUSTOMER .............................. 1-17
VII. OPERATION .............................. 1-18
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 Circuit.......... 2-9
C. High-voltage Power Supply
Circuit ................................. 2-12
D. Low-voltage Power Supply
Circuit ................................. 2-14
E. Video Interface Control ....... 2-15
F. Other Controls..................... 2-17
III. LASER/SCANNER SYSTEM ....... 2-18
A. Outline ................................ 2-18
B. Laser Control Circuit ........... 2-19
C. Scanner System ................... 2-22
IV.
IMAGE FORMATION SYSTEM.... 2-24
A. Outline ................................ 2-24
B. Printing Process .................. 2-25
V.
PICK-UP/FEED SYSTEM ........... 2-32
A. Outline ................................ 2-32
B. Fixing and Delivery Unit ...... 2-35
C. Paper Jam Detection ........... 2-36
VI. VIDEO CONTROL SYSTEM ........ 2-38
A. Video Controller Circuit....... 2-38
B. Operation Panel ................... 2-43
C. Self Test .............................. 2-44
VII. PAPER FEEDER ........................ 2-47
A. Outline ................................ 2-47
B. Pick-up and Feeding ............ 2-48
C. Paper Jam Detection ........... 2-51
I.
PREFACE.................................. 3-1
II.
EXTERNALS ............................. 3-2
A. Locations............................. 3-2
III. MAIN UNITS ............................. 3-7
A. Laser/Scanner Unit.............. 3-7
B. Drive Unit............................ 3-7
C. Cassette Pick-up Unit .......... 3-8
D. Registration Roller Unit....... 3-8
E. Fixing Unit .......................... 3-9
IV.
MAIN PARTS ............................. 3-10
A. Locations............................. 3-10
B. Multi-purpose Tray
Pick-up Roller ...................... 3-11
C. Separation Pad (multi-
purpose tray) ....................... 3-11
D. Cassette Pick-up Roller........ 3-12
E. Separation Pad (Cassette) .... 3-12
F. Lower Registration Roller .... 3-13
G. Registration Shutter ............ 3-13
H. Transfer Charging Roller...... 3-14
I. Fixing Film Unit .................. 3-14
J. Pressure Roller .................... 3-15
CHAPTER 2 OPERATION AND TIMING
CHAPTER 3 THE MECHANICAL SYSTEM