Canon CLBR 460ps Manuel utilisateur

SERVICE

MANUAL

REVISION 0

OCT. 1998

RY8-1389-000

Printed in Japan

Imprimé au Japon

Prepared by

PERIPHERAL PRODUCTS QUALITY PLANNING 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 confidential

information.

PREFACE

This Service Manual contains basic information required for after-sales service of the laser

beam printer (hereinafter referred to as the “printer”) CLBP-460PS. This information is vital to

the service technician in maintaining the high print quality and performance of the printer.

The paper feeder and duplexing unit, which are prepared for the printer as options, are also

described in this manual.

This manual consists of the following chapters:

Chapter 1: Product information

Features, specifications, operation, 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

Maintenance and servicing, reference values and adjustments, troubleshooting

procedures, lubricants, and solvents

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 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 repair-

ing the causes of malfunctions.

DTP system

This manual was produced on an Apple PowerMacintosh 9500/200 personal computer and out-

put by an Apple LaserWriter 16/600 PS laser beam printer.

All graphics were produced with Macromedia FreeHand (J), and all documents and page lay-

outs were created with QuarkXPress (E).

The video images were captured with SONY digital video camcorder and MASS microsystems

Quickimage 24 video capture board, and modified with Adobe Photoshop™ (J).

CONTENTS

CHAPTER 1 PRODUCT INFORMATION

I. FEATURES .............................1-1

II. SPECIFICATIONS....................1-3

A. Printer...............................1-3

B. Video Controller ................1-5

III. SAFETY INFORMATION .....1-8

A. Laser Safety ......................1-8

B. Toner Safety......................1-8

C. Ozone Safety .....................1-8

D. Power Supply Safety..........1-8

IV. PARTS OF THE PRINTER .......1-9

A. External View....................1-9

B. Cross Sectional View .........1-11

V. INSTALLATION .......................1-13

A. Notes.................................1-13

B. Choosing a Location..........1-13

C. Unpacking and Installation

.........................................1-15

D. Storing and Handling

Cartridges and ITB Unit.....1-23

VI. MAINTENANCE AND SERVICING BY

THE CUSTOMER ....................1-26

VII. OPERATION............................1-28

A. Control Panel ....................1-28

B. Control Panel Menu...........1-30

CHAPTER 2 OPERATION AND TIMING

I. BASIC OPERATION.................2-1

A. Functions..........................2-1

B. Basic Sequence of

Operations.........................2-2

C. Power-on Sequence............2-3

II. ENGINE CONTROL SYSTEM....2-4

A. DC Controller PCB.............2-4

B. Fixing Control Circuit .......2-14

C. High-voltage Power Supply

Circuit...............................2-20

D. Low-voltage Power Supply

Circuit...............................2-25

E. Video Interface Control .....2-28

F. Other Control....................2-30

III. LASER/SCANNER SYSTEM.....2-37

A. Laser System.....................2-37

B. Laser Control Circuit.........2-39

C. Scanner System ................2-42

IV. IMAGE FORMATION SYSTEM .2-44

A. Outline..............................2-44

B. Operation ..........................2-45

C. Print Process .....................2-62

D. Image Stabilization Control

.........................................2-73

V. PICK-UP/FEED SYSTEM.........2-75

A. Outline..............................2-75

B. Paper Pick-up ....................2-77

C. Feed Unit ..........................2-84

D. Fixing and Delivery Unit....2-85

E. Paper Jam Detection .........2-89

VI. VIDEO CONTROL SYSTEM......2-90

A. Video Controller PCB.........2-90

B. Control Panel ....................2-93

C. Self Test............................2-94

D. Boot ROM Menu ................2-96

E. Powar Saver.......................2-98

VII. DUPLEXING UNIT ...................2-99

A. Outline..............................2-99

B. Reversing and Duplex

Pick-up Operation .............2-101

C. Paper Jam Detection.........2-106

VIII.PAPER FEEDER......................2-108

A. Outline..............................2-108

B. Pick-up and

Feed Operation..................2-109

C. Paper Jam Detection.........2-110

CHAPTER 3 THE MECHANICAL SYSTEM

I. INTRODUCTION......................3-1

A. Outline .............................3-1

B. Removal of the

Toner Cartridge

whit Manual Operation ......3-2

II. EXTERNALS ...........................3-4

A. Locations ..........................3-4

B. External Covers.................3-5

C. Control Panel ....................3-9

III. MAIN UNITS ...........................3-10

A. Laser/Scanner Unit ...........3-10

B. Drum Drive Unit................3-11

C. Rotary Drive Unit..............3-14

D. Multi-purpose

Pick-up Unit ......................3-14

E. Feed Unit ..........................3-16

F. Fixing Unit ........................3-16

G. Delivery Unit.....................3-17

H. Drum Cartridge

Drawer Unit.......................3-17

I. ITB Unit Drawer Unit.........3-18

J. Developing Rotary.............3-19

IV. MAIN PARTS ..........................3-21

A. Cassette Pick-up Roller .....3-21

B. Cassette Feed Roller..........3-21

C. Cassette Separation Roller

.........................................3-21

D. Multi-purpose Tray

Pick-up Roller ...................3-22

E. Separation Pad ..................3-22

F. Secondary Transfer Roller

.........................................3-24

G. Upper Thermoswitch .........3-24

H. Lower Thermoswitch .........3-25

I. Upper Thermistor ..............3-25

J. Lower Thermistor..............3-26

K. Upper Fixing Heater ..........3-26

L. Lower Fixing Heater ..........3-27

M. Upper Fixing Roller ...........3-28

N. Lower Fixing Roller ...........3-30

O. 90-Fan/60-Fan Air Filter ...3-32

P. 40-Fan Air Filter ...............3-32

V. SWITCHES/SENSORS.............3-33

A. Locations ..........................3-33

B. ITB Unit Drawer Open

Detection Switch...............3-35

C. Toner Cartridge Door Open

Detection Switch...............3-35

D. Drum Cartridge Drawer Open

Detection Switch...............3-36

E. +24V Interruption Switch1

.........................................3-36

F. +24V Interruption Switch2

.........................................3-37

G. Cassette Paper Size

Detection Switch...............3-37

H. Power Switch.....................3-38

I. Test Print Switch ..............3-38

J. Registration Paper Sensor .3-39

K. Multi-purpose Tray

Last Paper Sensor.............3-39

L. Multi-Purpose Tray

Paper Sensor .....................3-40

M. ITB Home

Position Sensor .................3-40

N. Fixing Unit Pressure

Release Sensor ..................3-41

O. Paper Delivery Sensor .......3-41

P. Cassette Paper Sensor .......3-42

Q. Face-down Tray

Paper Full Sensor ..............3-42

R. Developing Rotary

Home Position Sensor .......3-43

S. Toner Cartridge

Contact Sensor..................3-43

T. Toner Level Sensor............3-44

U. Waste Toner Full Sensor ....3-44

V. OHT Sensor .......................3-45

W. Density Sensor ..................3-45

VI. SOLENOIDS/CLUTCHES .........3-47

A. Locations ..........................3-47

B. Multi-purpose Tray

Pick-up Solenoid ...............3-48

C. Cassette

Pick-up Solenoid ...............3-48

D. Registration Roller Clutch.3-49

E. ITB Unit Contact Clutch....3-49

F. ITB Cleaning Roller

Press Clutch ......................3-50

G. Secondary Transfer Roller

Press Clutch ......................3-50

VII. MOTORS/FANS ......................3-51

A. Locations ..........................3-51

B. Fixing Motor Unit..............3-52

C. Pick-up Motor....................3-52

D. Developing Rotary Motor...3-53

E. Drum Motor.......................3-53

F. Toner Cartridge

Motor Unit ........................3-54

G. 90-Fan...............................3-54

H. 60-Fan...............................3-55

I. 40-Fan...............................3-56

VIII.ELECTRONIC COMPONENTS ..3-58

A. Locations ..........................3-58

B. DC Controller PCB.............3-59

C. Connector PCB ..................3-60

D. Low-voltage Power

Supply Unit .......................3-60

E. High-voltage

Power Supply Unit.............3-61

F. Developing PCB .................3-61

G. Feed PCB...........................3-62

H. Multi-purpose Tray PCB.....3-62

I. Toner Level

Detection PCBs

[Emitter and Receiver].......3-64

J. Waste Toner Full

Detection PCBs

[Emitter and Receiver].......3-64

K. Cassette Paper Size

Detection PCB ...................3-65

L. Video Controller PCB.........3-65

IX. DUPLEXING UNIT ...................3-66

A. External Covers.................3-66

B. Motors/Solenoids ..............3-69

C. Sensors .............................3-72

D. Electrovic Components .....3-75

X. PAPER FEEDER......................3-77

A. Locations ..........................3-77

CHAPTER 4 TROUBLESHOOTING

I. PREFACE ...............................4-1

A. Malfunction Diagnosis

Flowchart ..........................4-1

B. Initial Check .....................4-4

C. Test Print ..........................4-6

II. IMAGE DEFECT......................4-17

III. PAPER JAMS

TROUBLESHOOTING ..............4-27

IV. PAPER TRANSPORT

TROUBLESHOOTING ..............4-34

V. MALFUNCTION

TROUBLESHOOTING ..............4-36

VI. MALFUNCTION STATUS

TROUBLESHOOTING ..............4-37

VII. MEASUREMENT AND

ADJUSTMENT ........................4-53

A. Mechanical Adjustment .....4-53

B. Electrical Adjustment........4-54

C. Variable Resistors [VR],

Test Print, Jumpers,

and Switches on PCBs .......4-55

APPENDIX

I. GENERAL TIMING CHART ......A-1

II. GENERAL CIRCUIT DIAGRAM

.........................................A-25

III. LIST OF SIGNALS...................A-29

IV. MESSAGE TABLE ...................A-36

VIII.MAINTENANCE AND

SERVICING.............................4-59

A. Periodic Replacement Parts

.........................................4-59

B. Expected Service Life of

Consumable Parts..............4-59

C. Periodic Service ................4-60

D. Cleaning During a Sarvice Visit

.........................................4-60

E. Standard Tools ..................4-64

F. Special Tools .....................4-65

G. List of Lubricants and

Cleaners ............................4-66

IX. SERVICE MODE .....................4-67

A. Outline..............................4-67

B. Mode Description ..............4-73

X. LOCATION OF CONNECTORS .4-78

CHAPTER 1

PRODUCT INFORMATION

I. FEATURES ............................. 1-1

II. SPECIFICATIONS.................... 1-3

III. SAFETY INFORMATION...... 1-8

IV. PARTS OF THE PRINTER ....... 1-9

V. INSTALLATION ....................... 1-13

VI. MAINTENANCE AND

SERVICING BY THE

CUSTOMER ............................ 1-26

VII. OPERATION............................ 1-28

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