Canon LBP-3260 Manuel utilisateur

SERVICE

MANUAL

REVISION 0

RY8-1390-000

JAN. 1999

Printed in Japan

Imprimé au Japon

Use of this manual should be

strictly supervised to avoid

disclosure of confidential

information.

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

PREFACE

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

printer LBP-3260 (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.

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 pro-

cedures

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.

DTP system

This manual was produced on an Apple PowerMacintosh 9500/233 personal computer and output by an

Apple LaserWriter 16/600 PS laser beam printer; final pages were printed on DAINIPPON SCREEN MFG

CO. LTD DT-R3100.

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(J).

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

A. Locations .......................... 3-24

B. Thermoswitch ................... 3-25

C. Door Switch ...................... 3-25

D. Upper Cassette Paper-size

Sensing Switch/Lower Cassette

Paper-size Sensing Switch . 3-26

E. Thermistor ........................ 3-26

F. Registration Paper Sensor . 3-27

G. Pick-up Unit Paper Sensor. 3-28

H. Pick-up Unit Door Sensor .. 3-28

I. Lower Cassette Sensor/

Upper Cassette Sensor/

Lower Cassette Paper-level

Sensor 1/Lower Cassette

Paper-level Sensor 2/Upper

Cassette Paper-level Sensor 1/

Upper Cassette Paper-level

Sensor 2/Lower Cassette

Paper-out Sensor/Upper

Cassette Paper-out Sensor. 3-29

J. Multi-purpose Tray Paper

Sensor /Lifting Plate

Position Sensor ................. 3-29

K. Face-down Tray Paper Full

Sensor /Face-down Tray

Delivery Sensor /Fixing

Unit Delivery Sensor ......... 3-30

VI. CLUTCHS/SOLENOIDS ........... 3-31

A. Locations .......................... 3-31

B. Multi-purpose Tray Pick-up

Clutch ............................... 3-32

C. Feed Clutch....................... 3-32

D. Registration Clutch ........... 3-33

E. Lifting Plate Solenoid ........ 3-33

F. Cassette Pick-up Solenoid . 3-34

G. Face-up Solenoid Unit ....... 3-34

VII. MOTORS/FANS ...................... 3-35

A. Locations .......................... 3-35

B. Main Motor........................ 3-36

C. Pick-up Motor.................... 3-36

D. Fans ................................. 3-37

VIII.PCBS...................................... 3-41

A. Locations .......................... 3-41

B. Video Controller PCB Unit . 3-42

C. DC Controller PCB ............ 3-43

D. Pick-up PCB ..................... 3-44

E. Multi-purpose Tray PCB ... 3-44

F. Switch/Sensor PCB .......... 3-45

G. High-voltage Power Supply

Unit .................................. 3-47

H. Cassette Paper-size Sensing

PCB .................................. 3-47

I. Power Supply ................... 3-48

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

A. Malfunction Diagnosis

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

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

C. Test Print .......................... 4-5

II. IMAGE DEFECTS.................... 4-8

III. PAPER JAMS

TROUBLESHOOTING .............. 4-14

IV. PAPER TRANSPORT

TROUBLESHOOTING .............. 4-18

V. MALFUNCTION

TROUBLESHOOTING .............. 4-20

VI. MALFUNCTION STATUS

TROUBLESHOOTING .............. 4-21

VII. MEASUREMENT AND

ADJUSTMENT ........................ 4-28

A. Mechanical Adjustment ..... 4-28

B. Electrical Adjustment........ 4-29

C. Variable Resistors, LEDs,

Test Pins, Jumpers and

Switches on PCBs.............. 4-30

VIII.MAINTENANCE AND

CHAPTER 4 TROUBLESHOOTING

APPENDIX

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

II. GENERAL CIRCUIT DIAGRAM A-3

III. LIST OF SIGNALS................... A-5

IV. MESSAGES TABLE ................. A-11

SERVICING............................. 4-35

A. Periodic Replacement

Parts ................................ 4-35

B. Expected Service Life of

Consumable Parts.............. 4-35

C. Periodic Service ................ 4-35

D. Cleaning during a Service

Visit .................................. 4-36

E. Standard Tools .................. 4-38

F. Special Tools ..................... 4-39

G. Special Tools (printer driver

tester) Explanation........... 4-40

H. Solvents and Oil List ......... 4-47

IX. LOCATION OF CONNECTORS . 4-48

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

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