CANON G3 FAX - Service Manual Immediate Download

REVSION 0

(230V)

MAY 1999

FY8-13FY-000

SUPER

G3 FAX BOARD-F1

IMPORTANT

THE INFORMATION CONTAINED HEREIN IS PUBLISHED BY CANON INC JAPAN.

SPECIFICATIONS AND OTHER INFORMATION CONTAINED HEREIN MAY VARY SLIGHTLY

FROM ACTUAL MACHINE VALUES OR THOSE FOUND IN ADVERTISING AND OTHER PRINTED

MATTER.

ANY QUESTIONS REGARDING INFORMATION CONTAINED HEREIN SHOULD BE DIRECTED

TO THE COPIER SERVICE DEPARTMENT OF THE APPROPRIATE SALES COMPANY.

Printed in Japan

Imprimé au Japon

Use of this manual should be strictly su-

pervised to avoid disclosure of confiden-

tial information.

Prepared by

OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DEPARTMENT 3

OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIVISION

CANON INC.

5-1, Hakusan 7-chome, Toride, Ibaraki 302-8501 Japan

i

INTRODUCTION

This Service Manual provides the following:

· Descriptions of the product quality and functions of the FAX Board installed to the

GP405/335 Series.

· Descriptions of the board needed when servicing in the field.

For basic information on product quality and functions needed to service a GP405/335

Series machine in the field, refer to the GP405/335 Series Service Manual.

This manual consists of the following chapters:

Chapter 1

Introduction, provides an outline of the product and its specifications

together with points to note for servicing work.

Chapter 2

Operation, explains basic mechanisms and functions.

Chapter 3

Mechanical, explains circuits and modular units used for fax functions.

Chapter 4

Service Mode, explains service soft switches.

Chapter 5

Error Codes, explains error codes and various reports.

Appendix

provides general circuit diagrams.

The information in this manual is subject to change for product improvement, and

major changes will be communicated in the form of a Service Information bulletin.

All service persons are encouraged to go through the contents of this Service Manual

and each Service Information bulletin to develop a thorough understanding of the product

and to be able to identify any fault that may occur over the life of the product.

iii

CONTENTS

CHAPTER 1 GENERAL DESCRIPTION

CHAPTER 2 OPERATION AND TIMING

I.

OUTLINE OF THE PRODUCT ... 1-1

II.

SPECIFICATIONS ...................... 1-2

A. Standards and Performance .... 1-2

III.

NAMES OF PARTS .................... 1-8

A. Location of the FAX Board ..... 1-8

IV.

CONTROL PANEL ..................... 1-9

A. Control Panel ......................... 1-9

B. Additional Functions /

Making Fax Settings ............ 1-10

C. Common Settings ................ 1-13

D. Master Password ................. 1-15

V.

POINTS TO NOTE FOR

SERVICING .............................. 1-16

A. Battery Backup .................... 1-16

B. Types of Backup Data .......... 1-17

C. Printing the Backup Data

Information ........................... 1-18

D. Removing / Initializing Data

in Service Mode ................... 1-19

I.

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

A. Functional Construction ......... 2-1

B. Control Block ......................... 2-2

C. Sleep Mode ........................... 2-3

D. Control Card .......................... 2-5

II.

READING SYSTEM ................... 2-6

A. Reading Originals .................. 2-6

B. Reading Operation ................ 2-7

C. Memory .................................. 2-8

D. Reading/SENT Stamp ......... 2-10

E. Memory Full Condition ........ 2-11

F. Basic Editing Functions ....... 2-12

G. Test Shot .............................. 2-14

H. Reduction/Enlargement ....... 2-15

III.

RECORDING SYSTEM ............ 2-16

A. Recording System ............... 2-16

B. Image Rotation .................... 2-35

IV.

COMMUNICATION SYSTEM ... 2-36

A. Image Signal Transmission

Speed .................................. 2-36

B. Canon Express Protocol ...... 2-38

C. JBIG Image Compression

Coding Method .................... 2-39

D. V.8/V.34 Procedure .............. 2-55

E. Rapid Transmission ............. 2-71

F. Direct Transmission ............. 2-73

G. Memory Transmission

Reservation ......................... 2-74

H. Broadcasting ....................... 2-74

I. Timer Transmission/

Timer Broadcasting ............. 2-75

J. Polling Reception/

Multiple Polling Reception ... 2-75

K. Timer Polling Reception/

Timer Multiple Polling

Reception ............................ 2-76

L. Paper Size Declaration in

Reception Mode .................. 2-77

V.

ARRANGEMENT AND

FUNCTIONS OF ELECTRICAL

PARTS ...................................... 2-78

A. Fax PCBs ............................ 2-78

B. Variable Resistors (VR),

Light-Emitting Diodes (LED),

and Check Pins by PCB ...... 2-79

iv

CHAPTER 3 MECHANICAL SYSTEM

CHAPTER 4 SERVICE MODE

CHAPTER 5 ERROR CODE

APPENDIX

I.

PREPARATIONS/POINTS TO

NOTE .......................................... 3-1

A. Turning Off the Main Power

Switch .................................... 3-1

II.

DISASSEMBLY/ASSEMBLY ...... 3-2

A. Fax Board .............................. 3-2

B. NCU PCB .............................. 3-7

C. Battery Board ......................... 3-8

D. Installing the Expansion Board

Base Unit ............................. 3-11

I.

SERVICE MODE ........................ 4-1

A. Service Data .......................... 4-1

B. Service Mode ......................... 4-2

C. Test Mode (#10 TEST) ......... 4-36

II.

SERVICE REPORT .................. 4-49

A. System Dump List .......... 4-49

B. Error Transmission

Report ............................ 4-51

C. Error Reception Results

Report (for servicing) .... 4-52

D. Default Setting List ......... 4-53

I.

USER ERROR CODES ............. 5-1

II.

SERVICE ERROR CODES ........ 5-5

A.

GENERAL CIRCUIT

DIAGRAM .................................. A-1

B.

NCU CIRCUIT DIAGRAM ......... A-3

C.

SYSTEM MOTHER CIRCUIT

DIAGRAM .................................. A-5

D.

MODULAR UNIT CIRCUIT

DIAGRAM .................................. A-7