Canon FAX-L350 User manual

REVISION 0
COPYRIGHT © 1999 CANON INC. CANON FAX-L350 DEC. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
HY8-10AM-000 DEC. 1999
FAX-L350 H12-1573 230V EC
FAX-L350 H12-1574 230V UK
FAX-L350 H12-1575 230V GER
FAX-L350 H12-1577 230V FRN
FAX-L350 H12-1578 230V AUS
FAX-L350 H12-1579 230V AE
HANDSET APPARATUS

Application
ThismanualhasbeenissuedbyCanon Inc. for qualified persons to learn technical theory, installation, maintenance,
and repair of products. This manual covers all localities where the products are sold. For this reason, there may
be information in this manual that does not apply to your locality.
Corrections
This manual may contain technical inaccuracies or typographical errors due to improvements or changes in
products. When changes occur in applicable products or in the content of this manual, Canon will release tech-
nical information as the need arises. In the event of major changes in the contents of this manual over a long or
short period, Canon will issue a new editions of this manual.
The following paragraph does not apply to any countries where such provisions are inconsistent with local law.
Trademarks
The product names and company names described in this manual are the registered trademarks of the individual
companies.
Copyright
This manual is copyrighted with all rights reserved. Under the copyright laws, this manual may not be copied,
reproduced or translated into another language, in whole or in part, without the written consent of Canon Inc.
Copyright © 1999 by Canon Inc.
CANON INC.
Office Imaging Products Technical Support Dept. 3
5-1 Hakusan 7-Chome, Toride-city, Ibaraki 302-8501, Japan
DTP System
This manual was produced on anApple Macintosh®personal computer, final pages were printed on Canon SUPER
LASER SHOT B406 PS.
All graphics were produced with Macromedia FreeHand®.
All documents and all page layouts were created with Adobe PageMaker®.

I
I. MEANING OF MARKS
The marks used in this manual have the following meanings.
Mark Meaning
States a precaution to be taken to prevent danger to personnel, damage to the product, or
damage to electronic components by discharge of static electricity. for example.
States a precaution to be taken to prevent damage to electronic components by
electrostatic discharge.
Informs you of fire-related cautions.
Informs you that the plug must be removed from the power outlet before starting an
operation.
Gives useful information to understand descriptions.
Indicates sections to be read to obtain more detailed information.
NOTE
REFERENCE

II
II. ABOUT THIS MANUAL
This manual is divided into five parts, and contains information required for servicing the product.
Each of the above parts is further divided into the following four chapters:
Chapter 1: General Description
This part explains product specifications and the how to service the unit safely. It is very important, so
please read it.
Chapter 2: Technical Reference
This part explains the technical theory of the product.
Chapter 3: Maintenance and Service
This part explains how to maintain the products for adjustment and troubleshooting and service operations
and service switches.
Chapter 4: Appendix
This part explains the informations of the optional products and user data flow.
• For more details of user operations and user reports, see the separate volume of USER'S
GUIDE
.
• Procedure for assembly/disassembly and greasing points are not given in this manual. See
the illustrations in the separate volume of
PARTS CATALOG .
• Detailed description of each SSSW/parameter is not given in this manual except the new
SSSWs/parameters added to this model.
See
G3 Facsimile Service Data Handbook (supplied separately) for details them.
• See the
G3 Facsimile Error Code List (Rev.1, supplied separately) for details of the
error codes not shown in this manual.
• Detailed description of connector Locations and Signal Descriptions in not given in this
manual.
See the Circuit Diagram for details them.
REFERENCE

III
III. REVISION HISTORY
REVISION CONTENT
0 Original

IV
IV. TABLE OF CONTENTS
Page Chapter 1: General Description
1 - 1 1. FEATURES
1 - 1 1.1 Overview
1 - 2 2. SPECIFICATIONS
1 - 2 2.1 General Specification
1 - 2 2.2 Communication Specification
1 - 3 2.3 Scanner Specification
1 - 5 2.4 Printer Specification
1 - 7 2.5 Copy Specifications
1 - 7 2.6 Interface Specifications
1 - 8 2.7 Function
1 -10 3. OVERVIEW
1 -10 3.1 External View
1 -12 3.2 Operation Panel
1 -15 3.3 Option
1 -15 3.4 Consumable
1 -16 4. DIMENSIONS
1 -18 5. SAFETY & PRECAUTIONS
1 -18 5.1 Personnel Hazards
1 -20 5.1.1 Electrical shock
1 -20 5.1.2 High-temperature parts
1 -20 5.1.3 Fire hazards
1 -21 5.1.4 Moving parts
1 -21 5.1.5 LASER beams
1 -22 5.2 General Cautions
1 -22 5.2.1 Unit cautions
1 -29 5.2.2 Toner cartridge cautions
1 -31 5.3 Servicing Cautions
1 -31 5.3.1 Damage from static charge
1 -31 5.3.2 Scanner section
1 -32 5.3.3 Printer section
1 -33 5.3.4 Paper feed section
1 -34 5.3.5 Paper load section
1 -34 5.3.6 Control boards
1 -35 5.3.7 Replacing ROM
1 -36 5.4 Data-related precautions
1 -36 5.4.1 Data in the image storage memory (DRAM)
1 -38 5.4.2 Data in the control processing memory (SRAM)
1 -39 5.4.3 SCNT board replacement precautions
1 -40 5.4.4 Data initialization through service operation
1 -41 5.5 Protective Mechanism
1 -41 5.5.1 Data battery backup function
1 -41 5.5.2 Overcurrent protection
1 -41 5.5.3 Lightning protection

V
1 -41 5.5.4 Power leakage protection
1 -42 6. QUALIFICATION REQUIRED FOR INSTALLATION WORK
Chapter 2: Technical Reference
2 - 1 1. DRIVE/ELECTRICAL SYSTEM LAYOUT
2 - 4 2. SCANNER MECHANISM
2 - 8 3. PAPER SUPPLY SECTION
2 -12 4. PRINTER SECTION
2 -13 4.1 LASER/Scanner Section
2 -13 4.2 Toner Cartridge
2 -13 4.3 Toner Transfer Section
2 -13 4.4 Fixing Section
2 -14 4.5 Paper Feed/Eject Section
2 -17 5. ELECTRIC CIRCUIT
2 -17 5.1 Component Block Diagram
2 -18 5.2 Circuit Board Components
2 -20 5.3 Flow of Image Signals
2 -22 6. COMMUNICATION SYSTEM OPERATIONS
2 -22 6.1 FAX/TEL Switching
2 -22 6.1.1 Settings
2 -22 6.1.2 Parameters
2 -23 6.2 Answering Machine Connection
2 -23 6.2.1 Settings
2 -23 6.2.2 Parameters
2 -23 6.3 Manual/Auto Reception Switching
2 -23 6.3.1 Settings
2 -23 6.3.2 Parameters
2 -24 7. NEW FUNCTION
2 -24 7.1 High-speed Transmission
2 -24 7.1.1 V.8/V.34 protocol
2 -38 7.2 JBIG Image Compression Encoding Method
2 -38 7.2.1 Outline of the JBIG image compression encoding method
2 -39 7.2.2 Single progression sequential bi-level image compression method
2 -40 7.2.3 Encoding method
2 -47 7.2.4 Construction of image data with JBIG image compression encoding
2 -48 7.2.5 Explanation of bi-level image header section (BIH)
2 -49 7.2.6 Explanation and parameters for each symbol used in BIH
2 -50 7.2.7 Explanation of bi-level image data (BID) section
2 -50 7.2.8 Explanation and parameters for each symbol used in BID
Chapter 3: Maintenance and Service
3 - 1 1. MAINTENANCE LIST
3 - 1 1.1 Consumables
3 - 1 1.2 Cleaning
3 - 2 1.3 Periodic Inspection
3 - 2 1.4 Periodic Replacement Parts
3 - 3 1.5 Adjustment Items

VI
3 - 3 1.6 General Tools
3 - 3 1.7 Special Tools
3 - 4 2. HOW TO CLEAN PARTS
3 - 4 2.1 Main Unit Outer Covers
3 - 4 2.2 Separation Roller
3 - 4 2.3 Separation Guide
3 - 4 2.4 White Sheet
3 - 4 2.5 Scanning Glass (Contact Sensor)
3 - 4 2.6 Paper Feed Guide
3 - 6 2.7 Paper Pickup Roller
3 - 6 2.8 Transfer Charging Roller
3 - 6 2.9 Static Charge Eliminator
3 - 6 2.10High Voltage Terminal
3 - 6 2.11Fixing Entrance Guide
3 - 6 2.12Paper Face-up Eject Roller
3 - 6 2.13Flapper
3 - 6 2.14Document Feed Roller, Document Eject Roller
3 - 6 2.15Pressure Roller
3 - 6 2.16Fixing Ass’y
3 - 6 2.17Separation Pad
3 - 8 3. REPLACING PARTS & ADJUSTMENT
3 - 8 3.1 Replacing Parts
3 - 8 3.2 Adjustment
3 - 9 4. TROUBLESHOOTING
3 - 9 4.1 Troubleshooting Index
3 -10 4.2 Errors Shown on the Display
3 -10 4.2.1 User error message
3 -12 4.2.2 Error codes
3 -18 4.3 Errors not Shown on the Display
3 -18 4.3.1 General errors
3 -19 4.3.2 Printing problems
3 -25 4.3.3 Scanning problems
3 -27 5. SERVICE SWITCHES
3 -27 5.1 Hardware Switches
3 -28 5.2 Service Data Settings
3 -28 5.2.1 Service data overview
3 -29 5.2.2 Service data registration/setting method
3 -30 5.2.3 Service data settings
3 -37 5.2.4 Explanation of service data
3 -38 5.2.5 New SSSWs/parameters added to this model
3 -53 6. TEST FUNCTIONS
3 -53 6.1 Service Test Functions
3 -53 6.1.1 Test mode overview
3 -54 6.1.2 Test mode flowchart
3 -55 6.1.3 D-RAM tests
3 -56 6.1.4 Print
3 -57 6.1.5 Modem and NCU tests

VII
3 -60 6.1.6 Faculty tests
3 -65 7. SERVICE REPORT
3 -65 7.1 Report Output Function
3 -65 7.1.1 User report output functions
3 -67 7.1.2 Service report output functions
3 -75 8. WIRING DIAGRAM
3 -75 8.1 Wiring Diagram
3 -76 8.2 Connector Locations and Signal Descriptions
Chapter 4: Appendix
4 - 1 1. INSTALLING THE FAX-L350
4 - 1 1.1 Setting Up
4 - 1 1.2 Checking Operations
4 - 2 2. OPTION
4 - 2 2.1 HANDSET KIT
4 - 8 3. USER DATA FLOW
4 - 8 3.1 User Data Flow (by Operation Panel)
4 -11 4. MAKER-CODE