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

VIII
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Chapter 1
General
Description

1-1
FAX-L350 Chapter 1: General Description
1. FEATURES
1.1 Overview
This product is a G3 tranceiving facsimile based on the ITU-T recommendation. It can be used in telephone
networks.
High image quality
Ultra-high quality image processing. Gives faithful reproduction of documents.
Plain paper printing with LBP
The printer section uses an LBP which employs an on-demand fixing system, operating the fan and fixing
heater only when printing, and prints on plain paper.
Excellent print quality and speed
The FAX-L350 offers 600´600 dpi laser beam printing, providing you with high resolution text and graph-
ics. The exceptional printing speed of 6 pages per minute allows you to work more effectively.
Toner detection function
This unit uses a magnetic (permeability) sensor to detect remaining toner.
Automatic dialing
There are 32 one-touch dial locations, and 100 coded-speed dial locations. Registered numbers can be
retrieved using the telephone directory feature.
Improved speed
This fax unit is equipped with the ITU-T standard V.34 mode which enables transmission speeds up to
33.600 bps ,more than double the rate of older G3 fax models.
Improved data compression
JBIG, a new data compression method, compresses data to approximately one-fifth the block size attained
with MMR data compression. The smaller block size requires less transmission time, and this means saving
you time and money.´
Memory reception
No need to worry about toner or recording paper running out in the middle of a reception. Received docu-
ments are stored in memory until they can be output later.
Delayed transmission
Documents can be sent automatically, at a preset time. This means that documents can be sent late at night,
thus reducing transmission costs.

1-2
FAX-L350 Chapter 1: General Description
2. SPECIFICATIONS
2.1 General Specification
Type Desktop
Body colour Art gray
Power source 180 ~ 264VAC, 45 ~ 65 Hz,
Power consumption standby less than 7.5W / less than 495W (when operating)
Usage environment 50.0°F ~ 90.5°F (10°C ~ 32.5°C), 20%~85% RH
Horizontal ±3° or less
Operating noise Measured in accordance with ISO standards
Standby : 30 dB(A) or less
Operating : 48 dB(A) or less
Dimensions (W ✕D ✕H) 14.96" ´19.02" ´11.95" (380 mm ´483 ´303.5 mm)
(Not including Trays)
Weight 28.66 lbs (13 kg) Including trays
2.2 Communication Specification
Applicable lines PSTN (Public Switched Telephone Network)
PBX (Private Branch Exchange)
Handset CT-19 (option)
Transmission method Half-duplex
Transmission control protocol ITU-T T30 binary protocol/ECM protocol
Modulation method
G3 image signals ITU-T V.27ter (2.4k, 4.8k bps)
ITU-T V.29 (7.2k, 9.6k bps)
ITU-T V.33 (12k, 14.4k bps)
ITU-T V.17 (TC7.2k, TC9.6k, 12k, 14.4k bps)
ITU-T V.34 (2.4k, 4.8k, 7.2k, 9.6k, 12k, 14.4k, 16.8k, 19.2k,
21.6k, 24k, 26.4k, 28.8k, 31.2k, 33.6k bps)
G3 procedure signals ITU-T V.21 (No.2) (300bps)
ITU-T V.8,V34 (300, 600, 1200 bps)
(With automatic fallback function)
Coding ITU-T T.4 Coding method (MH, MR)
ITU-T T.6 Coding method (MMR)
ITU-T T.82/T.85 Coding method (JBIG)
Error correction ITU-T T30 (ECM)
Canon express protocol (CEP) None

1-3
FAX-L350 Chapter 1: General Description
Time required for transmission protocol
Mode Pre-message Post-message Post-message
Protocol *1 Protocol *2 Protocol *3
(between pages) (after pages)
T.30 Standard approx. 12 sec. approx. 4 sec. approx. 3.5 sec.
V.34 JBIG approx. 9 sec. approx. 1 sec. approx. 1 sec.
*1 Time from when other facsimile is connected to the line until image transmission begins.
*2 Post-message (between pages): Time from after one document has been sent until
transmission of the next document starts if several pages are transmitted.
*3 Post-message (after last pages): Time from after image transmission is completed until
line is switched from facsimile to telephone.
Minimum transmission time 10 msec. (MH,MR), 0 msec. (MMR)
Transmission output level from -15 to 0 dBm
Receive input level from -43 to -3 dBm
Modem IC R288F
2.3 Scanner Specification
Type Sheets
ADF capacity Max. 30 sheets (A4/Letter)
Max. 20 sheets (Legal)
Effective scanning width Letter/Legal 8.42" (214 mm)
A4 8.19" (208 mm)
Scanning method Contact sensor scanning method
Scanning line density
Horizontal: 8 dot/mm (203.2 dpi) / 16 dot/mm (406.4 dpi)
Vertical: Standard 3.85 line/mm (97.79 dpi)
Fine 7.7 line/mm (195.58 dpi)
Superfine/Ultrafine 15.4 line/mm (391.16 dpi)
Scanning speed Standard 5 sec./page
Canon FAX Standard Chart No. 1 scanning
Image modes Halftone (PHOTO mode)
Scanning density adjustment 3 density level
Halftone 64-gradation error diffusion system (UHQ)

1-4
FAX-L350 Chapter 1: General Description
NOTE
Figure 1-1 Scanning Range
Item A4 Letter Legal
Effective scanning width 8.19" 8.42" 8.42"
(208 ±1.0 mm) (213.9 ±1.0 mm) (213.9 ±1.0 mm)
Effective scanning length 11.53"±0.12" 10.84"±0.12" 13.84"±0.12"
(293 ±3.0 mm) (275.4 ±3.0 mm) (351.6 ±3.0 mm)
Left margin 0.04" ±0.08" 0.04" ±0.08" 0.04" ±0.08"
(1.0 ±2.0mm) (1.0 ±2.0mm) (1.0 ±2.0 mm)
Right margin 0.04" ±0.10" 0.04" ±0.10" 0.04" ±0.10"
(1.0 ±2.5 mm) (1.0 ±2.5 mm) (1.0 ±2.5 mm)
Top margin 0.08" ±0.08" 0.08" ±0.08" 0.08" ±0.08"
(2.0 ±2.0 mm) (2.0 ±2.0 mm) (2.0 ±2.0 mm)
Bottom margin 0.08" ±0.08" 0.08" ±0.08" 0.08" ±0.08"
(2.0 ±2.0 mm) (2.0 ±2.0 mm) (2.0 ±2.0 mm)
Units are inches with mm shown in parentheses.
• Document scanning width “A4/LTR” is set in service data #1 SSSW SW06, bit4.
• Skew area is not taken into consideration.
• The feed precision of the original is included in the scanning range values.
Scanning range
Sheet dimensions (W ´L)
Maximum 8.58" ´14.41" (218 mm ´336 mm)
Minimum 3.5" ´1.75" (88.9 mm ´63.5 mm)
Thickness
multiple pages: 0.002" ~ 0.005" (0.06 mm ~ 0.13 mm)
40~90 g/m2
1 pages: 0.002" ~ 0.017" (0.06 mm ~ 0.43 mm)
34.7~340 g/m2
SCANNING RANGE
SCANNING DROP
OUT RANGE
Right marginLeft margin
Top margin
Bottom margin
Effective scanning width
Effective scanning length
Document leading edge
Document trailing edge

1-5
FAX-L350 Chapter 1: General Description
2.4 Printer Specification
Printing method LASER Beam Printer
Printing Cartridge
Products name Canon FX3 Cartridge
Product code H11-6381-001
Valid period Displayed on carton (2.5 years from date of manufacture)
Storage conditions Temperature from 32.0°F to 95.0°F (0°C to 35°C)
Humidity from 35% to 85% RH
Yield Approx. 2700 pages (black rate 4% chart)
Toner detection Yes (Toner out detect )
Printing speed Approx. 6 pages/minute
Printing resolution Standard 8 dots/mm ´3.85 line/mm
Fine 8 dots/mm ´7.7 line/mm
Superfine 8 dots/mm´15.4 line/mm
Ultrafine 16 dots/mm ´15.4 line/mm
Paper output tray stacking (when using the recommended paper)
Face down delivery slot Approx. 50 sheets
Face up delivery slot 1 sheet
Paper tray
Paper supply method ASF (Auto Sheet Feeder)
Kind of paper tray MULTI-PURPOSE TRAY
Paper capacity Max. 0.40" (10 mm) thickness
Plain Paper Lavel Paper Envelopes Transparency
MULTI-PURPOSE TRAY Approx. 100 sheets Approx. 70 sheets Approx. 7 envelopes 1 sheet
Paper cassette capacity
1.08" (27.5 mm) or less in stacking height (Approx. 250 sheets)
Recommended paper
KANGAS
Weight 80 g/m2
Paper size A4
Manufactured by KANGAS
NEUSIEDLER Canon Paper
Weight 80 g/m2
Paper size A4
Manufactured by NEUSIEDLER

1-6
FAX-L350 Chapter 1: General Description
NOTE
Printing range
Paper dimensions (W ´L)
Maximum 8.50" ´14.02" (216 mm ´356 mm)
Minimum 3.64" ´5.0" (92.4 mm ´127 mm)
Letter 8.50" ´10.98" (216 mm ´279 mm)
Legal 8.50" ´14.02" (216 mm ´356 mm)
A4 8.27" ´11.69" (210 mm ´297 mm)
Thickness
MULTI-PURPOSE TRAY 64~90g/m2
MANUAL FEED SLOT 64~105g/m2
Figure 1-2 Printing Range
Item A4 Letter Legal
Effective printing width 8.11" ±0.08" 8.19" ±0.08" 8.19" ±0.08"
(206 ±2.0 mm) (207.9 ±2.0 mm) (207.9 ±2.0 mm)
Effective printing length 11.38" ±0.12" 10.69" ±0.12" 13.69" ±0.14"
(289 ±3.0 mm) (271.4 ±3.0 mm) (347.6 ±3.5 mm)
Left margin 0.08" ±0.08" 0.16" ±0.08" 0.16" ±0.08"
(2.0 ±2.0 mm) (4.0 ±2.0 mm) (4.0 ±2.0 mm)
Right margin 0.08" ±0.12" 0.16" ±0.12" 0.16" ±0.12"
(2.0 ±3.0 mm) (4.0 ±3.0 mm) (4.0 ±3.0 mm)
Top margin 0.08" ±0.08" 0.08" ±0.08" 0.08" ±0.08"
(2.0 ±2.0 mm) (2.0 ±2.0 mm) (2.0 ±2.0 mm)
Bottom margin 0.24"±0.16" 0.24"±0.16" 0.24"±0.18"
(6.0 ±4.0 mm) (6.0 ±4.0 mm) (6.0 ±4.5 mm)
Units are inches with mm shown in parentheses.
• The header is printed in the printing range.
• Skew area is not taken into consideration.
• The feed precision of the original is included in the scanning range values.
• Print area when all-black pattern from Test Print modes are outputted.
Paper trailing edge
PRINTING RANGE
PRINTING DROP OUT RANGE
Right marginLeft margin
Top margin
Bottom margin
Effective scanning width
Paper leading edge
Effective scanning length

1-7
FAX-L350 Chapter 1: General Description
NOTE
2.5 Copy Specifications
Color copy None
Multiple copy 99 copies
Copy resolution Scanning 600 dpi ´600 dpi (direct copy)
300 dpi ´600 dpi (memory copy)
Printing 600 dpi ´600 dpi
Copy magnification ratio 100%, 90%, 80%, 70%
• When one copy is specified at a magnification ratio of 100%, the direct copy mode is
entered. When two or more copies are specified, the memory copy mode is entered.
• When the magnification ratio is 90%, 80% or 70%, the memory copy mode is entered.
• When long originals are scanned in the direct copy mode, only the area that can be printed
on a single page is copied, and copies are not made over multiple pages.
2.6 Interface Specifications
The parallel interface sends 8 bits (one byte) of data at one time and is transistor-transistor-logic (TTL)
compatible.
Interface type
IEEE P1284/Bi-directional parallel
Data transmission
8-bit parallel interface (IBM PC or compatible)
Synchronizing signal
STROBE signal from the computer
Handshake
BUSY/ACKNLG
Interface connectors
Printer side Amphenol 57-40360 or equivalent
Cable side Amphenol 57-30360 or equivalent
Recommended interface cable
Type Twisted-pair shielded cable
Material AWG No.28 or larger
Length Up to 6.56 feet (2.0 m)
Signal voltage levels
Low level 0.0 V to +0.4 V
High level +2.4 V to +5.0 V