Canon iR1600 Series User manual

iR1600/iR2000
REVISION 1
JAN. 2002
COPYRIGHT © 2002 CANON INC. 2001 CANON iR1600/iR2000 REV.1 JAN. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
FY8-13HJ-010

Application
This manual has been issued by Canon 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 contents of this manual, Canon will release technical 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 edition 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 used in this manual are the registered trade-
marks 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 © 2002 CANON INC. CANON iR1600/iR2000 REV.1 JAN. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
Caution
Use of this manual should be strictly supervised to avoid disclosure of confidential information.
COPYRIGHT © 2002 CANON INC.
Printed in Japan
Imprimé au Japon

COPYRIGHT © 2002 CANON INC. 2001 2001 2001 2001 CANON iR1600/iR2000 REV.1 JAN. 2002
i
INTRODUCTION
1 Symbols Used
This documentation uses the following symbols to indicate special information:
Symbol Description
Refers to the Copier Basics Series for a better understanding of the contents.
Provides a description of the nature of an error indication.
Provides a description of a service mode.
Indicates an item of reference assisting the understanding of the topic in ques-
tion.
REF.
Indicates an item intended to provide notes assisting the understanding of the
topic in question.
Memo
Indicates an item requiring disconnection of the power plug from the electric
outlet.
Indicates an item prohibiting disassembly to avoid electric shocks or problems.
Indicates an item requiring care to avoid combustion (fire).
Indicates an item requiring care to avoid electric shocks.
Indicates an item of a non-specific nature, possibly classified as Note, Caution,
or Warning.

COPYRIGHT © 2002 CANON INC. 2001 2001 2001 2001 CANON iR1600/iR2000 REV.1 JAN. 2002
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INTRODUCTION
2 Outline of the Manual
This Service Manual provides basic facts and figures needed to service the iR1600/
iR2000. Of the machine’s accessories, this manual covers the cassette unit and inner 2-way
tray; for other accessories including the ADF, see its own Service Manual.
In this manual, the 1-Cassette Unit-F1, 2-Cassette Unit-G1 and 3-Cassette Unit-H1 are
collectively called “cassette unit,” and the Inner 2-Way Tray-B1 is referred to as the inner 2-
way tray.
This Service Manual consists of the following chapters:
Chapter 1 Introduction: features, specifications, operation, system construc-
tion, routine maintenance by the user, safety, repro-
duction processes
Chapter 2 Basic Operation: basic operation, outline of electrical circuitry, basic
sequence
Chapter 3 Image Reading/
Processing System: principles of operation of the exposure system, prin-
ciples of operation of the image processing system,
timing of operation; disassembly/assembly and ad-
justment
Chapter 4 Laser Exposure System: principles of operation of the image formation sys-
tem, timing of operation; disassembly/assembly
Chapter 5 Image formation system: standards, adjustments, troubleshooting tables
Chapter 6 Pickup/Feeding System: principles of operation of the pickup/feeding sys-
tem, timing of operation; disassembly/assembly and
adjustment
Chapter 7 Fixing System: principles of operation of the fixing system, timing
of operation; disassembly/assembly and adjustment
Chapter 8 Externals and Auxiliary
Control System: principles of operation of the externals/auxiliary
control system, timing of operation; disassembly/
assembly and adjustment
Chapter 9 Cassette Unit: principles of operation of the pickup system; disas-
sembly/assembly and adjustments
Chapter 10 Inner 2-Way Tray: principles of operation; disassembly/assembly and
adjustment
Chapter 11 Installation: site requirements and installation procedure
Chapter 12 Maintenance and
Inspection: table of periodically replaced parts, table of
durables, scheduled servicing chart
Chapter 13 Troubleshooting: maintenance and inspection, standards/adjustment,
troubleshooting image faults/malfunctions; service
mode, self diagnosis
Chapter 14 Version up: version up
Appendix: general timing chart, general circuit diagram

COPYRIGHT © 2002 CANON INC. 2001 2001 2001 2001 CANON iR1600/iR2000 REV.1 JAN. 2002
iii
INTRODUCTION
The descriptions are subject to change for product improvement, and major changes will
be communicated in the form of Service Information bulletins.
All service persons are expected to go through the contents of this Service Manual and
Service Information bulletins and have a good understanding of the machine, readying
themselves to promptly respond to the needs of the field (i.e., identifying and correcting
faults).

COPYRIGHT © 2002 CANON INC. 2001 2001 2001 2001 CANON iR1600/iR2000 REV.1 JAN. 2002
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INTRODUCTION
The descriptions in this Service Manual are based on he following rules:
1. In each chapter, the uses of the function in question and its relationship to electrical and
mechanical systems are discussed and the timing of operation of its associated parts is
explained by means of outlines and diagrams.
In the diagrams, the symbol represents a mechanical path, while the symbol
with a name next to it indicates the flow of an electric signal.
The expression “turn on the power” means turning on the power switch, closing the
front door, and closing the delivery door so that the machine will be supplied with
power.
2. In circuit diagrams (digital), a signal whose level is High is expressed as being ‘1’,
while a single whose level is Low is expressed as being ‘0’; the level of voltage, how-
ever, varies from circuit to circuit.
The machine uses CPUs, whose internal mechanisms cannot be checked in the field,
and, therefore, are not explained. In addition, the machine’s PCBs are not intended for
repairs at the user’s and, therefore, are explained by means of block diagrams: two types
are used, i.e., between sensors and inputs of PCBs equipped with a control or drive func-
tion and between outputs equipped with a control or drive function and loads; in addi-
tion, functional block diagrams are used at times.
Changes made to the machine for product improvement are communicated in the form of
a Service Information bulletin as needed. All service persons are expected to go through all
service documentation including the bulletins and be equipped to respond to the needs of the
field (as by being able to identify possible causes of problems).

COPYRIGHT © 2002 CANON INC. 2001 2001 2001 2001 CANON iR1600/iR2000 REV.1 JAN. 2002
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INTRODUCTION
System Configuration
1. The machine may be configured as follows with its accessories (except the original/pa-
per feed device and boards):
F1 F2
[1] ADF-J1
[2] Finisher-L1 (if PDL output, requires hard disk.)
[3] Inner 2-Way Tray-B1
[4] 1-Cassette Unit-F1 (iR1600 only)
[5] 2-Cassette Unit-G1 (iR2000 only)
[6] 3-Cassette Unit-H1 (iR1600 only)
[7] Card Reader-E1
[2]
[1]
[6]
[5]
[3]
[4] [7]

COPYRIGHT © 2002 CANON INC. 2001 2001 2001 2001 CANON iR1600/iR2000 REV.1 JAN. 2002
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INTRODUCTION
2. The machine may be configured with the following accessory boards:
F3
[1] Printer Board-N1*
[2] Ethernet Network Interface Adapter iN-E5*
[3] Hard Disk HD-65
[4] Flash ROM Module FR-65
* : standard if printer model
Printer
Board
Ethernet
Board
Centronics interface
or USB interface
Hard
Disk
LAN interface
: Internal interface
: External interface
[3]
Flash ROM [2]
[1]
[4]

COPYRIGHT © 2002 CANON INC. 2001 2001 2001 2001 CANON iR1600/iR2000 REV.1 JAN. 2002
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INTRODUCTION
<Points to Note When Turning Off the Power Switch>
Be sure to turn off the power switch and disconnect the power plug before starting disas-
sembly/assembly work; further, keep the following in mind:
1. If you turn off the main power switch while a printer function is in use, the data being
processed can be lost. Check to be sure that the online LED in the control panel is OFF
before operating the power switch.
2. Do not turn off the power switch while downloading is taking place; otherwise, the ma-
chine may fail to operate.
3. Remember that not all power will be removed in response to the opening of the front
cover as long as the power switch remains ON.
4. Be sure to use SHUT DOWN MENU to shut down the printer if the Hard Disk HD-65
(accessory) has been installed.
[2]
[1]
F4
[1] Power switch
[2] Online LED

COPYRIGHT © 2002 CANON INC. 2001 2001 2001 2001 CANON iR1600/iR2000 REV.1 JAN. 2002
viii
CONTENTS
Contents
CHAPTER 1 INTRODUCTION
1 Features ............................................... 1-1
1.1 Features ...................................... 1-1
2 Specifications ...................................... 1-1
2.1 Copier ......................................... 1-3
2.1.1 Type ..................................... 1-3
2.1.2 System ................................. 1-3
2.1.3 Functions ............................. 1-4
2.1.4 Others .................................. 1-6
2.2 Cassette Unit .............................. 1-8
2.3 Inner 2-Way Tray ....................... 1-9
3 Names of Parts .................................. 1-10
3.1 External View ........................... 1-10
3.1.1 Copier ................................ 1-10
3.1.2 Cassette Unit ...................... 1-12
3.1.3 Inner 2-Way Tray ............... 1-13
3.2 Cross Section ........................... 1-14
3.2.1 Copier ................................ 1-14
3.2.2 Cassette Unit ...................... 1-16
3.2.3 Inner 2-Way Tray ............... 1-17
4 Control Panel .................................... 1-18
4.1 Control Panel ........................... 1-18
4.2 Basic Operation........................ 1-21
4.3 Extended Operation ................. 1-21
4.4 User Mode................................ 1-22
5 Cleaning by the User ........................ 1-30
5.1 Cleaning by the User ............... 1-30
5.1.1 Cleaning the
Fixing Roller ...................... 1-30
5.1.2 Cleaning the Copyboard Glass,
Reading Glass, and Copyboard
Cover White Plate ............. 1-32
6 Safety and Warnings ......................... 1-33
6.1 Safety of Laser Light ............... 1-33
6.2 CDRH Requirements ............... 1-33
6.3 Handling the Laser Unit ........... 1-34
6.4 Safety of the Toner ................... 1-35
7 Reproduction Processes .................... 1-36
7.1 Outline ..................................... 1-36
1 Basic Operation .................................. 2-1
1.1 Functional Construction ............. 2-1
1.2 Outline of Electrical Circuitry ... 2-2
1.2.1 Image Processor PCB .......... 2-2
1.2.2 DC Controller PCB.............. 2-3
1.2.3 Power Supply PCB .............. 2-5
1.2.4 Analog Processor PCB ........ 2-5
1.3 Inputs to and Outputs from
Electrical Components ................ 2-6
1.3.1 Wiring Diagram of the Major
PCBs .................................... 2-6
1.3.2 Wiring Diagram of the Electri-
cal Components (1/2) .......... 2-7
1.3.3 Wiring Diagram of Electrical
Components (2/2) ................ 2-8
1.4 Basic Sequence of Operation ..... 2-9
1.4.1 Outline ................................. 2-9
1.4.2 Basic Sequence of Operation
(power-on) ......................... 2-10
1.4.3 Basic Sequence of Operation
(printing) ............................ 2-11
1.5 Controlling the Main Motor
(M101) ..................................... 2-13
1.5.1 Outline ............................... 2-13
CHAPTER 2 BASIC OPERATION