Canon iR2030 User manual

Aug 8 2007
Service Manual
iR2030/2025/2022/2018 Series

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 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 © 2001 CANON INC.
Printed in Japan
Caution
Use of this manual should be strictly supervised to avoid disclosure of confidential information.

Introduction
Symbols Used
This documentation uses the following symbols to indicate special information:
Symbol Description
Indicates an item of a non-specific nature, possibly classified as Note, Caution, or Warning.
Indicates an item requiring care to avoid electric shocks.
Indicates an item requiring care to avoid combustion (fire).
Indicates an item prohibiting disassembly to avoid electric shocks or problems.
Indicates an item requiring disconnection of the power plug from the electric outlet.
Indicates an item intended to provide notes assisting the understanding of the topic in question.
Indicates an item of reference assisting the understanding of the topic in question.
Provides a description of a service mode.
Provides a description of the nature of an error indication.
Memo
REF.

Introduction
The following rules apply throughout this Service Manual:
1. Each chapter contains sections explaining the purpose of specific functions and the relationship between electrical and mechanical systems with refer-
ence to the timing of operation.
In the diagrams, represents the path of mechanical drive; where a signal name accompanies the symbol , the arrow indicates the
direction of the electric signal.
The expression "turn on the power" means flipping on the power switch, closing the front door, and closing the delivery unit door, which results in
supplying the machine with power.
2. In the digital circuits, '1'is used to indicate that the voltage level of a given signal is "High", while '0' is used to indicate "Low".(The voltage value, how-
ever, differs from circuit to circuit.) In addition, the asterisk (*) as in "DRMD*" indicates that the DRMD signal goes on when '0'.
In practically all cases, the internal mechanisms of a microprocessor cannot be checked in the field. Therefore, the operations of the microprocessors
used in the machines are not discussed: they are explained in terms of from sensors to the input of the DC controller PCB and from the output of the
DC controller PCB to the loads.
The descriptions in this Service Manual are subject to change without notice for product improvement or other purposes, and major changes will be com-
municated in the form of Service Information bulletins.
All service persons are expected to have a good understanding of the contents of this Service Manual and all relevant Service Information bulletins and be
able to identify and isolate faults in the machine."

Contents
Contents
Chapter 1 Introduction
1.1 System Construction ..................................................................................................................................1- 1
1.1.1 Pickup/Delivery/Original Handling Accessories System Configuration (iR2018).....................................................1-1
1.1.2 Pickup/Delivery/Original Handling Accessories System Configuration (iR2018i)....................................................1-2
1.1.3 Pickup/ Delivery /Original Handling Accessories System Configuration (iR2022/iR2022N/iR2025/iR2030)...........1- 3
1.1.4 Pickup/Delivery/Original Handling Accessories System Configuration (iR2022i/iR2022K/iR2025i/iR2030i)...........1- 4
1.1.5 Reader Heater/Cassette Heater System Configuration (iR2018/iR2022/iR2022N) ................................................1- 5
1.1.6 Reader Heater/Cassette Heater System Configuration (iR2018i)...........................................................................1- 6
1.1.7 Reader Heater/Cassette Heater System Configuration (iR2022K/iR2022i/iR2025/iR2025i/iR2030/iR2030i).........1- 7
1.1.8 Printing/Transmitting Accessories System Configuration (iR2018/ir2022/iR2022N)...............................................1- 8
1.1.9 Printing/Transmitting Accessories System Configuration (iR2018i/iR2022i/iR2022K/iR2025/iR2025i/iR2030/iR2030i)
1- 9
1.1.10 Functions of the Printing/Transmission Functions (iR2018/iR2022/iR2022N).....................................................1- 10
1.1.11 Functions of the Printing/Transmission Functions (iR2018i/iR2022i/iR2022K/iR2025/iR2025i/IR2030/iR2030i) 1- 10
1.2 Product Specifications..............................................................................................................................1- 10
1.2.1 Names of Parts......................................................................................................................................................1- 10
1.2.1.1 External View (iR2030i/iR2025i/iR2022i)...............................................................................................................................1- 10
1.2.1.2 External View (iR2020/iR2020N/iR2030/iR2025) .................................................................................................................. 1- 11
1.2.1.3 External View (iR2018i) ......................................................................................................................................................... 1- 11
1.2.1.4 External View (iR2018) .......................................................................................................................................................... 1- 12
1.2.1.5 Cross-Section ........................................................................................................................................................................ 1- 12
1.2.2 Using the Machine.................................................................................................................................................1- 13
1.2.2.1 Turning On the Power Switch (iR2018/iR2022/iR2022N)......................................................................................................1- 13
1.2.2.2 Turning On the Power Switch (iR2018i/iR2020i/iR2020K/iR2025/iR2025i/iR2030/iR2030i) .................................................1- 14
1.2.2.3 When Turning Off the Main Power Switch (iR2018/iR2022/iR2022N)................................................................................... 1- 15
1.2.2.4 When Turning Off the Main Power Switch (iR2018i/iR2022i/iR2022K/iR2025/iR2025i/iR2030/iR2030i) .............................. 1- 16
1.2.2.5 Control Panel ......................................................................................................................................................................... 1- 17
1.2.3 User Mode Items...................................................................................................................................................1- 18
1.2.3.1 Common Settings (iR2030i/iR2030/iR2025i/iR2025/iR2022i/iR2018i) ..................................................................................1- 18
1.2.3.2 Timer Settings (iR2030i/iR2030/iR2025i/iR2025/iR2022i/iR2018i)........................................................................................1- 19
1.2.3.3 Adjustment/Cleaning (iR2030i/iR2030/iR2025i/iR2025/iR2022i/iR2018i)..............................................................................1- 19
1.2.3.4 Report Settings (iR2030i/iR2030/iR2025i/iR2025/iR2022i/iR2018i) ......................................................................................1- 19
1.2.3.5 System Settings (iR2030i/iR2030/iR2025i/iR2025/iR2022i/iR2018i).....................................................................................1- 20
1.2.3.6 Copy Settings (iR2030i/iR2030/iR2025i/iR2025/iR2022i/iR2018i)......................................................................................... 1- 21
1.2.3.7 Communication Settings (iR2030i/iR2030/iR2025i/iR2025/iR2022i/iR2018i)........................................................................1- 21
1.2.3.8 Printer Settings (iR2030i/iR2030/iR2025i/iR2025/iR2022i/iR2018i) ......................................................................................1- 22
1.2.3.9 Address Book Settings (iR2030i/iR2030/iR2025i/iR2025/iR2022i/iR2018i)........................................................................... 1- 23
1.2.3.10 Recommended setting of system management information................................................................................................1- 23
1.2.3.11 The Reference Information of the Department ID Management..........................................................................................1- 23
1.2.4 Maintenance by the User.......................................................................................................................................1- 23
1.2.4.1 User Maintenance Items........................................................................................................................................................1- 23
1.2.4.2 Cleaning (LCD type) ..............................................................................................................................................................1- 24
1.2.4.3 Cleaning (Touch panel type).................................................................................................................................................. 1- 25
1.2.5 Safety ....................................................................................................................................................................1- 26
1.2.5.1 Safety of the Laser Light........................................................................................................................................................1- 26
1.2.5.2 CDRH Regulations.................................................................................................................................................................1- 26
1.2.5.3 Handling the Laser Unit ........................................................................................................................................................1- 26
1.2.5.4 Handling the Laser Unit .........................................................................................................................................................1- 27
1.2.5.5 Safety of Toner ......................................................................................................................................................................1- 28
1.2.5.6 Point to Note about Fire......................................................................................................................................................... 1- 28
1.2.5.7 Cautions as to the replacement and disposal of lithium battery.............................................................................................1- 28
1.2.6 Product Specifications...........................................................................................................................................1- 29
1.2.6.1 Product Specifications ...........................................................................................................................................................1- 29

Contents
1.2.7 Function List...........................................................................................................................................................1- 30
1.2.7.1 Printing Speed (iR2030/iR2030i) ........................................................................................................................................... 1- 30
1.2.7.2 Printing Speed (iR2025/iR2025i) ........................................................................................................................................... 1- 31
1.2.7.3 Printing Speed (iR2022/iR2022i/iR2022K/iR2022N)) ............................................................................................................1- 32
1.2.7.4 Printing Speed (iR2018/iR2018i/iR2018N) ............................................................................................................................1- 34
1.2.7.5 Types of Paper....................................................................................................................................................................... 1- 35
Chapter 2 Installation
2.1 Making Pre-Checks....................................................................................................................................2- 1
2.1.1 Selecting the Site of Installation...............................................................................................................................2- 1
2.1.2 Before Starting the Work (230V CENV)...................................................................................................................2- 1
2.1.3 Before Starting the Work (230V CENV)...................................................................................................................2- 4
2.2 Unpacking and Installation .........................................................................................................................2- 6
2.2.1 Unpacking and Removing the Packaging Materials ................................................................................................2- 6
2.2.2 Unpacking and Removing the Packaging Materials ................................................................................................2- 6
2.2.3 Installing the Drum Unit............................................................................................................................................2- 6
2.2.4 Installing the Toner Bottle........................................................................................................................................2- 8
2.2.5 Installing the Toner Bottle........................................................................................................................................2- 9
2.2.6 Setting the Cassettes.............................................................................................................................................2- 10
2.2.7 Attaching the Ferrite Core......................................................................................................................................2- 11
2.2.8 Checking the Image Quality...................................................................................................................................2- 11
2.2.9 Setting the Country/Region....................................................................................................................................2- 11
2.2.10 Setting the Country/Region..................................................................................................................................2- 11
2.2.11 Setting the Date and Time ...................................................................................................................................2- 12
2.2.12 Setting the Date and Time ...................................................................................................................................2- 13
2.2.13 Attaching Other Parts...........................................................................................................................................2- 14
2.3 Checking the Connection to the Network.................................................................................................2- 15
2.3.1 Checking the Network Connection.........................................................................................................................2- 15
2.3.2 Checking the Network Connection.........................................................................................................................2- 16
2.4 Flow of Accessory Installation..................................................................................................................2- 17
2.4.1 Flow of Accessary Installation (230V CENV).........................................................................................................2- 17
2.4.2 Flow of Accessary Installation (230V CENV).........................................................................................................2- 18
2.5 Installing the Card Reader........................................................................................................................2- 19
2.5.1 Points to Note ........................................................................................................................................................2- 19
2.5.2 Checking the Contents...........................................................................................................................................2- 19
2.5.3 Installation Procedure............................................................................................................................................2- 21
2.5.4 Registering the Card IDs........................................................................................................................................2- 26
2.5.5 Registering the Card IDs........................................................................................................................................2- 28
2.6 Installing the Heater PCB.........................................................................................................................2- 29
2.6.1 Preparing the parts ................................................................................................................................................2- 29
2.6.2 Preparing the Host Machine ..................................................................................................................................2- 29
2.6.3 Installing the Heater PCB.......................................................................................................................................2- 32
2.7 Installing the Reader Heater.....................................................................................................................2- 35
2.7.1 Preparing the parts ................................................................................................................................................2- 35
2.7.2 Installing the Reader Heater Harness....................................................................................................................2- 36
2.7.3 Removing Reader Components.............................................................................................................................2- 41
2.7.4 Removing Parts at the Left of the Reader..............................................................................................................2- 41
2.7.5 Installing the Reader Heater..................................................................................................................................2- 43
2.8 Installing the Cassette Heater ..................................................................................................................2- 47
2.8.1 Preparing the parts ................................................................................................................................................2- 47
2.8.2 Installing the Cassette Heater................................................................................................................................2- 48
2.9 Installing the Control Card Cable .............................................................................................................2- 51
2.9.1 Preparing the parts ................................................................................................................................................2- 51
2.9.2 Installing the Control Card Cable...........................................................................................................................2- 52

Contents
Chapter 3 Main Controller
3.1 Construction ...............................................................................................................................................3- 1
3.1.1 Construction and Mechanisms................................................................................................................................3- 1
3.2 Construction of the Electrical Circuitry........................................................................................................3- 1
3.2.1 Image Processor PCB.............................................................................................................................................3- 1
3.3 Image Processing.......................................................................................................................................3- 2
3.3.1 Overview of the Image Flow....................................................................................................................................3- 2
3.3.2 Construction of the Image Processing Module........................................................................................................3- 3
3.3.3 Reader Unit Input Image Processing.......................................................................................................................3- 3
3.3.4 Compressio/ Extesion/ Editing Block......................................................................................................................3- 4
3.3.5 Printer unit Output Image Processing......................................................................................................................3- 4
3.4 Flow of Image Data ....................................................................................................................................3- 5
3.4.1 Flow of Image Data According to Copy Functions ..................................................................................................3- 5
3.4.2 Flow of Image Data for the SEND Function ............................................................................................................3- 5
3.4.3 Flow of Image Data for the Fax Transmission.........................................................................................................3- 6
3.4.4 Flow of Image Data for the Fax Reception Function ...............................................................................................3- 6
3.4.5 Flow of Image Data for the PDL Function ...............................................................................................................3- 7
3.5 Parts Replacement Procedure ...................................................................................................................3- 8
3.5.1 Main Controller PCB................................................................................................................................................3- 8
3.5.1.1 Preparation for Removing the Image Processor PCB .............................................................................................................3- 8
3.5.1.2 Removing the Image Processor PCB ......................................................................................................................................3- 8
3.5.1.3 Procedure after Replacing the Image Processor PCB...........................................................................................................3- 10
3.5.2 SDRAM..................................................................................................................................................................3- 10
3.5.2.1 Preparation for Removing the SDRAM..................................................................................................................................3- 10
3.5.2.2 Removing the SDRAM........................................................................................................................................................... 3- 11
Chapter 4 Original Exposure System
4.1 Construction ...............................................................................................................................................4- 1
4.1.1 Specifications, Control Methods, and Functions (iR2030i/iR2030/iR2025i/iR2025/iR2022i/iR2022) ......................4- 1
4.1.2 Specifications, Control Methods, and Functions (iR2018i/iR2018) .........................................................................4- 1
4.1.3 Major Components (iR2030i/iR2030/iR2025i/iR2025/iR2022i/iR2022)...................................................................4- 2
4.1.4 Major Components (iR2018i/iR2018)......................................................................................................................4- 3
4.1.5 Control System Configuration (iR2030i/iR2030/iR2025i/iR2025/iR2022i/iR2022) ..................................................4- 3
4.1.6 Control System Configuration (iR2018i/iR2018)......................................................................................................4- 4
4.1.7 Reader Controller PCB (iR2030i/iR2030/iR2025i/iR2025/iR2022i/iR2022).............................................................4- 5
4.1.8 Reader Controller PCB (iR2018i/iR2018)................................................................................................................4- 5
4.2 Basic Sequence..........................................................................................................................................4- 6
4.2.1 Basic Sequence at Power-on..................................................................................................................................4- 6
4.2.2 Basic Sequence after Depression of Start Key (Book mode, One Sheet of original)..............................................4- 7
4.2.3 Basic Sequence after Depression of Start Key (ADF Mode, One Sheet of Original)..............................................4- 7
4.3 Various Control...........................................................................................................................................4- 8
4.3.1 Controlling the Scanner Drive System.....................................................................................................................4- 8
4.3.1.1 Outline...................................................................................................................................................................................... 4- 8
4.3.1.2 Reader Motor Control .............................................................................................................................................................. 4- 9
4.3.2 Contact Image Sensor (CIS) ...................................................................................................................................4- 9
4.3.2.1 Outline...................................................................................................................................................................................... 4- 9
4.3.2.2 Analog Control Performed by the CIS (iR2022i/iR2022/iR2018i/iR2018)..............................................................................4- 10
4.3.2.3 Analog Control Performed by the CIS (iR2030i/iR2030/iR2025i/iR2025/iR2022i/iR2022) ....................................................4- 11
4.3.3 Enlargement/Reduction.........................................................................................................................................4- 11
4.3.3.1 Magnification Change in Vertical Scan Direction...................................................................................................................4- 11
4.3.3.2 Magnification Change in Horizontal Scan Direction...............................................................................................................4- 11
4.3.4 Detecting the Size of Originals..............................................................................................................................4- 11
4.3.4.1 Outline.................................................................................................................................................................................... 4- 11
4.3.4.2 Outline of Original Size Detection..........................................................................................................................................4- 12
4.3.5 Dirt Sensor Control................................................................................................................................................4- 13

Contents
4.3.5.1 Outline....................................................................................................................................................................................4- 13
4.3.6 Image Processing..................................................................................................................................................4- 15
4.3.6.1 Outline....................................................................................................................................................................................4- 15
4.3.6.2 CMOS Sensor Drive ..............................................................................................................................................................4- 16
4.3.6.3 CMOS Sensor Output Gain Correction and Offset Correction...............................................................................................4- 16
4.3.6.4 CMOS Sensor Output A/D Conversion..................................................................................................................................4- 16
4.3.6.5 Shading Correction (Outline) ................................................................................................................................................ 4- 16
4.3.6.6 Shading Adjustment............................................................................................................................................................... 4- 17
4.3.6.7 Shading Correction................................................................................................................................................................4- 17
4.4 Parts Replacement Procedure .................................................................................................................4- 18
4.4.1 Copyboard glass....................................................................................................................................................4- 18
4.4.1.1 Removing the Copyboard glass............................................................................................................................................. 4- 18
4.4.1.2 Procedure after Replacing the Copyboard Glass (Model equipped with ADF)......................................................................4- 18
4.4.1.3 Removing the ADF Reading Glass........................................................................................................................................4- 18
4.4.2 Reader Controller PCB..........................................................................................................................................4- 18
4.4.2.1 Removing the Reader Controller PCB................................................................................................................................... 4- 18
4.4.3 Scanner Motor .......................................................................................................................................................4- 20
4.4.3.1 Removing the Scanner Motor ................................................................................................................................................ 4- 20
4.4.4 Contact sensor.......................................................................................................................................................4- 20
4.4.4.1 Removing the Contact Image Sensor (CIS)...........................................................................................................................4- 20
4.4.4.2 Procedure after Replacing the CIS(Touch panel type)..........................................................................................................4- 20
4.4.5 Copyboard Cover Open/Close Sensor ..................................................................................................................4- 20
4.4.5.1 Removing the Copyboard Cover Open/Close Sensor (Front/Rear).......................................................................................4- 20
4.4.6 Contact Sensor HP Sensor....................................................................................................................................4- 21
4.4.6.1 Removing the Contact Sensor HP Sensor.............................................................................................................................4- 21
4.4.7 Original Size Sensor..............................................................................................................................................4- 21
4.4.7.1 Removing the Original Sensor (Vertical Scan Direction)....................................................................................................... 4- 21
4.4.7.2 Removing the Original Sensor (Horizontal Scan Direction)...................................................................................................4- 22
4.4.8 Reader Heater (option)..........................................................................................................................................4- 22
4.4.8.1 Removing the Reader Heater (Right) .................................................................................................................................... 4- 22
4.4.8.2 Removing the Reader Heater (Left)....................................................................................................................................... 4- 22
Chapter 5 Laser Exposure
5.1 Construction ...............................................................................................................................................5- 1
5.1.1 Overview..................................................................................................................................................................5- 1
5.1.2 Specifications and Control Mechanism....................................................................................................................5- 1
5.1.3 Main Components....................................................................................................................................................5- 1
5.1.4 Control System Configuration..................................................................................................................................5- 2
5.2 Various Controls.........................................................................................................................................5- 2
5.2.1 Controlling the Laser Activation Timing ...................................................................................................................5- 2
5.2.1.1 Laser Emission ON/OFF Control ............................................................................................................................................. 5- 2
5.2.1.2 Horizontal Synchronization Control..........................................................................................................................................5- 3
5.2.2 Controlling the Intensity of Laser Light.....................................................................................................................5- 3
5.2.2.1 Automatic Photocurrent Control (APC)....................................................................................................................................5- 3
5.2.3 Controlling the Laser Scanner Motor.......................................................................................................................5- 3
5.2.3.1 Laser Scanner Motor Control...................................................................................................................................................5- 3
5.2.4 Controlling the Laser Shutter...................................................................................................................................5- 4
5.2.4.1 Laser Shutter Control............................................................................................................................................................... 5- 4
5.3 Parts Replacement Procedure ...................................................................................................................5- 6
5.3.1 Laser Scanner Unit..................................................................................................................................................5- 6
5.3.1.1 Removing the Laser Scanner Unit...........................................................................................................................................5- 6
Chapter 6 Image Formation
6.1 Construction ...............................................................................................................................................6- 1
6.1.1 Specifications of Image Formation System..............................................................................................................6- 1
6.1.2 Major Components of Image Formation System .....................................................................................................6- 1