Canon Ir4570 series User manual

Jan 31 2005

Service Manual

iR4570/3570, 2870/2270 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.

reproduced or translated into another language, in whole or in part, without the written consent of 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 reference 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, however, 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 communicated 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

Chapter 1　Introduction

1.1 System Construction.......................................................................................................................................... 1- 1

1.1.1Overview of the System with a Delivery Accessory................................................................................... 1- 1

1.1.2Overview of System Construction (output accessories).............................................................................. 1- 1

1.1.3Delivery Accessory System Configuration 1 .............................................................................................. 1- 1

1.1.4Output Accessories System Configuration 1............................................................................................... 1- 3

1.1.5Delivery Accessory System Configuration 2 .............................................................................................. 1- 5

1.1.6Output Accessories System Configuration 2............................................................................................... 1- 7

1.1.7Delivery Accessory System Configuration 3 .............................................................................................. 1- 8

1.1.8Pickup/Original Handling Accessories System Configuration ................................................................... 1- 9

1.1.9Input/Original Handling Accessories System Configuration.................................................................... 1- 11

1.1.10Reader Heater System Configuration...................................................................................................... 1- 13

1.1.11Cassette Heater System Configuration 1................................................................................................. 1- 13

1.1.12Cassette Heater System Configuration 2................................................................................................. 1- 14

1.1.13Side Deck Heater System Configuration................................................................................................. 1- 15

1.1.14Printing/Transmitting Accessories System Configuration ...................................................................... 1- 17

1.1.15List of Print Transmission Optional Functions ...................................................................................... 1- 18

1.1.16Printing/Transmission Accessories System Configuration ..................................................................... 1- 19

1.1.17Functions of the Printing/Transmission Functions.................................................................................. 1- 20

1.2 Product Specifications..................................................................................................................................... 1- 22

1.2.1 Names of Parts .......................................................................................................................................... 1- 22

1.2.1.1 Names of Parts................................................................................................................................... 1- 22

1.2.1.2 External View.................................................................................................................................... 1- 23

1.2.1.3 Cross-Section..................................................................................................................................... 1- 25

1.2.2 Using the Machine .................................................................................................................................... 1- 28

1.2.2.1 Turning On the Power Switch ........................................................................................................... 1- 28

1.2.2.2 When Turning Off the Main Power Switch ...................................................................................... 1- 30

1.2.2.3 Points to Note About Turning Off the Main Power Switch .............................................................. 1- 31

1.2.2.4 Control Panel ..................................................................................................................................... 1- 33

1.2.2.5 Control Panel ..................................................................................................................................... 1- 34

1.2.3 User Mode Items....................................................................................................................................... 1- 35

1.2.3.1 Common Settings .............................................................................................................................. 1- 35

1.2.3.2 Common Settings .............................................................................................................................. 1- 39

1.2.3.3 Setting the Time ................................................................................................................................ 1- 43

1.2.3.4 Setting the Timer ............................................................................................................................... 1- 44

1.2.3.5 Adjustments and Cleaning................................................................................................................. 1- 44

1.2.3.6 Adjustment and Cleaning .................................................................................................................. 1- 45

1.2.3.7 Report Output .................................................................................................................................... 1- 45

1.2.3.8 Printing Out a Report......................................................................................................................... 1- 46

1.2.3.9 System Control Settings .................................................................................................................... 1- 47

1.2.3.10 System Control Settings .................................................................................................................. 1- 50

1.2.3.11 Copy Settings ............................................................................................................................... 1- 51

1.2.3.12 Transmission/Reception Settings　............................................................................................... 1- 52

Contents

1.2.3.13 Transmission/Reception Settings.....................................................................................................1- 54

1.2.3.14 Box Settings.....................................................................................................................................1- 56

1.2.3.15 Box Settings.....................................................................................................................................1- 57

1.2.3.16 Printer Settings.................................................................................................................................1- 57

1.2.3.17 Address Book Settings.....................................................................................................................1- 58

1.2.4 Maintenance by the User...........................................................................................................................1- 61

1.2.4.1 Cleaning .............................................................................................................................................1- 61

1.2.4.2 Inspection...........................................................................................................................................1- 61

1.2.5 Safety.........................................................................................................................................................1- 63

1.2.5.1 Safety of the Laser Light ...................................................................................................................1- 63

1.2.5.2 CDRH Regulations ............................................................................................................................1- 63

1.2.5.3 Handling the Laser Unit.....................................................................................................................1- 64

1.2.5.4 Safety of Toner ..................................................................................................................................1- 65

1.2.6 Product Specifications...............................................................................................................................1- 65

1.2.6.1 Product Specifications .......................................................................................................................1- 65

1.2.7 Function List .............................................................................................................................................1- 68

1.2.7.1 Printing Speed....................................................................................................................................1- 68

1.2.7.2 Printing Speed....................................................................................................................................1- 69

1.2.7.3 Types of Paper ...................................................................................................................................1- 71

1.2.7.4 Types of Paper ...................................................................................................................................1- 72

Chapter 2　Installation

2.1 Making Pre-Checks ...........................................................................................................................................2- 1

2.1.1Selecting the Site of Installation .................................................................................................................2- 1

2.1.2Before Starting the Work (230V) ................................................................................................................2- 3

2.2 Unpacking and Installation ................................................................................................................................2- 8

2.2.1Unpacking and Removing the Packaging Materials....................................................................................2- 8

2.2.2Installing the Toner Bottle...........................................................................................................................2- 9

2.2.3Installing the Drum Unit............................................................................................................................2- 10

2.2.4Securing the Copier Main Unit..................................................................................................................2- 14

2.2.5Connecting the Cable.................................................................................................................................2- 15

2.2.6Stirring Toner.............................................................................................................................................2- 15

2.2.7Setting the Cassettes ..................................................................................................................................2- 15

2.2.8APVC Correction of the Drum ..................................................................................................................2- 16

2.2.9Adjusting the Image Position.....................................................................................................................2- 17

2.2.10Attaching Other Parts ..............................................................................................................................2- 20

2.2.11If Not Connected to a Network................................................................................................................2- 21

2.3 Checking the Connection to the Network........................................................................................................2- 23

2.3.1Overview....................................................................................................................................................2- 23

2.3.2Using the PING Function ..........................................................................................................................2- 23

2.3.3Making a Check Using a Remote Host Address .......................................................................................2- 23

2.4 Troubleshooting the Network ..........................................................................................................................2- 25

2.4.1Overview....................................................................................................................................................2- 25

2.4.2Making a Check Using a Loopback Address ............................................................................................2- 25

2.4.3Making a Check Using a Local Host Address...........................................................................................2- 25

2.5 Checking the Images/Operations.....................................................................................................................2- 26

2.5.1Checking the Image Quality and Operation ..............................................................................................2- 26

2.6 Installing the Card Reader ...............................................................................................................................2- 27

Contents

2.6.1Points to Note ............................................................................................................................................ 2- 27

2.6.2Checking the Contents............................................................................................................................... 2- 27

2.6.3Installation Procedure................................................................................................................................ 2- 28

2.6.4Installation in a NetSpot Accountant (NSA) Environment ....................................................................... 2- 32

2.7 Installing the NE Controller ............................................................................................................................ 2- 33

2.7.1Installing the NE Controller-A1 ................................................................................................................ 2- 33

Chapter 3　Basic Operation

3.1 Construction ...................................................................................................................................................... 3- 1

3.1.1Functional Construction .............................................................................................................................. 3- 1

3.1.2Major PCB Wiring diagram ........................................................................................................................ 3- 2

3.2 Basic Sequence.................................................................................................................................................. 3- 5

3.2.1Basic Sequence of Operation at Power-On ................................................................................................. 3- 5

Chapter 4　Main Controller

4.1 Construction ...................................................................................................................................................... 4- 1

4.1.1Construction and Mechanisms .................................................................................................................... 4- 1

4.1.2Construction and Functions......................................................................................................................... 4- 2

4.2 Construction of the Electrical Circuitry ............................................................................................................ 4- 4

4.2.1Main Controller PCB................................................................................................................................... 4- 4

4.2.2Main Controller PCB................................................................................................................................... 4- 5

4.2.3HDD ............................................................................................................................................................ 4- 7

4.2.4HDD (optional)............................................................................................................................................ 4- 9

4.3 Start-Up Sequence........................................................................................................................................... 4- 12

4.3.1Overview ................................................................................................................................................... 4- 12

4.3.2Start-Up Sequence..................................................................................................................................... 4- 12

4.4 Shut-Down Sequence ...................................................................................................................................... 4- 15

4.4.1Overview ................................................................................................................................................... 4- 15

4.4.2Overview (w/ HDD).................................................................................................................................. 4- 15

4.4.3Flow of Operation ..................................................................................................................................... 4- 15

4.4.4Flow of Operation (w/ HDD) .................................................................................................................... 4- 15

4.5 Image Processing............................................................................................................................................. 4- 17

4.5.1Overview of the Image Flow..................................................................................................................... 4- 17

4.5.2Construction of the Image Processing Module ......................................................................................... 4- 17

4.5.3Construction of the Image Processing Module ......................................................................................... 4- 18

4.5.4Reader Unit Input Image Processing......................................................................................................... 4- 19

4.5.5Compressio/ Extesion/ Editing Block ...................................................................................................... 4- 20

4.5.6Compression/Expansion/Edit Block.......................................................................................................... 4- 21

4.5.7Printer unit Output Image Processing ....................................................................................................... 4- 21

4.6 Flow of Image Data......................................................................................................................................... 4- 23

4.6.1Flow of Image Data According to Copy Functions .................................................................................. 4- 23

4.6.2Flow of Image Data for the Copy Function .............................................................................................. 4- 23

4.6.3Flow of Image Data for the Box Function ................................................................................................ 4- 24

4.6.4Flow of Image Data for the Box Function ................................................................................................ 4- 25

4.6.5Flow of Image Data for the SEND Function............................................................................................. 4- 25

4.6.6Flow of Image Data for the SEND Function............................................................................................. 4- 26

4.6.7Flow of Image Data for the Fax Transmission.......................................................................................... 4- 27

Contents

4.6.8Flow of Image Data for the Fax Transmission Function ...........................................................................4- 28

4.6.9Flow of Image Data for the Fax Reception Function ................................................................................4- 29

4.6.10Flow of Image Data for the Fax Reception Function ..............................................................................4- 30

4.6.11Flow of Image Data for the PDL Function..............................................................................................4- 31

4.6.12Flow of Image Data for the PDL Function..............................................................................................4- 32

4.7 Parts Replacement Procedure ..........................................................................................................................4- 33

4.7.1 Main Controller PCB ................................................................................................................................4- 33

4.7.1.1 Removing the Rear Cover..................................................................................................................4- 33

4.7.1.2 Removing the Main Controller PCB .................................................................................................4- 33

4.7.2 SDRAM.....................................................................................................................................................4- 34

4.7.2.1 Removing the Face Cover..................................................................................................................4- 34

4.7.2.2 Removing the SDRAM......................................................................................................................4- 34

4.7.3 Boot ROM .................................................................................................................................................4- 35

4.7.3.1 Removing the Face Cover..................................................................................................................4- 35

4.7.3.2 Removing the Boot ROM ..................................................................................................................4- 35

4.7.4 HDD ..........................................................................................................................................................4- 35

4.7.4.1 Removing the Face Cover..................................................................................................................4- 35

4.7.4.2 Removing the Face Cover (optional).................................................................................................4- 36

4.7.4.3 Removing the Counter PCB ..............................................................................................................4- 36

4.7.4.4 Removing the Counter PCB (optional)..............................................................................................4- 37

4.7.4.5 Removing the HDD ...........................................................................................................................4- 37

4.7.4.6 Removing the HDD (optional) ..........................................................................................................4- 37

Chapter 5　Original Exposure System

5.1 Construction.......................................................................................................................................................5- 1

5.1.1Specifications, Control Mechanisms, and Functions...................................................................................5- 1

5.1.2Major Components ......................................................................................................................................5- 2

5.1.3Construction of the Control System ............................................................................................................5- 4

5.1.4Reader Controller PCB ................................................................................................................................5- 5

5.2 Basic Sequence ..................................................................................................................................................5- 7

5.2.1Basic Sequence of Operation at Power-On .................................................................................................5- 7

5.2.2Basic Sequence of Operation in Response to a Press on the Start Key (book mode; 1 original)................5- 7

5.2.3Basic Sequence of Operation in Response to a Press on the Start Key (ADF mode; 1 original )...............5- 8

5.3 Various Control ...............................................................................................................................................5- 10

5.3.1 Controlling the Scanner Drive System......................................................................................................5- 10

5.3.1.1 Outline ...............................................................................................................................................5- 10

5.3.1.2 Controlling the Reader Motor............................................................................................................5- 10

5.3.2 Contact Image Sensor (CIS)......................................................................................................................5- 12

5.3.2.1 Outline ...............................................................................................................................................5- 12

5.3.2.2 Analog Control Inside the Contact Image Sensor .............................................................................5- 13

5.3.3 Enlargement/Reduction.............................................................................................................................5- 14

5.3.3.1 Changing the Magnification in Main Scanning Direction.................................................................5- 14

5.3.3.2 Varying the Magnification in Sub Scanning Direction .....................................................................5- 14

5.3.4 Detecting the Size of Originals .................................................................................................................5- 16

5.3.4.1 Outline ...............................................................................................................................................5- 16

5.3.4.2 Outline of Size Identification.............................................................................................................5- 17

5.3.5 Dirt Sensor Control ...................................................................................................................................5- 19

5.3.5.1 Outline ...............................................................................................................................................5- 19