Canon imageRUNNER 5065 series, imageRUNNER 5075 series, iR5055 Series, imageRUNNER 5055 series, iR5075 series Service Manual

Service Manual

iR5075/5065/5055 Series

Feb 26 2007

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.

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.

Memo

Introduction

REF.

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.

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

Contents

Chapter 1 Introduction

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

1.1.1 System Configuration with Pickup/Delivery Accessories (230V)OTHER ................................................................ 1- 1

1.1.2 System Configuration with Printing/Transmission Accessories (230V)OTHER ......................................................1- 1

1.1.3 Functions and Printing/Transmission Accessories (230V) ......................................................................................1- 2

1.2 Product Specifications ................................................................................................................................1- 3

1.2.1 Names of Parts........................................................................................................................................................1- 3

1.2.1.1 External view............................................................................................................................................................................ 1- 3

1.2.1.2 Cross-Section .......................................................................................................................................................................... 1- 4

1.2.2 Using the Machine...................................................................................................................................................1- 6

1.2.2.1 Turning On the Power Switch .................................................................................................................................................. 1- 6

1.2.2.2 Turning Off the Power Switch .................................................................................................................................................. 1- 6

1.2.2.3 Control Panel ........................................................................................................................................................................... 1- 8

1.2.3 User Mode Items .....................................................................................................................................................1- 8

1.2.3.1 Common Settings .................................................................................................................................................................... 1- 8

1.2.3.2 Timer Settings .......................................................................................................................................................................... 1- 9

1.2.3.3 Adjustment/Cleaning................................................................................................................................................................ 1- 9

1.2.3.4 Report Output .......................................................................................................................................................................... 1- 9

1.2.3.5 System Control Settings ........................................................................................................................................................ 1- 10

1.2.3.6 Copier Specifications ............................................................................................................................................................. 1- 11

1.2.3.7 Transmission/Reception Settings .......................................................................................................................................... 1- 12

1.2.3.8 Box Settings........................................................................................................................................................................... 1- 13

1.2.3.9 Printer Settings ...................................................................................................................................................................... 1- 13

1.2.3.10 Address Book Settings ......................................................................................................................................................... 1- 14

1.2.3.11 Voice Guide Settings............................................................................................................................................................ 1- 15

1.2.4 Maintenance by the User.......................................................................................................................................1- 15

1.2.4.1 Cleaning ................................................................................................................................................................................. 1- 15

1.2.4.2 Checks ................................................................................................................................................................................... 1- 16

1.2.5 Safety ....................................................................................................................................................................1- 17

1.2.5.1 Safety of the Machine's Laser Unit ........................................................................................................................................ 1- 17

1.2.5.2 CDRH Regulations................................................................................................................................................................. 1- 17

1.2.5.3 Handling the Machine's Laser Unit ........................................................................................................................................ 1- 18

1.2.5.4 Safety of Toner ...................................................................................................................................................................... 1- 18

1.2.6 Product Specifications ...........................................................................................................................................1- 18

1.2.6.1 Product Specifications ........................................................................................................................................................... 1- 18

1.2.7 Function List ..........................................................................................................................................................1- 20

1.2.7.1 Paper Types........................................................................................................................................................................... 1- 20

1.2.7.2 Printing Speed ....................................................................................................................................................................... 1- 20

1.2.7.3 Paper Types/Printing Speed (K paper) .................................................................................................................................. 1- 21

Chapter 2 Installation

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

2.1.1 Selecting the installation space ...............................................................................................................................2- 1

2.1.2 Combination Table of Accessories..........................................................................................................................2- 2

2.1.3 Checking the Contents ............................................................................................................................................2- 3

2.2 Unpacking and Installation .........................................................................................................................2- 5

2.2.1 Unpacking and installation procedure .....................................................................................................................2- 5

2.2.2 Unpacking................................................................................................................................................................2- 5

2.2.3 Installation of Scanner .............................................................................................................................................2- 6

2.2.4 Installation of Fixing Assembly ................................................................................................................................2- 6

2.2.5 Checking of Charging Assembly and Dustproof Glass ...........................................................................................2- 7

2.2.6 Installation of Developing Assembly .......................................................................................................................2- 9

Contents

2.2.7 Installation of Pickup Assembly ..............................................................................................................................2- 9

2.2.8 Attaching Deck Pressure Plate .............................................................................................................................2- 10

2.2.9 Setting Toner Container ........................................................................................................................................2- 10

2.2.10 Connecting the Cable...........................................................................................................................................2- 10

2.2.11 Checking the Environment Switch .......................................................................................................................2- 11

2.2.12 Attaching the Label ..............................................................................................................................................2- 11

2.2.13 Connecting the Power Cord ................................................................................................................................2- 12

2.2.14 Turning On the Main Power Switch......................................................................................................................2- 12

2.2.15 Toner Stirring .......................................................................................................................................................2- 12

2.2.16 Media Cassette Settings ......................................................................................................................................2- 12

2.2.17 Index Paper Attachment.......................................................................................................................................2- 13

2.2.18 Changing the Media Size of the Front Deck (Left/Right)......................................................................................2- 13

2.2.19 Image/Operation Check in User Mode.................................................................................................................2- 13

2.2.20 Adjustment of Image Left End Margin..................................................................................................................2- 13

2.2.21 Adjustment of image leading edge margin...........................................................................................................2- 15

2.2.22 Mounting of the Host Machine .............................................................................................................................2- 15

2.3 Checking the Connection to the Network ................................................................................................. 2- 17

2.3.1 Overview................................................................................................................................................................2- 17

2.3.2 Checking the Connection to the Network...............................................................................................................2- 17

2.3.3 Using the Ping Command......................................................................................................................................2- 17

2.3.4 Making a Check Using the Remote Host Address.................................................................................................2- 17

2.4 Troubleshooting the Network ................................................................................................................... 2- 18

2.4.1 Troubleshooting the Network ................................................................................................................................2- 18

2.4.2 Checking the Connection of the Network Cable ...................................................................................................2- 18

2.4.3 Making a Check Using a Loopback Address ........................................................................................................2- 18

2.4.4 Making a Check Using a Local Host Address .......................................................................................................2- 18

2.5 Installing the Card Reader........................................................................................................................ 2- 18

2.5.1 Notice At Installation ..............................................................................................................................................2- 18

2.5.2 Confirming the contents.........................................................................................................................................2- 18

2.5.3 Power off of the host machine ...............................................................................................................................2- 19

2.5.4 Installation procedure.............................................................................................................................................2- 19

2.5.5 Installing for imageWARE Accounting Manager ....................................................................................................2- 21

2.6 Installing the Original Holder .................................................................................................................... 2- 22

2.6.1 Checking Contents ................................................................................................................................................2- 22

2.6.2 Installation Procedure ...........................................................................................................................................2- 22

2.6.3 Checking Contents ................................................................................................................................................2- 23

2.6.4 Installation Procedure ...........................................................................................................................................2- 23

2.7 Installing the Reader Heater..................................................................................................................... 2- 24

2.7.1 Checking the Contents...........................................................................................................................................2- 24

2.7.2 Power off of the host machine ...............................................................................................................................2- 24

2.7.3 Installation Procedure ............................................................................................................................................2- 24

2.8 Installing the Cassette Heater .................................................................................................................. 2- 28

2.8.1 Checking Components...........................................................................................................................................2- 28

2.8.2 Power off of the host machine ...............................................................................................................................2- 28

2.8.3 Installation Procedure of the Cassette Heater .......................................................................................................2- 28

2.9 Installing the Deck Heater ........................................................................................................................ 2- 33

2.9.1 Checking the Parts to Install ..................................................................................................................................2- 33

2.9.2 Turning Off the Host Machine................................................................................................................................2- 34

2.10 Installing the Deck Heater (Large Deck)................................................................................................. 2- 34

2.10.1 Checking the Parts to Install ................................................................................................................................2- 34

2.10.2 Turning Off the Host Machine ..............................................................................................................................2- 35

2.11 Installing the Voice Guidance Kit ............................................................................................................ 2- 35

2.11.1 A point to keep in mind at installation...................................................................................................................2- 35

2.11.2 Checking the Contents.........................................................................................................................................2- 35

2.11.3 Power off of the host machine..............................................................................................................................2- 36

Contents

2.11.4 Installation Procedure ..........................................................................................................................................2- 36

Chapter 3 Basic Operation

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

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

3.1.2 Wiring Diagram of the Major PCBs..........................................................................................................................3- 1

3.1.3 Controlling the Main Motor (M2) ..............................................................................................................................3- 2

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

3.2.1 Basic Sequence of Operation (at power-on; 30-sec start-up mode) .......................................................................3- 3

3.2.2 Basic Sequence of Operation (at power-on; low-temperature start-up mode) ........................................................3- 3

3.2.3 Basic Sequence of Operation (at power-on; high-humidity start-up mode) .............................................................3- 4

3.2.4 Basic Sequence of Operation (at time of copying/printing) .....................................................................................3- 5

Chapter 4 Main Controller

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

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

4.2 Construction of the Electrical Circuitry........................................................................................................ 4- 1

4.2.1 Main Controller PCB................................................................................................................................................4- 1

4.2.2 HDD.........................................................................................................................................................................4- 2

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

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

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

4.4 Shut-Down Sequence.................................................................................................................................4- 6

4.4.1 Overview..................................................................................................................................................................4- 6

4.4.2 Flow of Operation ....................................................................................................................................................4- 6

4.5 Image Processing .......................................................................................................................................4- 6

4.5.1 Overview of the Image Flow....................................................................................................................................4- 6

4.5.2 Construction of the Image Processing Module........................................................................................................4- 7

4.5.3 Reader Unit Input Image Processing.......................................................................................................................4- 7

4.5.4 Compression/ Extension/ Editing Block...................................................................................................................4- 8

4.5.5 Printer unit Output Image Processing......................................................................................................................4- 8

4.6 Flow of Image Data .................................................................................................................................... 4- 9

4.6.1 Flow of Image Data According to Copy Functions ..................................................................................................4- 9

4.6.2 Flow of Image Data for the Box Function ................................................................................................................4- 9

4.6.3 Flow of Image Data for the SEND Function ..........................................................................................................4- 10

4.6.4 Flow of Image Data for the Fax Transmission.......................................................................................................4- 10

4.6.5 Flow of Image Data for the Fax Reception Function .............................................................................................4- 11

4.6.6 Flow of Image Data for the PDL Function ............................................................................................................. 4- 11

4.7 Parts Replacement Procedure .................................................................................................................4- 13

4.7.1 Main Controller Box ...............................................................................................................................................4- 13

4.7.1.1 Before Removing the Main Controller Box............................................................................................................................. 4- 13

4.7.1.2 Removing the Main Controller Box ........................................................................................................................................ 4- 13

4.7.2 Main Controller PCB..............................................................................................................................................4- 13

4.7.2.1 Before Removing the Main Controller PCB ........................................................................................................................... 4- 13

4.7.2.2 Removing the Main Controller PCB ....................................................................................................................................... 4- 13

4.7.2.3 When Replacing the Main Controller PCB ............................................................................................................................. 4- 14

4.7.3 SDRAM..................................................................................................................................................................4- 14

4.7.3.1 Before Removing the SDRAM ............................................................................................................................................... 4- 14

4.7.3.2 Removing the SDRAM ........................................................................................................................................................... 4- 14

4.7.4 Boot ROM..............................................................................................................................................................4- 14

4.7.4.1 Before Removing the Boot ROM ........................................................................................................................................... 4- 14

4.7.4.2 Removing the Boot ROM ....................................................................................................................................................... 4- 14

4.7.5 HDD.......................................................................................................................................................................4- 15

4.7.5.1 Before Removing HDD .......................................................................................................................................................... 4- 15

4.7.5.2 Removing the HDD ................................................................................................................................................................ 4- 15

Contents

4.7.5.3 After Replacing the HDD........................................................................................................................................................ 4- 15

4.7.6 Video PCB .............................................................................................................................................................4- 15

4.7.6.1 Before Removing the Video PCB........................................................................................................................................... 4- 15

4.7.6.2 Removing the Video PCB ...................................................................................................................................................... 4- 15

4.7.7 Controller Fan ........................................................................................................................................................4- 16

4.7.7.1 Before Removing the Controller Cooling Fan ........................................................................................................................ 4- 16

4.7.7.2 Removing the Controller Cooling Fan .................................................................................................................................... 4- 16

Chapter 5 Original Exposure System

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

5.1.1 Specifications, Controls, and Functions...................................................................................................................5- 1

5.1.2 Major Components...................................................................................................................................................5- 1

5.1.3 Construction of the Control System .........................................................................................................................5- 2

5.1.4 Reader Controller PCB ............................................................................................................................................5- 3

5.2 Basic Sequence ......................................................................................................................................... 5- 4

5.2.1 Basic Sequence of Operations ................................................................................................................................5- 4

5.2.2 Basic Sequence of Operation in Response to a Press on the Start Key .................................................................5- 5

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

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

5.3.1.1 Overview .................................................................................................................................................................................. 5- 5

5.3.1.2 Controlling the Scanner Motor ................................................................................................................................................. 5- 6

5.3.2 Enlargement/Reduction ...........................................................................................................................................5- 6

5.3.2.1 Changing the Magnification in Main Scanning Direction.......................................................................................................... 5- 6

5.3.2.2 Changing the Magnification in Sub Scanning Direction ........................................................................................................... 5- 6

5.3.3 Controlling the Scanning Lamp................................................................................................................................5- 7

5.3.3.1 Overview .................................................................................................................................................................................. 5- 7

5.3.3.2 Scanning Lamp ........................................................................................................................................................................ 5- 8

5.3.3.3 Controlling the Activation ......................................................................................................................................................... 5- 8

5.3.4 Detecting the Size of Originals.................................................................................................................................5- 8

5.3.4.1 Overview .................................................................................................................................................................................. 5- 8

5.3.4.2 Points of Measurement Used for Original Size Identification ................................................................................................... 5- 8

5.3.4.3 Overview of Operation ............................................................................................................................................................. 5- 9

5.3.5 Dirt Sensor Control ................................................................................................................................................5- 11

5.3.5.1 Dust Detection in Stream Reading Mode............................................................................................................................... 5- 11

5.3.5.2 White Plate Dust Detection Control ....................................................................................................................................... 5- 12

5.3.6 Image Processing ..................................................................................................................................................5- 13

5.3.6.1 Overview ................................................................................................................................................................................ 5- 13

5.3.6.2 CCD Drive .............................................................................................................................................................................. 5- 14

5.3.6.3 CCD Output Gain Correction, Offset Correction .................................................................................................................... 5- 14

5.3.6.4 CCD Output A/D Conversion ................................................................................................................................................. 5- 14

5.3.6.5 Outline of Shading Correction ................................................................................................................................................ 5- 14

5.3.6.6 Shading Adjustment ............................................................................................................................................................... 5- 15

5.3.6.7 Shading Correction ................................................................................................................................................................ 5- 15

5.4 Parts Replacement Procedure ................................................................................................................. 5- 16

5.4.1 CCD Unit................................................................................................................................................................5- 16

5.4.1.1 Before Removing the CCD Unit ............................................................................................................................................. 5- 16

5.4.1.2 Removing the CCD Unit......................................................................................................................................................... 5- 16

5.4.1.3 When Replacing the CCD Unit .............................................................................................................................................. 5- 16

5.4.2 Copyboard glass....................................................................................................................................................5- 17

5.4.2.1 Removing the Copyboard Glass ............................................................................................................................................ 5- 17

5.4.2.2 When Replacing the Copyboard Glass .................................................................................................................................. 5- 17

5.4.3 Scanning Lamp......................................................................................................................................................5- 17

5.4.3.1 Before Removing the Scanning Lamp ................................................................................................................................... 5- 17

5.4.3.2 Removing the Scanning Lamp ............................................................................................................................................... 5- 17

5.4.3.3 When Replacing the Scanning Lamp..................................................................................................................................... 5- 18

5.4.4 Reader Controller PCB ..........................................................................................................................................5- 18

5.4.4.1 Before Removing the Reader Controller PCB ....................................................................................................................... 5- 18

5.4.4.2 Removing the Reader Controller PCB ................................................................................................................................... 5- 18

Contents

5.4.4.3 After Replacing the Reader Controller PCB........................................................................................................................... 5- 19

5.4.5 Interface PCB ........................................................................................................................................................ 5- 19

5.4.5.1 Before Removing the Interface PCB ...................................................................................................................................... 5- 19

5.4.5.2 Removing the Interface PCB ................................................................................................................................................. 5- 19

5.4.6 Memory PCB .........................................................................................................................................................5- 20

5.4.6.1 Before Removing the Memory PCB ....................................................................................................................................... 5- 20

5.4.6.2 Removing the memory PCB .................................................................................................................................................. 5- 20

5.4.7 Inverter PCB ..........................................................................................................................................................5- 20

5.4.7.1 Before removing the inverter PCB ......................................................................................................................................... 5- 20

5.4.7.2 Removing the Inverter PCB ................................................................................................................................................... 5- 20

5.4.7.3 After Replacing the Inverter PCB ........................................................................................................................................... 5- 21

5.4.8 Scanner Motor ....................................................................................................................................................... 5- 21

5.4.8.1 Before Removing the Scanner Motor..................................................................................................................................... 5- 21

5.4.8.2 Removing the Scanner Motor ................................................................................................................................................ 5- 21

5.4.8.3 Mounting the Scanner Motor.................................................................................................................................................. 5- 22

5.4.9 ADF Open/Close Sensor .......................................................................................................................................5- 22

5.4.9.1 Before Removing the ADF Open/Close Sensor..................................................................................................................... 5- 22

5.4.9.2 Removing the ADF Open/Close Sensor ................................................................................................................................ 5- 22

5.4.10 Scanner HP Sensor .............................................................................................................................................5- 22

5.4.10.1 Before Removing the Scanner HP Sensor........................................................................................................................... 5- 22

5.4.10.2 Removing the Mirror Base HP Sensor ................................................................................................................................. 5- 22

5.4.11 Original Size Sensor ............................................................................................................................................5- 23

5.4.11.1 Before Removing the Original Size Sensor.......................................................................................................................... 5- 23

5.4.11.2 Removing the original size sensor ....................................................................................................................................... 5- 23

5.4.12 Cooling Fan .........................................................................................................................................................5- 24

5.4.12.1 Before Removing the Cooling Fan ....................................................................................................................................... 5- 24

5.4.12.2 Removing the Cooling Fan................................................................................................................................................... 5- 24

5.4.13 Scanner Drive Cable............................................................................................................................................5- 24

5.4.13.1 Outline .................................................................................................................................................................................. 5- 24

5.4.13.2 Before Removing the Scanner Drive Cable ......................................................................................................................... 5- 24

5.4.13.3 Removing the Scanner Drive Cable ..................................................................................................................................... 5- 24

5.4.13.4 Fitting the Scanner Drive Cable ........................................................................................................................................... 5- 27

5.4.13.5 Adjusting the Position of the No. 1/No. 2 Mirror Base .......................................................................................................... 5- 27

5.4.14 Waste Toner Box Holder .....................................................................................................................................5- 28

5.4.14.1 Before Removing the Collecting Toner Bottle Holder .......................................................................................................... 5- 28

5.4.14.2 Removing the Collecting Toner Bottle Holder ...................................................................................................................... 5- 28

Chapter 6 Laser Exposure

6.1 Construction ............................................................................................................................................... 6- 1

6.1.1 Overview..................................................................................................................................................................6- 1

6.1.2 Major Components ..................................................................................................................................................6- 1

6.2 Basic Sequence..........................................................................................................................................6- 1

6.2.1 Basic Sequence of Operation (laser exposure).......................................................................................................6- 1

6.3 Various Controls .........................................................................................................................................6- 2

6.3.1 Controlling the Laser Activation Timing ...................................................................................................................6- 2

6.3.1.1 Generating the Sync Signal ..................................................................................................................................................... 6- 2

6.3.1.2 Flow of the Sync Signal ........................................................................................................................................................... 6- 2

6.3.2 Controlling the Intensity of Laser Light ....................................................................................................................6- 2

6.3.2.1 Controlling the Laser Intensity ................................................................................................................................................. 6- 2

6.3.2.2 APC Control ............................................................................................................................................................................. 6- 3

6.3.3 Controlling the Laser Scanner Motor.......................................................................................................................6- 4

6.3.3.1 Controlling the Laser Scanner Motor ....................................................................................................................................... 6- 4

6.4 Parts Replacement Procedure ...................................................................................................................6- 5

6.4.1 Laser Scanner Unit..................................................................................................................................................6- 5

6.4.1.1 Removing the Laser Scanner Unit ........................................................................................................................................... 6- 5

6.4.1.2 When Replacing the Laser Scanner Unit ................................................................................................................................. 6- 5

Contents

Chapter 7 Image Formation

7.1 Construction ............................................................................................................................................... 7- 1

7.1.1 Overview..................................................................................................................................................................7- 1

7.1.2 Major Components...................................................................................................................................................7- 1

7.2 Image Formation Process .......................................................................................................................... 7- 1

7.2.1 Overview..................................................................................................................................................................7- 1

7.3 Basic Sequence ......................................................................................................................................... 7- 2

7.3.1 At Power-On ............................................................................................................................................................7- 2

7.3.2 At Time of Printing ...................................................................................................................................................7- 2

7.4 Potential Control......................................................................................................................................... 7- 3

7.4.1 Overview..................................................................................................................................................................7- 3

7.4.2 Copier/Printer Potential Control ...............................................................................................................................7- 3

7.4.3 Determining the Primary Current .............................................................................................................................7- 5

7.4.4 Determining the Laser Output..................................................................................................................................7- 6

7.4.5 Determining the Developing Bias.............................................................................................................................7- 6

7.4.6 APC Correction ........................................................................................................................................................7- 7

7.4.7 Adjusting the Density in Various Modes ..................................................................................................................7- 7

7.5 Charging Mechanism ................................................................................................................................. 7- 8

7.5.1 Controlling Pre-Exposure LED.................................................................................................................................7- 8

7.5.1.1 Pre-Exposure LED Control ...................................................................................................................................................... 7- 8

7.5.2 Primary Charging Mechanism..................................................................................................................................7- 8

7.5.2.1 Overview .................................................................................................................................................................................. 7- 8

7.5.2.2 Primary Charging Assembly Cleaning Mechanism .................................................................................................................. 7- 9

7.5.2.3 Others ...................................................................................................................................................................................... 7- 9

7.5.3 Dust-Collecting Roller Bias ....................................................................................................................................7- 10

7.5.3.1 Overview ................................................................................................................................................................................ 7- 10

7.5.4 Pre-Transfer Charging Mechanism........................................................................................................................7- 10

7.5.4.1 Overview ................................................................................................................................................................................ 7- 10

7.5.4.2 Controlling the Output to Suit the Environment (fuzzy control) .............................................................................................. 7- 11

7.5.4.3 Pre-Transfer Charging Assembly Cleaning Mechanism ........................................................................................................ 7- 11

7.5.4.4 Others .................................................................................................................................................................................... 7- 11

7.6 Drum Cleaner Unit.................................................................................................................................... 7- 12

7.6.1 Overview................................................................................................................................................................7- 12

7.6.2 Detecting the State (full) of the Collecting Toner Case..........................................................................................7- 12

7.6.3 Drum/Separation Claw Bias Control ......................................................................................................................7- 13

7.7 Developing Assembly............................................................................................................................... 7- 13

7.7.1 Controlling the Developing Assembly Drive...........................................................................................................7- 13

7.7.2 Controlling the Developing Bias.............................................................................................................................7- 13

7.7.3 Detecting the Toner Level and Controlling Toner Supply ......................................................................................7- 14

7.8 Transfer Mechanism................................................................................................................................. 7- 15

7.8.1 Transfer Charging Mechanism...............................................................................................................................7- 15

7.8.1.1 Overview ................................................................................................................................................................................ 7- 15

7.8.1.2 Controlling the Output to Suit the Environment (fuzzy control) .............................................................................................. 7- 15

7.8.1.3 Transfer Charging Assembly Cleaning Mechanism ............................................................................................................... 7- 16

7.8.1.4 Others .................................................................................................................................................................................... 7- 16

7.9 Separation Mechanism............................................................................................................................. 7- 17

7.9.1 Separation Charging Mechanism...........................................................................................................................7- 17

7.9.1.1 Overview ................................................................................................................................................................................ 7- 17

7.9.1.2 Correcting the Output to Suit the Environment and the Drum Surface Potential ................................................................... 7- 17

7.9.1.3 Others .................................................................................................................................................................................... 7- 18

7.10 Parts Replacement Procedure ............................................................................................................... 7- 19

7.10.1 Process Unit.........................................................................................................................................................7- 19

7.10.1.1 Before Removing Process Unit ............................................................................................................................................ 7- 19

7.10.1.2 Removing Process Unit ....................................................................................................................................................... 7- 19

7.10.1.3 Mounting Process Unit ........................................................................................................................................................ 7- 19

7.10.2 Pre-Exposure Lamp .............................................................................................................................................7- 20

Contents

7.10.2.1 Before Removing Pre-Exposure Lamp ............................................................................................................................... 7- 20

7.10.2.2 Removing Pre-Exposure Lamp ........................................................................................................................................... 7- 20

7.10.2.3 Cleaning Primary Toner Blocking Sheet ............................................................................................................................. 7- 20

7.10.3 Primary Charging Assembly ................................................................................................................................7- 20

7.10.3.1 Before Removing Primary Charging Assembly .................................................................................................................... 7- 20

7.10.3.2 Removing Primary Charging Assembly .............................................................................................................................. 7- 20

7.10.4 Pre-Transfer Charging Assembly ........................................................................................................................7- 21

7.10.4.1 Before Removing Pre-Transfer Charging Assembly ........................................................................................................... 7- 21

7.10.4.2 Removing Pre-Transfer Charging Assembly ....................................................................................................................... 7- 21

7.10.5 Photosensitive Drum............................................................................................................................................7- 21

7.10.5.1 Points to Note When Handling Photosensitive Drum .......................................................................................................... 7- 21

7.10.5.2 Before Removing Photosensitive Drum ............................................................................................................................... 7- 21

7.10.5.3 Removing Photosensitive Drum .......................................................................................................................................... 7- 21

7.10.5.4 Cleaning Photosensitive Drum ............................................................................................................................................ 7- 22

7.10.6 Drum Motor..........................................................................................................................................................7- 22

7.10.6.1 Before Removing Drum Motor ............................................................................................................................................ 7- 22

7.10.6.2 Removing Drum Motor ........................................................................................................................................................ 7- 22

7.10.7 Photosensitive Drum Heater................................................................................................................................7- 23

7.10.7.1 Points to Note When Handling Photosensitive Drum .......................................................................................................... 7- 23

7.10.7.2 Before Removing Photosensitive Drum Heater .................................................................................................................. 7- 23

7.10.7.3 Removing Drum Heater ...................................................................................................................................................... 7- 23

7.10.7.4 Points to Note When Mounting Drum Heater ...................................................................................................................... 7- 23

7.10.8 Cleaning Blade ....................................................................................................................................................7- 23

7.10.8.1 Configuration ........................................................................................................................................................................ 7- 23

7.10.8.2 Before Removing Cleaning Blade ....................................................................................................................................... 7- 23

7.10.8.3 Removing Cleaning Blade.................................................................................................................................................... 7- 23

7.10.8.4 Mounting Cleaning Blade .................................................................................................................................................... 7- 24

7.10.9 Side Seal .............................................................................................................................................................7- 24

7.10.9.1 Before Removing Side Seal ................................................................................................................................................ 7- 24

7.10.9.2 Removing Side Seal ............................................................................................................................................................ 7- 25

7.10.10 Cleaner Scraper.................................................................................................................................................7- 25

7.10.10.1 Before Cleaning Cleaner Scraper ..................................................................................................................................... 7- 25

7.10.10.2 Cleaning Cleaner Scraper .................................................................................................................................................. 7- 25

7.10.11 Hopper Assembly...............................................................................................................................................7- 25

7.10.11.1 Before Removing Hopper Assembly ................................................................................................................................. 7- 25

7.10.11.2 Removing Hopper Assembly ............................................................................................................................................. 7- 25

7.10.12 Hopper Supply Motor .........................................................................................................................................7- 26

7.10.12.1 Before Removing Toner Supply Motor .............................................................................................................................. 7- 26

7.10.12.2 Removing Toner Supply Motor .......................................................................................................................................... 7- 26

7.10.13 Hopper Strring Motor ......................................................................................................................................... 7- 26

7.10.13.1 Before Removing Hopper Stirring Motor ........................................................................................................................... 7- 26

7.10.13.2 Removing Hopper Stirring Motor ....................................................................................................................................... 7- 26

7.10.14 Developing Assembly ........................................................................................................................................7- 27

7.10.14.1 Removing Developing Assembly ....................................................................................................................................... 7- 27

7.10.14.2 Cleaning Developing Toner Blocking Sheet ...................................................................................................................... 7- 27

7.10.15 Developing Cylinder...........................................................................................................................................7- 28

7.10.15.1 Before Removing Developing Cylinder ............................................................................................................................. 7- 28

7.10.15.2 Removing Developing Cylinder ......................................................................................................................................... 7- 28

7.10.16 Developing Blade...............................................................................................................................................7- 28

7.10.16.1 Before Removing Developing Blade ................................................................................................................................. 7- 28

7.10.16.2 Removing Developing Blade ............................................................................................................................................. 7- 28

7.10.16.3 Mounting Developing Blade ............................................................................................................................................... 7- 28

7.10.17 Transfer/Separation Charging Assembly ...........................................................................................................7- 29

7.10.17.1 Removing Transfer/Separation Charging Assembly ......................................................................................................... 7- 29

7.10.17.2 Mounting Transfer/Separation Charging Assembly ........................................................................................................... 7- 29

7.10.18 Separation Claw/Separation Claw Drive Assembly ...........................................................................................7- 29

7.10.18.1 Before Removing Separation Claw Holder ........................................................................................................................ 7- 29

7.10.18.2 Removing Separation Claw Holder ................................................................................................................................... 7- 29

7.10.19 Potential Sensor Unit .........................................................................................................................................7- 30

7.10.19.1 Outline ................................................................................................................................................................................ 7- 30

Contents

7.10.19.2 Before Removing Potential Sensor Unit ............................................................................................................................ 7- 30

7.10.19.3 Removing Potential Sensor Unit ....................................................................................................................................... 7- 30

7.10.20 Charging Wire ....................................................................................................................................................7- 30

7.10.20.1 Outline ................................................................................................................................................................................ 7- 30

7.10.20.2 Routing Charging Wire ...................................................................................................................................................... 7- 30

7.10.20.3 Routing Grid for Primary Charging Assembly ................................................................................................................... 7- 31

7.10.20.4 Adjusting Height of Charging Wire .................................................................................................................................... 7- 31

Chapter 8 Pickup/Feeding System

8.1 Construction ............................................................................................................................................... 8- 1

8.1.1 Specifications and construction ...............................................................................................................................8- 1

8.1.2 Arrangement of Rollers and Sensors.......................................................................................................................8- 1

8.1.3 Outline of the Pickup Control System ......................................................................................................................8- 2

8.1.4 Outline of the Pickup Assembly Motor Control System ...........................................................................................8- 4

8.2 Basic Sequence ......................................................................................................................................... 8- 5

8.2.1 Pickup from the Right Deck .....................................................................................................................................8- 5

8.2.2 Pickup from the Cassette 3......................................................................................................................................8- 5

8.2.3 Pickup Retry Operation............................................................................................................................................8- 6

8.3 Detecting Jams........................................................................................................................................... 8- 7

8.3.1 Jam Detection Outline..............................................................................................................................................8- 7

8.3.1.1 Outline...................................................................................................................................................................................... 8- 7

8.3.1.2 Jam History .............................................................................................................................................................................. 8- 8

8.3.2 Delay Jams ..............................................................................................................................................................8- 8

8.3.2.1 Cassette Pickup Assembly (right deck, left deck, cassette 3/4)............................................................................................... 8- 8

8.3.2.2 Other Delay Jam ...................................................................................................................................................................... 8- 8

8.3.3 Stationary Jams .......................................................................................................................................................8- 9

8.3.3.1 Common Delay Jams............................................................................................................................................................... 8- 9

8.3.3.2 Power-On Stationary Jam ........................................................................................................................................................ 8- 9

8.4 Cassette Pick-Up Unit .............................................................................................................................. 8- 10

8.4.1 Lifter Operation (cassette 3/4) ...............................................................................................................................8- 10

8.4.2 Detecting the Presence/Absence of Paper............................................................................................................8- 10

8.4.3 Outline of the Paper Level Detection Mechanism..................................................................................................8- 11

8.4.4 Paper Level Detection (cassette 3/4).....................................................................................................................8- 11

8.4.5 Identifying the Size of Paper (cassette 3/4) ...........................................................................................................8- 11

8.4.6 Markings on the Width Guide Rail .........................................................................................................................8- 12

8.4.7 Paper Size .............................................................................................................................................................8- 12

8.5 Manual Feed Pickup Unit ......................................................................................................................... 8- 14

8.5.1 Pickup Operation ...................................................................................................................................................8- 14

8.5.2 Detecting the Size of Paper in the Manual Feed Tray ...........................................................................................8- 14

8.6 Deck ......................................................................................................................................................... 8- 15

8.6.1 Lifter Operation (right/left deck) .............................................................................................................................8- 15

8.6.2 Lifter Limiter (right/left deck) Control Circuit...........................................................................................................8- 16

8.6.3 Detecting the Presence/Absence of Paper............................................................................................................8- 16

8.6.4 Outline of Paper Level Detection ...........................................................................................................................8- 17

8.6.5 Paper Level Detection Operation (right/left deck) ..................................................................................................8- 17

8.6.6 Identifying the Size of Paper (right/left deck) .........................................................................................................8- 17

8.7 Registration Unit....................................................................................................................................... 8- 18

8.7.1 Outline....................................................................................................................................................................8- 18

8.7.2 Control System ......................................................................................................................................................8- 18

8.8 Duplex Feeding Unit ................................................................................................................................. 8- 18

8.8.1 Moving the Paper to the Reversing Assembly After Printing on the 1st Side ........................................................8- 18

8.8.2 Moving the Paper to the Duplexing Feed Assembly From the Reversing Assembly.............................................8- 19

8.8.3 Outline....................................................................................................................................................................8- 19

8.8.4 Sequence of Printing Operation.............................................................................................................................8- 20

8.8.5 Outline of Through-Path Operation........................................................................................................................8- 20

8.8.6 Through-Path Operation ........................................................................................................................................8- 20

Contents

8.8.7 Outline of Horizontal Registration Position ............................................................................................................8- 24

8.8.8 Horizontal Registration Position Detection Operation ...........................................................................................8- 24

8.9 Delivery..................................................................................................................................................... 8- 25

8.9.1 Reversal Delivery Operation..................................................................................................................................8- 25

8.10 Parts Replacement Procedure................................................................................................................ 8- 26

8.10.1 Pickup Roller........................................................................................................................................................8- 26

8.10.1.1 Before Removing the Pickup Roller ..................................................................................................................................... 8- 26

8.10.1.2 Removing the Pickup Roller ................................................................................................................................................. 8- 26

8.10.1.3 Points to Note When Mounting the Pickup Roller ................................................................................................................ 8- 26

8.10.2 Cassette Pickup Assembly ..................................................................................................................................8- 26

8.10.2.1 Removing the Cassette 3/4 Pickup Assembly ..................................................................................................................... 8- 26

8.10.3 Cassette Pickup Motor.........................................................................................................................................8- 26

8.10.3.1 Before Removing the Cassette 3/4 Pickup Motor ................................................................................................................ 8- 26

8.10.3.2 Removing the Cassette 3/4 Pickup Motor ............................................................................................................................ 8- 26

8.10.4 Cassette Lifter Motor ...........................................................................................................................................8- 27

8.10.4.1 Removing the Cassette 3 Lifter Motor M20.......................................................................................................................... 8- 27

8.10.4.2 Removing the Cassette 4 Lifter Motor M21.......................................................................................................................... 8- 27

8.10.4.3 Adjusting the Position of the Lifter Motor M20/M21 of the Cassette 3/4 .............................................................................. 8- 28

8.10.5 Left Deck Lifter Motor ..........................................................................................................................................8- 28

8.10.5.1 Before Removing the Left Deck Lifter Motor ........................................................................................................................ 8- 28

8.10.5.2 Removing the Left Deck Lifter Motor.................................................................................................................................... 8- 28

8.10.6 Right Deck Lifter Motor ........................................................................................................................................8- 29

8.10.6.1 Before Removing the Right Deck Lifter Motor...................................................................................................................... 8- 29

8.10.6.2 Removing the Right Deck Lifter Motor ................................................................................................................................. 8- 29

8.10.7 Right Deck Pickup Assembly...............................................................................................................................8- 30

8.10.7.1 Removing the Right Deck Pickup Assembly ........................................................................................................................ 8- 30

8.10.8 Left Deck Pickup Assembly .................................................................................................................................8- 30

8.10.8.1 Removing the Left Deck Pickup Assembly .......................................................................................................................... 8- 30

8.10.9 Left Deck Pickup Motor........................................................................................................................................8- 31

8.10.9.1 Before Removing the Left Deck Pickup Motor ..................................................................................................................... 8- 31

8.10.9.2 Removing the Left Deck Pickup Motor ................................................................................................................................. 8- 31

8.10.10 Right Deck Pickup Motor ...................................................................................................................................8- 31

8.10.10.1 Before Removing the Right Deck Pickup Motor ................................................................................................................. 8- 31

8.10.10.2 Removing the Right Deck Pickup Motor............................................................................................................................. 8- 31

8.10.11 Left Deck Pickup Sensor....................................................................................................................................8- 31

8.10.11.1 Before Removing the Left Deck Feeding Sensor ............................................................................................................... 8- 31

8.10.11.2 Removing the Left Deck Feeding Sensor........................................................................................................................... 8- 31

8.10.12 Left Deck Pickup Solenoid.................................................................................................................................8- 31

8.10.12.1 Before Removing the Left Deck Pickup Solenoid............................................................................................................... 8- 31

8.10.12.2 Removing the Left Deck Pickup Solenoid .......................................................................................................................... 8- 32

8.10.12.3 Adjusting the Position of the Left Deck Pickup Solenoid .................................................................................................... 8- 32

8.10.13 Manual Feed Pull-Out Roller Unit ...................................................................................................................... 8- 32

8.10.13.1 Removing the Manual Feeding Pickup Roller Unit ............................................................................................................. 8- 32

8.10.14 Manual Feed Pull-Out Roller..............................................................................................................................8- 32

8.10.14.1 Before Removing the Manual Feeding Pickup Roller......................................................................................................... 8- 32

8.10.14.2 Removing the Manual Feeding Pickup Roller .................................................................................................................... 8- 32

8.10.15 Manual Feed Roller............................................................................................................................................8- 33

8.10.15.1 Before Removing the Manual Feeding Roller .................................................................................................................... 8- 33

8.10.15.2 Removing the Manual Feeding Roller ................................................................................................................................ 8- 33

8.10.16 Manual Separation Roller ..................................................................................................................................8- 33

8.10.16.1 Before Removing the Manual Separation Roller ................................................................................................................ 8- 33

8.10.16.2 Removing the Manual Separation Roller............................................................................................................................ 8- 33

8.10.16.3 Adjusting the Pressure of the Manual Separation Roller.................................................................................................... 8- 33

8.10.17 Manual Feed Tray paper sensor........................................................................................................................8- 34

8.10.17.1 Removing the Manual Feeding Tray Sensor ...................................................................................................................... 8- 34

8.10.18 Registration Roller .............................................................................................................................................8- 34

8.10.18.1 Before Removing the Registration Roller ........................................................................................................................... 8- 34

8.10.18.2 Removing the Registration Roller....................................................................................................................................... 8- 34

8.10.19 Pre-Registration Roller....................................................................................................................................... 8- 35

Contents

8.10.19.1 Before Removing the Registration Lower Roller ................................................................................................................ 8- 35

8.10.19.2 Removing the Registration Lower Roller ............................................................................................................................ 8- 35

8.10.20 Pre-Registration Motor .......................................................................................................................................8- 36

8.10.20.1 Before Removing the Registration Front Motor .................................................................................................................. 8- 36

8.10.20.2 Removing the Registration Front Motor ............................................................................................................................. 8- 36

8.10.21 Registration Motor..............................................................................................................................................8- 36

8.10.21.1 Before Removing the Horizontal Registration Motor .......................................................................................................... 8- 36

8.10.21.2 Removing the Horizontal Registration Motor...................................................................................................................... 8- 36

8.10.22 Registration Sensor............................................................................................................................................8- 37

8.10.22.1 Before Removing the Horizontal Registration Sensor........................................................................................................ 8- 37

8.10.22.2 Removing the Horizontal Registration Sensor ................................................................................................................... 8- 37

8.10.23 Registration Clutch.............................................................................................................................................8- 38

8.10.23.1 Before Removing the Registration Clutch .......................................................................................................................... 8- 38

8.10.23.2 Removing the Registration Clutch ...................................................................................................................................... 8- 38

8.10.24 Registration Brake Clutch...................................................................................................................................8- 38

8.10.24.1 Before Removing the Registration Brake ........................................................................................................................... 8- 38

8.10.24.2 Removing the Registration Brake....................................................................................................................................... 8- 38

8.10.25 Feeding Roller ....................................................................................................................................................8- 38

8.10.25.1 Before Removing the Feeding Roller ................................................................................................................................. 8- 38

8.10.25.2 Removing the Feeding Roller ............................................................................................................................................. 8- 38

8.10.25.3 The Points to Mount the Feeding Roller ............................................................................................................................. 8- 39

8.10.26 Vertical Path Roller.............................................................................................................................................8- 39

8.10.26.1 Before Removing the Vertical Path Roller .......................................................................................................................... 8- 39

8.10.26.2 Removing the Vertical Path Roller ..................................................................................................................................... 8- 39

8.10.26.3 Removing the Vertical Path Roller 2/3 ............................................................................................................................... 8- 39

8.10.27 Vertical Path Motor.............................................................................................................................................8- 39

8.10.27.1 Before Removing the Vertical Path Upper Motor ............................................................................................................... 8- 39

8.10.27.2 Removing the Vertical Path Upper Motor ........................................................................................................................... 8- 40

8.10.28 Vertical Path Duplex Motor.................................................................................................................................8- 40

8.10.28.1 Before Removing the Vertical Path Duplex Motor .............................................................................................................. 8- 40

8.10.28.2 Removing the Vertical Path Duplex Motor ......................................................................................................................... 8- 40

8.10.29 Vertical Path Lower Motor..................................................................................................................................8- 40

8.10.29.1 Before Removing the Vertical Path Lower Motor ............................................................................................................... 8- 40

8.10.29.2 Removing the Vertical Path Lower Motor ........................................................................................................................... 8- 40

8.10.30 Reversing Motor.................................................................................................................................................8- 40

8.10.30.1 Before Removing the Reversing Motor .............................................................................................................................. 8- 40

8.10.30.2 Removing the Reversing Motor .......................................................................................................................................... 8- 41

8.10.30.3 Mounting the Reversing Motor ........................................................................................................................................... 8- 41

8.10.31 Fixing Feeding Unit Releasing Lever Sensor .....................................................................................................8- 41

8.10.31.1 Before Removing the Fixing Feeding Unit Release Lever Sensor ..................................................................................... 8- 41

8.10.31.2 Removing the Fixing Feeding Unit Release Lever Sensor................................................................................................. 8- 41

8.10.32 Reversing Sensor...............................................................................................................................................8- 41

8.10.32.1 Before Removing the Reversing Sensor 1 ......................................................................................................................... 8- 41

8.10.32.2 Removing the Reversing Sensor 1..................................................................................................................................... 8- 41

8.10.32.3 Before Removing the Reversing Sensor 2 ......................................................................................................................... 8- 42

8.10.32.4 Removing the Reversing Sensor 2..................................................................................................................................... 8- 42

8.10.33 Reversing Unit....................................................................................................................................................8- 42

8.10.33.1 Before Removing the Reversing Flapper Solenoid ............................................................................................................ 8- 42

8.10.33.2 Removing the Reversing Flapper Solenoid ........................................................................................................................ 8- 42

8.10.33.3 Mounting the Reversing Flapper Solenoid ......................................................................................................................... 8- 42

8.10.34 Feeding Belt .......................................................................................................................................................8- 43

8.10.34.1 Before Removing the feeding belt ..................................................................................................................................... 8- 43

8.10.34.2 Removing the feeding belt ................................................................................................................................................. 8- 43

8.10.35 Duplexing Unit....................................................................................................................................................8- 44

8.10.35.1 Before Removing the Duplex Feeding Unit ........................................................................................................................ 8- 44

8.10.35.2 Removing the Duplex Feeding Unit.................................................................................................................................... 8- 44

8.10.36 Duplex Feed Motor.............................................................................................................................................8- 44

8.10.36.1 Before Removing the Duplex Feeding Left Motor .............................................................................................................. 8- 44

8.10.36.2 Removing the Duplex Feeding Left Motor .......................................................................................................................... 8- 44

8.10.36.3 Before Removing the Duplex Feeding Right Motor ............................................................................................................ 8- 44

Contents

8.10.36.4 Removing the Duplex Feeding Right Motor ....................................................................................................................... 8- 44

8.10.37 Duplex Feed Sensor ..........................................................................................................................................8- 44

8.10.37.1 Before Removing the Duplex Pre-Registration Sensor ...................................................................................................... 8- 44

8.10.37.2 Removing the Duplex Pre-Registration Sensor.................................................................................................................. 8- 44

8.10.38 Separation Roller ...............................................................................................................................................8- 45

8.10.38.1 Before Removing the Separation Roller ............................................................................................................................. 8- 45

8.10.38.2 Removing the Separation Roller ........................................................................................................................................ 8- 45

8.10.38.3 Points to Note When Mounting the Separation Roller ........................................................................................................ 8- 45

8.10.38.4 Adjusting the Pressure of the Deck/Cassette Separation Roller ........................................................................................ 8- 46

Chapter 9 Fixing System

9.1 Construction ............................................................................................................................................... 9- 1

9.1.1 Specifications, Control Mechanisms, and Functions ...............................................................................................9- 1

9.1.2 Major Components ..................................................................................................................................................9- 1

9.1.3 IH Fixing Method (outline) .......................................................................................................................................9- 2

9.1.4 Limiting th Rise in Temperature at the Roller Edges by Use of a Flux blocking Plate (shutter) ..............................9- 3

9.2 Basic Sequence..........................................................................................................................................9- 3

9.2.1 Outline .....................................................................................................................................................................9- 3

9.2.2 30-Sec Start-Up Mode.............................................................................................................................................9- 4

9.2.3 Low-Temperature Environment Start-Up Mode.......................................................................................................9- 4

9.2.4 High-Humidity Environment Start-Up Mode ............................................................................................................9- 5

9.2.5 Recovery Mode .......................................................................................................................................................9- 5

9.2.6 Standby Mode .........................................................................................................................................................9- 6

9.2.7 Power Save Mode ...................................................................................................................................................9- 6

9.2.8 Sleep Mode ............................................................................................................................................................9- 7

9.2.9 Copying/Printing Mode ............................................................................................................................................9- 7

9.2.10 Down Sequence ....................................................................................................................................................9- 7

9.2.11 Enhanced Fixing Mode ..........................................................................................................................................9- 7

9.2.12 Heavy Paper Mode ................................................................................................................................................9- 8

9.2.13 Transparency Mode...............................................................................................................................................9- 8

9.2.14 Bond Paper Mode..................................................................................................................................................9- 9

9.3 Various Control Mechanisms......................................................................................................................9- 9

9.3.1 Fixing Drive System.................................................................................................................................................9- 9

9.3.1.1 Controlling the Drive of the Fixing Roller ................................................................................................................................. 9- 9

9.3.1.2 Controlling the Drive of the Fixing Inlet Guide ......................................................................................................................... 9- 9

9.3.1.3 Controlling the Reciprocating Movement of the Thermistor ................................................................................................... 9- 10

9.3.1.4 Controlling the Reciprocating Mechanism of the Upper Separation Claw ............................................................................. 9- 11

9.3.1.5 Controlling the Drive of the Shutter ........................................................................................................................................ 9- 11

9.3.1.6 Controlling the Shutter Position ............................................................................................................................................. 9- 12

9.3.2 Cleaning ................................................................................................................................................................9- 14

9.3.2.1 Controlling the Drive of the Cleaning Web ............................................................................................................................. 9- 14

9.3.2.2 Controlling the Mechanism Used to Detect the Remaining Length of the Cleaning Web...................................................... 9- 14

9.3.3 Detecting the Passage of Paper ............................................................................................................................9- 15

9.3.3.1 Preventing Wrapping of Paper ............................................................................................................................................... 9- 15

9.4 Protective Functions ................................................................................................................................. 9- 16

9.4.1 Detecting an Error Using the Thermistor...............................................................................................................9- 16

9.4.2 Detecting an Error Using the Thermal Switch .......................................................................................................9- 16

9.4.3 Errors.....................................................................................................................................................................9- 16

9.5 Parts Replacement Procedure .................................................................................................................9- 18

9.5.1 Fixing/Feeding Assembly ......................................................................................................................................9- 18

9.5.1.1 Before Removing the Fixing/Feeding unit .............................................................................................................................. 9- 18

9.5.1.2 Removing the Fixing/Feeding unit ......................................................................................................................................... 9- 18

9.5.2 Fixing Unit..............................................................................................................................................................9- 19

9.5.2.1 Before Removing the Fixing Upper Unit ................................................................................................................................ 9- 19

9.5.2.2 Removing the Fixing Upper Unit ............................................................................................................................................ 9- 19

9.5.3 Pressure Roller......................................................................................................................................................9- 19

9.5.3.1 Before Removing the Pressure Roller ................................................................................................................................... 9- 19

Contents

9.5.3.2 Removing the Pressure Roller ............................................................................................................................................... 9- 19

9.5.4 Upper Fixing Roller ................................................................................................................................................9- 20

9.5.4.1 Before Removing the Fixing Roller ........................................................................................................................................ 9- 20

9.5.4.2 Removing the Fixing Roller .................................................................................................................................................... 9- 20

9.5.4.3 Points to Note When Mounting the Fixing Roller ................................................................................................................... 9- 22

9.5.4.4 Applying Grease After Replacing the Fixing Roller ................................................................................................................ 9- 23

9.5.4.5 Adjusting the Nip Width.......................................................................................................................................................... 9- 24

9.5.5 External Delivery Roller .........................................................................................................................................9- 24

9.5.5.1 Before Removing the External Delivery Roller....................................................................................................................... 9- 24

9.5.5.2 Removing the External Delivery Roller .................................................................................................................................. 9- 24

9.5.6 Internal Delivery Roller...........................................................................................................................................9- 25

9.5.6.1 Before Removing the Internal Delivery Roller ........................................................................................................................ 9- 25

9.5.6.2 Removing the Internal Delivery Roller ................................................................................................................................... 9- 25

9.5.6.3 Points to Note When Mounting the Internal Delivery Roller ................................................................................................... 9- 26

9.5.7 Main Thermistor.....................................................................................................................................................9- 26

9.5.7.1 Before Removing the Main Thermistor/Shutter Thermistor ................................................................................................... 9- 26

9.5.7.2 Removing the Main Thermistor/Shutter Thermistor ............................................................................................................... 9- 26

9.5.7.3 Points to Note When Mounting the Main Thermistor/Shutter Thermistor .............................................................................. 9- 27

9.5.8 Sub Thermistor ......................................................................................................................................................9- 27

9.5.8.1 Before Removing the Sub Thermistor.................................................................................................................................... 9- 27

9.5.8.2 Removing the Sub Thermistor ............................................................................................................................................... 9- 28

9.5.8.3 Points to Note When Mounting the Sub Thermistor............................................................................................................... 9- 28

9.5.9 Thermal Switch ......................................................................................................................................................9- 28

9.5.9.1 Before Removing the Thermal Switch ................................................................................................................................... 9- 28

9.5.9.2 Removing the Thermal Switch ............................................................................................................................................... 9- 29

9.5.10 Fixing Heater........................................................................................................................................................9- 29

9.5.10.1 Before Removing the Fixing Heater Unit.............................................................................................................................. 9- 29

9.5.10.2 Removing the Fixing Heater Unit ......................................................................................................................................... 9- 29

9.5.11 Fixing Cleaning Belt .............................................................................................................................................9- 31

9.5.11.1 Before Removing the Fixing Web ........................................................................................................................................ 9- 31

9.5.11.2 Removing the Fixing Web .................................................................................................................................................... 9- 31

9.5.11.3 Cleaning the fixing oil dish and the fixing cleaning belt guide .............................................................................................. 9- 31

9.5.11.4 Mounting the Fixing Web ..................................................................................................................................................... 9- 31

9.5.11.5 After Replacing the Fixing Web............................................................................................................................................ 9- 32

9.5.12 Fixing Jam Sensor ...............................................................................................................................................9- 32

9.5.12.1 Before Removing the Delivery Jam Sensor ......................................................................................................................... 9- 32

9.5.12.2 Removing the Delivery Jam Sensor..................................................................................................................................... 9- 32

9.5.13 Claw Jam Sensor.................................................................................................................................................9- 32

9.5.13.1 Before Removing the Claw Jam Sensor .............................................................................................................................. 9- 32

9.5.13.2 Removing the Claw Jam Sensor.......................................................................................................................................... 9- 32

9.5.14 External Delivery Sensor......................................................................................................................................9- 33

9.5.14.1 Before Removing the External Delivery Sensor................................................................................................................... 9- 33

9.5.14.2 Removing the External Delivery Sensor .............................................................................................................................. 9- 33

9.5.15 Internal Delivery Sensor.......................................................................................................................................9- 33

9.5.15.1 Before Removing the Internal Delivery Sensor .................................................................................................................... 9- 33

9.5.15.2 Removing the Internal Delivery Sensor................................................................................................................................ 9- 33

9.5.16 Fixing Inlet Sensor ...............................................................................................................................................9- 33

9.5.16.1 Before Removing the Fixing Inlet Sensor............................................................................................................................. 9- 33

9.5.16.2 Removing the Fixing Inlet Sensor ........................................................................................................................................ 9- 33

9.5.16.3 Adjusting the Fixing Inlet Guide ........................................................................................................................................... 9- 34

9.5.17 Fixing web sensor ................................................................................................................................................9- 34

9.5.17.1 Before Removing the Fixing Web Sensor ............................................................................................................................ 9- 34

9.5.17.2 Removing the Fixing Web Sensor........................................................................................................................................ 9- 34

9.5.18 Fixing shutter sensor............................................................................................................................................9- 34

9.5.18.1 Before Removing the Shutter Sensor .................................................................................................................................. 9- 34

9.5.18.2 Removing the Shutter Sensor.............................................................................................................................................. 9- 34

9.5.19 Fixing shutter motor .............................................................................................................................................9- 34

9.5.19.1 Before Removing the Shutter Motor..................................................................................................................................... 9- 34

9.5.19.2 Removing the Shutter Motor ................................................................................................................................................ 9- 34

9.5.20 Fixing Inlet Guide Solenoid ..................................................................................................................................9- 35

Contents

9.5.20.1 Before Removing the Fixing Inlet Guide Solenoid (SL1)...................................................................................................... 9- 35

9.5.20.2 Removing the Fixing Inlet Guide Solenoid (SL1) ................................................................................................................. 9- 35

9.5.20.3 Adjusting the Fixing Inlet Guide Solenoid (SL1)................................................................................................................... 9- 35

9.5.21 Delivery Flapper Solenoid....................................................................................................................................9- 35

9.5.21.1 Before Removing the Delivery Flapper Solenoid (SL5) ....................................................................................................... 9- 35

9.5.21.2 Removing the Delivery Flapper Solenoid (SL5) ................................................................................................................... 9- 35

9.5.21.3 Points to Note When Mounting the Delivery Flapper Solenoid (SL5) .................................................................................. 9- 36

9.5.22 Fixing Cleaning Web Solenoid.............................................................................................................................9- 36

9.5.22.1 Before Removing the Fixing Web Solenoid (SL9)................................................................................................................ 9- 36

9.5.22.2 Removing the Fixing Web Solenoid (SL9) ........................................................................................................................... 9- 36

9.5.22.3 Adjusting the Fixing Web Solenoid (SL9)............................................................................................................................. 9- 36

9.5.23 Upper Separation Claw........................................................................................................................................9- 36

9.5.23.1 Removing the Upper Separation Claw ................................................................................................................................. 9- 36

9.5.23.2 Points to Note When Mounting the Upper Separation Claw ................................................................................................ 9- 37

9.5.24 Lower Separation Claw........................................................................................................................................9- 37

9.5.24.1 Before Removing the Lower Separation Claw (Unit) ........................................................................................................... 9- 37

9.5.24.2 Removing the Lower Separation Claw (Unit) ....................................................................................................................... 9- 38

Chapter 10 External and Controls

10.1 Control Panel ..........................................................................................................................................10- 1

10.1.1 Overview..............................................................................................................................................................10- 1

10.1.2 LCD Indication Processing ..................................................................................................................................10- 1

10.1.3 Adjusting the LCD Contrast .................................................................................................................................10- 1

10.1.4 Functions of the Control Panel CPU....................................................................................................................10- 1

10.2 Counters ................................................................................................................................................. 10- 1

10.2.1 Soft Counters....................................................................................................................................................... 10- 1

10.3 Fans........................................................................................................................................................10- 2

10.3.1 Arrangement, Functions, and Error Codes .......................................................................................................... 10- 2

10.3.2 Controlling the Speed of the Fans .......................................................................................................................10- 3

10.3.3 Sequence of Operation........................................................................................................................................10- 3

10.4 Power Supply System.............................................................................................................................10- 4

10.4.1 Power Supply.......................................................................................................................................................10- 4

10.4.1.1 Overview .............................................................................................................................................................................. 10- 4

10.4.1.2 Distribution of Power and the Switches................................................................................................................................ 10- 4

10.4.2 Rated Output of the DC Power Supply PCB........................................................................................................10- 6

10.4.2.1 Rated Output of the DC Power Supply PCB ........................................................................................................................ 10- 6

10.4.2.2 Rated Output of the Accessories Power Supply PCB .......................................................................................................... 10- 6

10.4.3 Protection Function..............................................................................................................................................10- 7

10.4.3.1 Protective Functions............................................................................................................................................................. 10- 7

10.4.4 Backup Battery ....................................................................................................................................................10- 7

10.4.4.1 Backup Battery ..................................................................................................................................................................... 10- 7

10.4.5 Energy-Saving Function ......................................................................................................................................10- 7

10.4.5.1 Overview .............................................................................................................................................................................. 10- 7

10.4.5.2 SNMP setup ......................................................................................................................................................................... 10- 8

10.5 Parts Replacement Procedure.............................................................................................................. 10- 10

10.5.1 External Covers .................................................................................................................................................10- 10

10.5.1.1 Right Cover (Lower Rear) .................................................................................................................................................. 10- 10

10.5.1.2 Right Cover (Upper Rear) .................................................................................................................................................. 10- 10

10.5.1.3 Right Cover (Upper) ........................................................................................................................................................... 10- 10

10.5.1.4 Left Cover (Upper) ............................................................................................................................................................. 10- 10

10.5.1.5 Front Cover ........................................................................................................................................................................ 10- 11

10.5.1.6 Rear Cover (Upper)............................................................................................................................................................ 10- 11

10.5.1.7 Rear Cover (Lower)............................................................................................................................................................ 10- 11

10.5.1.8 Left Cover (Lower) ............................................................................................................................................................. 10- 11

10.5.1.9 Left Cover (Middle)............................................................................................................................................................. 10- 12

10.5.1.10 Toner Supply Cover ......................................................................................................................................................... 10- 12

10.5.1.11 Fixing/Feeding Unit Cover ................................................................................................................................................ 10- 12

10.5.1.12 Fixing Cover (Upper) ........................................................................................................................................................ 10- 13

Contents

10.5.1.13 Fixing Cover (Lower) ........................................................................................................................................................ 10- 14

10.5.1.14 Main Controller Box Cover ............................................................................................................................................... 10- 15

10.5.1.15 Reader Left Cover ............................................................................................................................................................ 10- 15

10.5.1.16 Reader Right Cover.......................................................................................................................................................... 10- 15

10.5.1.17 Reader Front Cover.......................................................................................................................................................... 10- 15

10.5.1.18 Reader Rear Cover .......................................................................................................................................................... 10- 16

10.5.2 Left Deck Drive Assembly..................................................................................................................................10- 17

10.5.2.1 Before Removing the Left Deck Drive Assembly ............................................................................................................... 10- 17

10.5.2.2 Removing the Left Deck Drive Assembly ........................................................................................................................... 10- 17

10.5.3 Manual Feed Pickup Drive Assembly ................................................................................................................10- 17

10.5.3.1 Before Removing the Manual Pickup Drive Assembly ....................................................................................................... 10- 17

10.5.3.2 Removing the Manual Pickup Drive Assembly .................................................................................................................. 10- 17

10.5.4 Vertical Path Drive Assembly.............................................................................................................................10- 17

10.5.4.1 Before Removing the Vertical Path Drive Assembly .......................................................................................................... 10- 17

10.5.4.2 Removing the Vertical Path Drive Assembly...................................................................................................................... 10- 17

10.5.5 Waste Toner Drive Assembly.............................................................................................................................10- 18

10.5.5.1 Before Removing the Collecting Toner Drive Assembly .................................................................................................... 10- 18

10.5.5.2 Removing the Collecting Toner Drive Assembly ................................................................................................................ 10- 18

10.5.6 Main Drive Assembly .........................................................................................................................................10- 19

10.5.6.1 Fitting the Drive Belt........................................................................................................................................................... 10- 19

10.5.7 Cassette Pickup Drive Assembly .......................................................................................................................10- 19

10.5.7.1 Before Removing the Cassette Pickup Drive Assembly .................................................................................................... 10- 19

10.5.7.2 Removing the Cassette Pickup Drive Assembly ................................................................................................................ 10- 19

10.5.8 Fixing Drive Assembly........................................................................................................................................10- 20

10.5.8.1 Before Removing the Fixing Drive Assembly ..................................................................................................................... 10- 20

10.5.8.2 Removing the Fixing Drive Assembly ................................................................................................................................ 10- 20

10.5.9 Power Supply Unit..............................................................................................................................................10- 20

10.5.9.1 Removing the Charger unit ................................................................................................................................................ 10- 20

10.5.9.2 Points to Note At Occurrence of Charger unit Malfunction ................................................................................................ 10- 20

10.5.10 Duplex Unit PCB ..............................................................................................................................................10- 21

10.5.10.1 Before Removing the Duplex unit PCB ............................................................................................................................ 10- 21

10.5.10.2 Removing the Duplex Unit PCB ....................................................................................................................................... 10- 21

10.5.11 Control Panel....................................................................................................................................................10- 21

10.5.11.1 Before Removing Control Panel ...................................................................................................................................... 10- 21

10.5.11.2 Removing Control Panel ................................................................................................................................................. 10- 21

10.5.12 DC Controller PCB ...........................................................................................................................................10- 22

10.5.12.1 Before Removing DC Controller PCB ............................................................................................................................. 10- 22

10.5.12.2 Removing DC Controller PCB ......................................................................................................................................... 10- 22

10.5.12.3 When Replacing DC Controller PCB ............................................................................................................................... 10- 22

10.5.13 Printer Power Supply PCB ...............................................................................................................................10- 22

10.5.13.1 Before Removing Printer Power Supply PCB ................................................................................................................. 10- 22

10.5.13.2 Removing Printer Power Supply PCB ............................................................................................................................. 10- 22

10.5.14 Option Power Supply PCB ...............................................................................................................................10- 23

10.5.14.1 Before Removing Accessories Power Supply PCB ......................................................................................................... 10- 23

10.5.14.2 Removing Accessories Power Supply PCB .................................................................................................................... 10- 23

10.5.15 Fixing Heater Power Supply PCB ....................................................................................................................10- 23

10.5.15.1 Before Removing Fixing Heater Power Supply PCB ....................................................................................................... 10- 23

10.5.15.2 Removing Fixing Heater Power Supply PCB .................................................................................................................. 10- 23

10.5.16 Anti-Rush Current PCB ....................................................................................................................................10- 24

10.5.16.1 Before Removing Anti-Rush Current PCB ...................................................................................................................... 10- 24

10.5.16.2 Removing Anti-Rush Current PCB .................................................................................................................................. 10- 24

10.5.17 High-Voltage Transformer (AC)........................................................................................................................10- 25

10.5.17.1 Before Removing High Voltage Transformer .................................................................................................................. 10- 25

10.5.17.2 Removing High Voltage Transformer .............................................................................................................................. 10- 25

10.5.17.3 Removing High Voltage Transformer ............................................................................................................................... 10- 25

10.5.18 HVT PCB..........................................................................................................................................................10- 26

10.5.18.1 Before Removing HVT PCB ............................................................................................................................................ 10- 26

10.5.18.2 Removing HVT PCB ........................................................................................................................................................ 10- 26

10.5.18.3 When Replacing HVT PCB ............................................................................................................................................. 10- 26

10.5.19 Separation Clew AC bias PCB .........................................................................................................................10- 26

Contents

10.5.19.1 Before Removing Separation Claw AC PCB ................................................................................................................... 10- 26

10.5.19.2 Removing Separation Claw AC PCB .............................................................................................................................. 10- 26

10.5.20 Motor Driver PCB.............................................................................................................................................10- 26

10.5.20.1 Before Removing Motor Driver PCB ............................................................................................................................... 10- 26

10.5.20.2 Removing Motor Driver PCB ........................................................................................................................................... 10- 26

10.5.21 Primary Fan Duct ............................................................................................................................................10- 26

10.5.21.1 Before Removing Primary fan Duct ................................................................................................................................. 10- 26

10.5.21.2 Removing Primary fan Duct ............................................................................................................................................ 10- 27

10.5.22 Primary Charging Assembly Fan .....................................................................................................................10- 27

10.5.22.1 Before Removing Primary Charging Fan ........................................................................................................................ 10- 27

10.5.22.2 Removing the Primary Charging Cooling Fan .................................................................................................................. 10- 27

10.5.23 De-Curling Fan.................................................................................................................................................10- 27

10.5.23.1 Before Removing the Curl-Removing Fan ....................................................................................................................... 10- 27

10.5.23.2 Removing the Curl-Removing Fan ................................................................................................................................... 10- 27

10.5.24 Feeding Fan.....................................................................................................................................................10- 27

10.5.24.1 Before Removing the Feeding Fan .................................................................................................................................. 10- 27

10.5.24.2 Removing the Feeding Fan .............................................................................................................................................. 10- 28

10.5.25 HVT Fan...........................................................................................................................................................10- 28

10.5.25.1 Before Removing the HVT Fan ........................................................................................................................................ 10- 28

10.5.25.2 Removing the HVT Fan .................................................................................................................................................... 10- 28

10.5.26 Duplex Feed Fan ............................................................................................................................................. 10- 28

10.5.26.1 Before Removing the Duplex Feeding Fan ...................................................................................................................... 10- 28

10.5.26.2 Removing the Duplex Feeding Fan .................................................................................................................................. 10- 28

10.5.27 Exhaust Fan..................................................................................................................................................... 10- 29

10.5.27.1 Before Removing the Exhaust Fan .................................................................................................................................. 10- 29

10.5.27.2 Removing the Exhaust Fan .............................................................................................................................................. 10- 29

10.5.28 DC Power Supply Fan .....................................................................................................................................10- 29

10.5.28.1 Before Removing the DC Power Supply Fan ................................................................................................................... 10- 29

10.5.28.2 Removing the DC Power Supply Fan............................................................................................................................... 10- 29

10.5.29 Fixing Heater Power Supply Cooling Fan ........................................................................................................10- 30

10.5.29.1 Before Removing the Fixing Heater Power Supply Cooling Fan...................................................................................... 10- 30

10.5.29.2 Removing the Fixing Heater Power Supply Cooling Fan ................................................................................................. 10- 30

10.5.30 Circulation Duct Fan ........................................................................................................................................10- 30

10.5.30.1 Before Removing the Circulation Duct Fan ...................................................................................................................... 10- 30

10.5.30.2 Removing the Circulation Duct Fan.................................................................................................................................. 10- 30

10.5.31 Motor of Main Drive Assembly .........................................................................................................................10- 31

10.5.31.1 Before Removing the Main Motor..................................................................................................................................... 10- 31

10.5.31.2 Removing the Main Motor ................................................................................................................................................ 10- 31

10.5.32 Fixing Driver Motor...........................................................................................................................................10- 31

10.5.32.1 Before Removing the Fixing Motor ................................................................................................................................... 10- 31

10.5.32.2 Removing the Fixing Motor .............................................................................................................................................. 10- 31

10.5.33 Right Door........................................................................................................................................................10- 32

10.5.33.1 Before Removing the Right Door Unit (Upper) ................................................................................................................. 10- 32

10.5.33.2 Removing the Right Door Unit (Upper) ............................................................................................................................ 10- 32

Chapter 11 MEAP

11.1 MEAP...................................................................................................................................................... 11- 1

11.1.1 Checking the Operating Environment..................................................................................................................11- 1

11.1.2 Setting Up the Network........................................................................................................................................11- 3

11.1.3 Setting the method to login to SMS .....................................................................................................................11- 4

11.1.4 Login to SMS .......................................................................................................................................................11- 8

11.1.5 Checking Application List.....................................................................................................................................11- 9

11.1.6 Starting and Stopping a MEAP Application .......................................................................................................11- 10

11.1.7 Checking the Platform Information ....................................................................................................................11- 11

11.1.8 MEAP Specifications .........................................................................................................................................11- 12

11.1.9 Checking the System Information of a MEAP Application with SMS................................................................. 11- 13

11.1.10 Printing the System Information of a MEAP Application..................................................................................11- 14

11.1.11 Reference (Application System Information) ...................................................................................................11- 15

Contents

11.1.12 Installing an Application....................................................................................................................................11- 16

11.1.13 MEAP Enterprise Service Manager..................................................................................................................11- 18

11.1.14 Adding a License File.......................................................................................................................................11- 18

11.1.15 Disabling a License File (suspending a license) ..............................................................................................11- 20

11.1.16 Downloading/Removing an Invalidated License File ........................................................................................11- 22

11.1.17 Reusable license ..............................................................................................................................................11- 24

11.1.18 License for forwarding......................................................................................................................................11- 25

11.1.19 Uninstalling an Application ...............................................................................................................................11- 27

11.1.20 Changing Login Services .................................................................................................................................11- 28

11.1.21 Initializing the Password...................................................................................................................................11- 32

11.1.22 Creating a Backup for MEAP Application Area, Formatting the Hard Disk, Restoring the MEAP Application Area

with the Backup, Using the SST (Service Support Tool)..........................................................................................11- 32

11.1.23 Replacing the Hard Disk Drive .........................................................................................................................11- 34

11.1.24 MEAP Safe Mode.............................................................................................................................................11- 34

11.1.25 Setting HTTP port for MEAP application (level 2) ............................................................................................11- 35

11.1.26 Reference material...........................................................................................................................................11- 38

11.1.27 Option for exclusive individual measure...........................................................................................................11- 39

Chapter 12 RDS

12.1 RDS ........................................................................................................................................................ 12- 1

12.1.1 Application operation mode..................................................................................................................................12- 1

12.1.2 Service Center URL and Port Specification .........................................................................................................12- 1

12.1.3 Communication test .............................................................................................................................................12- 1

12.1.4 Communication log ..............................................................................................................................................12- 1

12.1.5 Detailed Communication log ................................................................................................................................12- 1

12.1.6 SOAP communication function ............................................................................................................................12- 1

12.1.7 Resend at SOAP transmission error....................................................................................................................12- 2

12.1.8 e-RDS setting screen ...........................................................................................................................................12- 2

12.1.9 Sleep operation ....................................................................................................................................................12- 4

12.1.10 Network Setting (Maintenance) ..........................................................................................................................12- 4

12.1.11 e-RDS Setting (Maintenance) ............................................................................................................................12- 4

12.1.12 Trouble shoot .....................................................................................................................................................12- 5

12.1.13 Error message....................................................................................................................................................12- 5

Chapter 13 Maintenance and Inspection

13.1 Periodically Replaced Parts.................................................................................................................... 13- 1

13.1.1 Outline..................................................................................................................................................................13- 1

13.1.2 Reader Unit ..........................................................................................................................................................13- 1

13.1.3 Printer Unit ...........................................................................................................................................................13- 1

13.2 Durables and Consumables ................................................................................................................... 13- 1

13.2.1 Outline..................................................................................................................................................................13- 1

13.2.2 Reader unit...........................................................................................................................................................13- 1

13.2.3 Printer Unit ...........................................................................................................................................................13- 2

13.3 Scheduled Servicing Basic Procedure ................................................................................................... 13- 2

13.3.1 Scheduled Servicing Basic Procedure .................................................................................................................13- 2

13.3.2 Periodical Servicing Chart Reader Unit................................................................................................................13- 3

13.3.3 Periodical Servicing Chart Printer Unit.................................................................................................................13- 3

13.3.4 Points to Note for Periodical Servicing.................................................................................................................13- 4

13.4 Cleaning ................................................................................................................................................. 13- 6

13.4.1 Cleaning Primary Toner Blocking Sheet .............................................................................................................13- 6

13.4.2 Cleaning Developing Toner Blocking Sheet ........................................................................................................13- 6

13.4.3 Cleaning Cleaner Scraper ...................................................................................................................................13- 6

13.4.4 Cleaning Photosensitive Drum ............................................................................................................................13- 7

13.4.5 Cleaning the fixing oil dish and the fixing cleaning belt guide ..............................................................................13- 8

Contents

Chapter 14 Standards and Adjustments

14.1 Image Adjustment Basic Procedure........................................................................................................ 14- 1

14.1.1 Making Pre-Checks .............................................................................................................................................14- 1

14.1.2 Making Checks on the Printer Unit (1/2)..............................................................................................................14- 1

14.1.3 Making Checks on the Printer Unit (2/2)..............................................................................................................14- 3

14.1.4 Making Checks on the Reader Unit .....................................................................................................................14- 4

14.1.5 Checking the Potential System............................................................................................................................14- 7

14.1.6 Checking the Surface Potential Control System..................................................................................................14- 9

14.1.7 Potential Control System Conversion Table ......................................................................................................14- 11

14.1.8 Emergency Measures for a Fault in the Potential Sensor .................................................................................14- 14

14.2 Image Adjustments ............................................................................................................................... 14- 15

14.2.1 Standards of Image Position..............................................................................................................................14- 15

14.2.2 Checking the Image Position .............................................................................................................................14- 15

14.2.3 Adjusting Side Registration................................................................................................................................14- 15

14.2.4 Adjusting the Image Leading Edge Margin........................................................................................................14- 16

14.2.5 Adjusting the Left/Right Non-Image Width.........................................................................................................14- 16

14.2.6 Adjusting the Leading Edge Non-Image Width..................................................................................................14- 16

14.3 Scanning System .................................................................................................................................. 14- 17

14.3.1 After Replacing the Reader Controller PCB ......................................................................................................14- 17

14.3.2 When Replacing the CCD Unit .......................................................................................................................... 14- 17

14.3.3 Adjusting the Position of the No. 1/No. 2 Mirror Base ....................................................................................... 14- 17

14.3.4 When Replacing the Copyboard Glass..............................................................................................................14- 18

14.3.5 When Replacing the Reading Glass ..................................................................................................................14- 18

14.3.6 When Replacing the Scanning Lamp ................................................................................................................14- 18

14.3.7 After Replacing the Inverter PCB.......................................................................................................................14- 18

14.4 Laser Exposure System........................................................................................................................ 14- 18

14.4.1 When Replacing the Scanner Unit.....................................................................................................................14- 18

14.5 Image Formation System...................................................................................................................... 14- 18

14.5.1 Outline ..............................................................................................................................................................14- 18

14.5.2 Routing Charging Wire .....................................................................................................................................14- 18

14.5.3 Routing Grid for Primary Charging Assembly ...................................................................................................14- 19

14.5.4 Adjusting Height of Charging Wire ....................................................................................................................14- 19

14.5.5 Mounting Cleaning Blade ..................................................................................................................................14- 20

14.5.6 Removing Side Seal .........................................................................................................................................14- 20

14.6 Fixing System ....................................................................................................................................... 14- 20

14.6.1 Applying Grease After Replacing the Fixing Roller............................................................................................14- 20

14.6.2 Adjusting the Nip Width .....................................................................................................................................14- 21

14.6.3 Adjusting the Fixing Web Solenoid (SL9) ..........................................................................................................14- 21

14.6.4 After Replacing the Fixing Web .........................................................................................................................14- 21

14.6.5 Adjusting the Fixing Inlet Guide Solenoid (SL1) ................................................................................................14- 21

14.6.6 Adjusting the Position of the Fixing Inlet Guide .................................................................................................14- 21

14.7 Electrical Components .......................................................................................................................... 14- 21

14.7.1 When Replacing DC Controller PCB ................................................................................................................14- 21

14.7.2 When Replacing HVT PCB ...............................................................................................................................14- 22

14.7.3 After Replacing the HDD ...................................................................................................................................14- 22

14.7.4 When Replacing the Main Controller PCB.........................................................................................................14- 22

14.8 Pickup/Feeding System ........................................................................................................................ 14- 22

14.8.1 Points to Note When Mounting the Pickup Roller..............................................................................................14- 22

14.8.2 Points to Note When Mounting the Separation Roller .......................................................................................14- 22

14.8.3 The Points to Mount the Feeding Roller ............................................................................................................14- 22

14.8.4 Adjusting the Pressure of the Deck/Cassette Separation Roller .......................................................................14- 23

14.8.5 Adjusting the Pressure of the Manual Separation Roller ...................................................................................14- 23

14.8.6 Adjusting the Position of the Pickup Solenoid (SL3, SL4) of the Cassette 3/4 ..................................................14- 23

14.8.7 Adjusting the Position of the Delivery Flapper Solenoid (SL5) .......................................................................... 14- 23

14.8.8 Adjusting the Position of the Right Deck Pickup Solenoid (SL6) .......................................................................14- 23

Contents

14.8.9 Adjusting the Position of the Left Deck Pickup Solenoid....................................................................................14- 24

14.8.10 Mounting the Reversing Flapper Solenoid .......................................................................................................14- 24

14.8.11 Attaching the Side Guide Timing Belt in the Manual Feed Tray Assembly ......................................................14- 24

14.8.12 Adjusting the Position of the Lifter Motor M20/M21 of the Cassette 3/4 ..........................................................14- 24

Chapter 15 Correcting Faulty Images

15.1 Making lnitial Checks .............................................................................................................................. 15- 1

15.1.1 Site Environment..................................................................................................................................................15- 1

15.1.2 Checking the Originals for Symptoms..................................................................................................................15- 1

15.1.3 Copyboard Cover, Copyboard Glass, and Standard White Plate ........................................................................15- 1

15.1.4 Checking the Charging Assemblies .....................................................................................................................15- 1

15.1.5 Checking the Developing Assembly.....................................................................................................................15- 1

15.1.6 Checking the Paper..............................................................................................................................................15- 1

15.1.7 Checking the Periodically Replaced Parts ...........................................................................................................15- 1

15.1.8 Image Adjustment Basic Procedure.....................................................................................................................15- 1

15.1.9 Others ..................................................................................................................................................................15- 1

15.2 Troubleshooting...................................................................................................................................... 15- 2

15.2.1 Malfunction...........................................................................................................................................................15- 2

15.2.1.1 Malfunction/Faulty Detection ................................................................................................................................................ 15- 2

15.3 Outline of Electrical Components ........................................................................................................... 15- 2

15.3.1 Clutch/Solenoid....................................................................................................................................................15- 2

15.3.1.1 Clutches and Solenoids ....................................................................................................................................................... 15- 2

15.3.2 Motor ....................................................................................................................................................................15- 3

15.3.2.1 Motors .................................................................................................................................................................................. 15- 3

15.3.3 Fan .......................................................................................................................................................................15- 6

15.3.3.1 Fans ..................................................................................................................................................................................... 15- 6

15.3.4 Sensor..................................................................................................................................................................15- 8

15.3.4.1 Sensors ................................................................................................................................................................................ 15- 8

15.3.5 Switch.................................................................................................................................................................15- 12

15.3.5.1 Switches ............................................................................................................................................................................. 15- 12

15.3.6 Lamps, Heaters, and Others..............................................................................................................................15- 13

15.3.6.1 Lamps, Heaters, and Others .............................................................................................................................................. 15- 13

15.3.7 PCBs ..................................................................................................................................................................15- 15

15.3.7.1 PCBs ................................................................................................................................................................................. 15- 15

15.3.8 Connectors.........................................................................................................................................................15- 16

15.3.8.1 Connectors ......................................................................................................................................................................... 15- 16

15.3.9 Variable Resistors (VR), Light-Emitting Diodes (LED), and Check Pins by PCB...............................................15- 23

15.3.9.1 Variable Resistors (VR), Light-Emitting Diodes, and Check Pins by PCB ......................................................................... 15- 23

15.3.9.2 DC Controller PCB ............................................................................................................................................................. 15- 23

15.3.9.3 DC Power Supply PCB ...................................................................................................................................................... 15- 24

15.3.9.4 HVT PCB............................................................................................................................................................................ 15- 24

Chapter 16 Self Diagnosis

16.1 Error Code Table .................................................................................................................................... 16- 1

16.1.1 Error Code............................................................................................................................................................16- 1

16.2 Error Code Details .................................................................................................................................. 16- 2

16.2.1 Detail Error Code .................................................................................................................................................16- 2

16.2.2 E602 in Detail.....................................................................................................................................................16- 10

16.3 Error Code (SEND)............................................................................................................................... 16- 11

16.3.1 Results of Self-Diagnosis ...................................................................................................................................16- 11

16.3.2 Error Codes........................................................................................................................................................16- 12

16.4 Jam Code ............................................................................................................................................. 16- 15

16.4.1 Jam Code (machine proper) ..............................................................................................................................16- 15

16.4.2 Jam Code (finisher-related)................................................................................................................................16- 16

16.4.3 Jam Code (ADF-related)....................................................................................................................................16- 17

Contents

16.5 Alarm Code ...........................................................................................................................................16- 18

16.5.1 Alarm Code........................................................................................................................................................16- 18

Chapter 17 Service Mode

17.1 Outline .................................................................................................................................................... 17- 1

17.1.1 Service mode screen configuration .....................................................................................................................17- 1

17.1.2 Entering or selecting service modes....................................................................................................................17- 1

17.1.3 Exiting service modes..........................................................................................................................................17- 2

17.1.4 Backing Up Service Mode ...................................................................................................................................17- 2

17.1.5 Initial screen.........................................................................................................................................................17- 2

17.1.6 Main/intermediate item screen.............................................................................................................................17- 3

17.1.7 Sub-item screen...................................................................................................................................................17- 3

17.2 DISPLAY (Status Display Mode) ............................................................................................................17- 4

17.2.1 COPIER ...............................................................................................................................................................17- 4

17.2.1.1 COPIER List......................................................................................................................................................................... 17- 4

17.2.2 FEEDER ..............................................................................................................................................................17- 9

17.2.2.1 FEEDER List ........................................................................................................................................................................ 17- 9

17.3 I/O (I/O Display Mode) ............................................................................................................................ 17- 9

17.3.1 Outline .................................................................................................................................................................17- 9

17.3.2 R-CON ...............................................................................................................................................................17- 10

17.3.3 FEEDER ............................................................................................................................................................17- 11

17.3.4 SORTER............................................................................................................................................................17- 12

17.3.5 MN-CON ............................................................................................................................................................17- 17

17.3.6 P-CON ...............................................................................................................................................................17- 17

17.4 ADJUST (Adjustment Mode)................................................................................................................. 17- 21

17.4.1 COPIER .............................................................................................................................................................17- 21

17.4.1.1 COPIER List....................................................................................................................................................................... 17- 21

17.4.2 FEEDER ............................................................................................................................................................17- 24

17.4.2.1 FEEDER List ...................................................................................................................................................................... 17- 24

17.4.3 SORTER............................................................................................................................................................17- 24

17.4.3.1 SORTER List...................................................................................................................................................................... 17- 24

17.5 FUNCTION (Operation/Inspection Mode)............................................................................................. 17- 25

17.5.1 COPIER .............................................................................................................................................................17- 25

17.5.1.1 COPIER List....................................................................................................................................................................... 17- 25

17.5.2 FEEDER ............................................................................................................................................................17- 31

17.5.2.1 FEEDER List ...................................................................................................................................................................... 17- 31

17.6 OPTION (Machine Settings Mode) ....................................................................................................... 17- 32

17.6.1 COPIER .............................................................................................................................................................17- 32

17.6.1.1 COPIER List....................................................................................................................................................................... 17- 32

17.6.2 FEEDER ............................................................................................................................................................17- 51

17.6.2.1 FEEDER List ...................................................................................................................................................................... 17- 51

17.6.3 SORTER............................................................................................................................................................17- 51

17.6.3.1 SORTER List...................................................................................................................................................................... 17- 51

17.6.4 BOARD ..............................................................................................................................................................17- 51

17.6.4.1 BOARD List........................................................................................................................................................................ 17- 51

17.7 TEST (Test Print Mode) ........................................................................................................................ 17- 52

17.7.1 COPIER .............................................................................................................................................................17- 52

17.7.1.1 COPIER List....................................................................................................................................................................... 17- 52

17.8 COUNTER (Counter Mode) ..................................................................................................................17- 53

17.8.1 COPIER .............................................................................................................................................................17- 53

17.8.1.1 COPIER List....................................................................................................................................................................... 17- 53

Chapter 18 Upgrading

18.1 Outline .................................................................................................................................................... 18- 1

18.1.1 Outline of Upgrading the Machine .......................................................................................................................18- 1

Contents

18.1.2 Outline of the Service Support Tool ....................................................................................................................18- 1

18.2 Making Preparations............................................................................................................................... 18- 3

18.2.1 Registering the System Software.........................................................................................................................18- 3

18.2.2 Making Connections.............................................................................................................................................18- 5

18.3 Formatting the HDD................................................................................................................................ 18- 7

18.3.1 Formatting All Partitions.......................................................................................................................................18- 7

18.3.2 Formatting Selected Partitions .............................................................................................................................18- 8

18.3.3 Formatting the Partitions......................................................................................................................................18- 8

18.4 Downloading System Software............................................................................................................. 18- 10

18.4.1 Downloading System .........................................................................................................................................18- 10

18.4.1.1 Outline................................................................................................................................................................................ 18- 10

18.4.1.2 Downloading Procedure ..................................................................................................................................................... 18- 10

18.4.2 Downloading RUI, and Language ......................................................................................................................18- 13

18.4.2.1 Outline................................................................................................................................................................................ 18- 13

18.4.2.2 Downloading Procedure ..................................................................................................................................................... 18- 14

18.4.3 Downloading SDICT...........................................................................................................................................18- 15

18.4.3.1 Outline................................................................................................................................................................................ 18- 15

18.4.3.2 Downloading Procedure ..................................................................................................................................................... 18- 15

18.4.4 Downloading MEAPCONT .................................................................................................................................18- 17

18.4.4.1 Outline................................................................................................................................................................................ 18- 17

18.4.4.2 Downloading Procedure ..................................................................................................................................................... 18- 17

18.4.5 Downloading KEY ..............................................................................................................................................18- 18

18.4.5.1 Outline................................................................................................................................................................................ 18- 18

18.4.5.2 Downloading Procedure ..................................................................................................................................................... 18- 19

18.4.6 Downloading the TTS.........................................................................................................................................18- 20

18.4.6.1 Outline................................................................................................................................................................................ 18- 20

18.4.6.2 Downloading Procedure ..................................................................................................................................................... 18- 20

18.4.7 Downloading BOOT ...........................................................................................................................................18- 21

18.4.7.1 Outline................................................................................................................................................................................ 18- 21

18.4.7.2 Downloading Procedure ..................................................................................................................................................... 18- 22

18.4.8 Downloading Dcon and Rcon.............................................................................................................................18- 23

18.4.8.1 Outline................................................................................................................................................................................ 18- 23

18.4.8.2 Downloading Procedure ..................................................................................................................................................... 18- 24

18.4.9 Downloading G3 FAX.........................................................................................................................................18- 25

18.4.9.1 Outline................................................................................................................................................................................ 18- 25

18.4.9.2 Downloading Procedure ..................................................................................................................................................... 18- 26

18.4.10 Uploading and Downloading Backup Data.......................................................................................................18- 27

18.4.10.1 Outline .............................................................................................................................................................................. 18- 27

18.4.10.2 Uploading Procedure........................................................................................................................................................ 18- 28

18.4.10.3 Downloading Procedure ................................................................................................................................................... 18- 30

Chapter 19 Service Tools

19.1 Service Tools .......................................................................................................................................... 19- 1

19.1.1 List of Special Tools.............................................................................................................................................19- 1

19.1.2 List of Solvents/Oils..............................................................................................................................................19- 1

Chapter 1 Introduction

Contents

Contents

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

1.1.1 System Configuration with Pickup/Delivery Accessories (230V)OTHER................................................................................. 1-1

1.1.2 System Configuration with Printing/Transmission Accessories (230V)OTHER........................................................................ 1-1

1.1.3 Functions and Printing/Transmission Accessories (230V).......................................................................................................... 1-2

1.2 Product Specifications....................................................................................................................................................1-3

1.2.1 Names of Parts ............................................................................................................................................................................. 1-3

1.2.1.1 External view ..................................................................................................................................................................................................1-3

1.2.1.2 Cross-Section ..................................................................................................................................................................................................1-4

1.2.2 Using the Machine ....................................................................................................................................................................... 1-6

1.2.2.1 Turning On the Power Switch .........................................................................................................................................................................1-6

1.2.2.2 Turning Off the Power Switch ........................................................................................................................................................................1-6

1.2.2.3 Control Panel...................................................................................................................................................................................................1-8

1.2.3 User Mode Items.......................................................................................................................................................................... 1-8

1.2.3.1 Common Settings ............................................................................................................................................................................................1-8

1.2.3.2 Timer Settings .................................................................................................................................................................................................1-9

1.2.3.3 Adjustment/Cleaning.......................................................................................................................................................................................1-9

1.2.3.4 Report Output..................................................................................................................................................................................................1-9

1.2.3.5 System Control Settings................................................................................................................................................................................1-10

1.2.3.6 Copier Specifications ....................................................................................................................................................................................1-11

1.2.3.7 Transmission/Reception Settings ..................................................................................................................................................................1-12

1.2.3.8 Box Settings ..................................................................................................................................................................................................1-13

1.2.3.9 Printer Settings ..............................................................................................................................................................................................1-13

1.2.3.10 Address Book Settings ................................................................................................................................................................................1-14

1.2.3.11 Voice Guide Settings...................................................................................................................................................................................1-15

1.2.4 Maintenance by the User ........................................................................................................................................................... 1-15

1.2.4.1 Cleaning ........................................................................................................................................................................................................1-15

1.2.4.2 Checks ...........................................................................................................................................................................................................1-16

1.2.5 Safety ......................................................................................................................................................................................... 1-17

1.2.5.1 Safety of the Machine's Laser Unit ...............................................................................................................................................................1-17

1.2.5.2 CDRH Regulations........................................................................................................................................................................................1-17

1.2.5.3 Handling the Machine's Laser Unit...............................................................................................................................................................1-18

1.2.5.4 Safety of Toner..............................................................................................................................................................................................1-18

1.2.6 Product Specifications ............................................................................................................................................................... 1-18

1.2.6.1 Product Specifications...................................................................................................................................................................................1-18

1.2.7 Function List .............................................................................................................................................................................. 1-20

1.2.7.1 Paper Types ...................................................................................................................................................................................................1-20

1.2.7.2 Printing Speed ...............................................................................................................................................................................................1-20

1.2.7.3 Paper Types/Printing Speed (K paper)..........................................................................................................................................................1-21