Canon iR1600, iR2000 Service Manual adf j1

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ADF-J1

REVISION 0

SEPT . 2001

FY8-13HK-000

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.

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.

Printed in Japan

Imprimé au Japon

Caution

Use of this manual should be strictly supervised to avoid disclosure of confidential information.

INTRODUCTION

Memo

1 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).

REF.

Indicates an item prohibiting disassembly to avoid electric shocks or problems.

Indicates an item requiring disconnection of the power plug from the electric outlet.

Indicates an item intended to provide notes assisting the understanding of the topic in question.

Indicates an item of reference assisting the understanding of the topic in question.

Provides a description of a service mode.

Provides a description of the nature of an error indication.

Refers to the Copier Basics Series for a better understanding of the contents.

2001 CANON INC. 2001 2001 2001 2001 CANON ADF-J1 REV.0 SEPT. 2001

INTRODUCTION

2 Outline of the Manual

This Service Manual contains basic facts and figures needed to service the ADF-J1 in the

field, and it consists of the following chapters:

Chapter 1 General Description: features, specifications, methods of operation Chapter 2 Outline of Operation: mechanical systems by function, electrical systems

in reference to principles of operation, timing of operation; construction and outline of electrical circuitry

Chapter 3 Mechanical Systems construction of mechanical systems; disassembly,

assembly, and adjustments

Chapter 4 Maintenance and Inspection:

periodically replacement parts, durables and

consumables; scheduled servicing chart Chapter 5 Troubleshooting standards, adjustments, troubleshooting tables Appendix: general timing chart, list of signals/abbreviations,

general circuit diagrams

For installation, refer to the Installation Procedure found in the shipping box; this manual

omits descriptions of the installation work.

2001 CANON INC. 2001 2001 2001 2001 CANON ADF-J1 REV.0 SEPT. 2001

INTRODUCTION

The descriptions in this Service Manual are based on he following rules:

1. In each chapter, the uses of the function in question and its relationship to electrical and mechanical systems are discussed and the timing of operation of its associated parts is explained by means of outlines and diagrams. In the diagrams, the symbol

represents a mechanical path, while the symbol

with a name next to it indicates the flow of an electric signal. The expression “turn on the power” means turning on the power switch, closing the front door, and closing the delivery door so that the machine will be supplied with power.

2. In circuit diagrams (digital), a signal whose level is High is expressed as being ‘1’, while a single whose level is Low is expressed as being ‘0’; the level of voltage, however, varies from circuit to circuit. The machine uses CPUs, whose internal mechanisms cannot be checked in the field, and, therefore, are not explained. In addition, the machine’s PCBs are not intended for repairs at the user’s and, therefore, are explained by means of block diagrams: two types are used, i.e., between sensors and inputs of PCBs equipped with a control or drive function and between outputs equipped with a control or drive function and loads; in addition, functional block diagrams are used at times.

Changes made to the machine for product improvement are communicated in the form of a Service Information bulletin as needed. All ser vice persons are expected to go through all service documentation including the bulletins and be equipped to respond to the needs of the field (as by being able to identify possible causes of problems).

2001 CANON INC. 2001 2001 2001 2001 CANON ADF-J1 REV.0 SEPT. 2001

iii

Contents

CHAPTER 1 GENERAL DESCRIPTION

1 Features............................................... 1-1

2 Specifications...................................... 1-2

2.1 Specifica tions ............................. 1-2

3 Names of Components........................1-3

3.1 External View............................. 1-3

3.2 Cross Section ............................. 1-4

4 Using the Machine .............................. 1-5

4.1 Routine Maintenance by the User 1-5

CHAPTER 2 OUTLINE OF OPERATION

1 Basic Construction.............................. 2-1

1.1 Outline of the Electrical Circuitry 2-1

1.2 Inputs to and Outputs from the

ADF Drive PCB......................... 2-2

2 Basic Operations ................................. 2-3

2.1 Outline ....................................... 2-3

2.2 Sequence of Operation...............2-4

2.2.1 Outline ................................. 2-4

2.2.2 Picking Up and Delivering Originals (Single-sided original

→ Single-sided print) .......... 2-4

2.3 Detecting Originals .................... 2-5

2.3.1 Outline ................................. 2-5

2.3.2 Detecting the Presence/Absence

of an Original....................... 2-6

2.3.3 Detecting the Last Original . 2-6

2.3.4 Detecting the Size of an

Original ................................ 2-7

2.4 Picking Up and Separating an

Original .................................... 2-10

2.4.1 Basic Pickup Operation ..... 2-10

2.4.2 Separation/Pickup

Mechanism ........................ 2-13

2.4.3 Sequence of Pickup

Operation ........................... 2-19

2.4.4 Pickup Unit and the Stopper 2-1 9

2.4.5 Controlling the Feed Motor

(M1) ................................... 2-20

3 Jams .................................................. 2-21

3.1 Outline ..................................... 2-21

3.2 Jam/Error Report ...................... 2-21

3.2.1 Generating a Jam/Error

Report ................................ 2-21

3.2.2 List of Jam Codes .............. 2-22

4 Power Supply.................................... 2-23

2001 CANON INC. 2001 2001 2001 2001 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 3 MECHANICAL SYSTEMS

CONTENTS

1 Basic Construction.............................. 3-1

1.1 External Covers.......................... 3-1

1.1.1 Removing the Front Cover .. 3-2

1.1.2 Removing the Rear Cover ... 3-2

1.1.3 Removing the Feeder Cover 3-2

2 Pickup System .................................... 3-3

2.1 Separation Roller Unit ............... 3-3

2.1.1 Removing the Separation

Roller Unit ........................... 3-3

2.1.2 Mounting the Separation

Roller Unit ........................... 3-4

2.2 Separation Pad ........................... 3-5

2.2.1 Removing the Pre-Separation

Pad/Separation Pad .............. 3-5

3 Drive System....................................... 3-6

3.1 Feeder Motor .............................. 3-6

3.1.1 Removing the Feeder Motor 3-6

3.2 Drive System .............................. 3-7

3.2.1 Removing the Feeder Unit...3-7

3.2.2 Removing the Clutch ........... 3-9

3.2.3 Disassembling the Feeder

Drive Assembly ................. 3-11

3.2.4 Removing the Platen

Roller ................................. 3-12

3.2.5 Removing the Feeder

Roller ................................. 3-13

3.2.6 Remove the Feeder

Roller 2 .............................. 3-15

3.2.7 Removing the Pull-Off

Roller .................................3-16

3.2.8 Adjusting the Platen

Guide L ............................. 3-17

4 Electrical Systems............................. 3-18

4.1 ADF Driver PCB...................... 3-18

4.1.1 Removing the ADF Driver

PCB.................................... 3-18

4.2 Sensors in the Feeder Unit....... 3-18

4.2.1 Removing the Sensor Unit. 3-18

4.2.2 Removing the Sensors ....... 3-19

4.3 Sensors in the Original Pickup

Tray .......................................... 3-19

4.3.1 Removing the Original Width

Sensor ................................ 3-19

4.3.2 Mounting the Slide Guide

Gear Plate .......................... 3-20

CHAPTER 4 MAINTENANCE AND INSPECTION

1 Periodically Replaced Parts ................ 4-1

2 Durables and Consumables ................ 4-1

3 Scheduled Servicing Chart ................. 4-1

4 Replacement ....................................... 4-2

2001 CANON INC. 2001 2001 2001 2001 CANON ADF-J1 REV.0 SEPT. 2001

4.1 Replacing the Feed Roller Guide

(dust-collecting tape) ................. 4-2

4.2 Replacing the Stamp .................. 4-2

CONTENTS

CHAPTER 5 TROUBLESHOOTING

1 Standards and Adjustments.................5-1

1.1 Basic Adjustments...................... 5-1

1.1.1 Adjusting the Height............ 5-1

1.1.2 Adjusting the Right Angle ... 5-2

1.1.3 Adjusting the Read

Position ................................ 5-5

1.1.4 Adjusting the Ratio

Mechanism .......................... 5-6

1.1.5 Adjusting the Horizontal

Registration..........................5-7

1.1.6 Adjusting the Leading Edge

Registration........................5-10

2 Troubleshooting Malfunctions .......... 5-12

2.1 Troubleshooting Malfunctions . . 5-12

APPENDIX

2.1.1 Pickup Fault ....................... 5-12

2.1.2 The output has black lines in

sub scanning direction ....... 5-12

2.1.3 The output has blurred

images ............................... 5-14

2.1.4 The output is out of focus or

has black fogging............... 5-14

3 Arrangement of Electrical

Components ..................................... 5-15

3.1 Sensors ..................................... 5-15

3.2 Motors, Clutches, Solenoids,

PCBs, and Others ..................... 5-16

4 Self Diagnosis ................................... 5-17

4.1 Outline ..................................... 5-17

1 General Timing Charts....................... A-1

1.1 Flow-Scanning a Single-sided A4

Document .................................. A-1

2 Signal Name/Designation List ........... A-3

3 General Block Diagram ..................... A-5

4 ADF Controller Block Diagram ........ A-6

5 Jam Code List .................................... A-7

6 Special Tools List............................... A-8

7 Solvent/Grease List............................ A-8

2001 CANON INC. 2001 2001 2001 2001 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 1

GENERAL DESCRIPTION

2001 CANON INC. 2001 2001 2001 2001 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 1 GENERAL DESCRIPTION

1 Features

a.Exclusive Use for Stream Reading

The machine is designed for reading all originals in stream reading mode.

b.Control by the Host Machine

The machine is not equipped with a controller PCB, and is directly controlled by its host

machine.

c.Original Size Detection

The machine is able to identify the size of originals based on length (feed direction) and

width for communication to its host machine.

d.Extra-Length Mode

When extra length mode is selected, the machine will read an original as long as 1000

mm in length.

e.Mixed Original Sizes (of the same width)

The machine accepts 2 different sizes of originals*.

* Must not be of different configurations.

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

1-1

CHAPTER 1 GENERAL DESCRIPTION

2 Specifications

2.1 Specifications

Item

Method of original pickup Orientation of original Placement of original Method of original separation Type of original

Size of original

Original tray

Delivery assembly Original handling Identification of original size Detection of residual original Originals of mixed sizes Communication with host machine Power supply Weight Dimensions

Serial number

Operating environment

Temperature Humidity

Specifications

Auto pickup/delivery

Original tray: Face-up Original tray: Center reference Top separation

Single-sided original: Continuous feeding (52 to 105 g/m Single feeding (38 to 128 g/m Book Original: 40 mm/1.57 in height AB: B6/A5/B5/A4/A5R/B5R/A4R/

B4/A3

Inch: STMT/LTR/LTRR/LGL/11"x 17"

Width: 148 mm/5.83 in (A5R) to 297 mm/11.7 in (A3) Length:128 mm/5.04 in (STMT) to 432 mm/17 in (11" x 17") 50 sheets (small size) 25 sheets (large size) 50 sheets Single-sided original Yes (default size only)

Yes (in association with host machine)

Yes (if of same configuration) Directly controlled by host machine

24 VDC, 5 VDC; from host machine

7.1 kg/15.6 lb (approx.) 592 x 484 x 22 mm/23.3 x 19.1 x 0.87 in (W x D x H) A-configuration: XGKxxxxx Inch/A-configuration: XGJxxxxx AB-configuration: XGHxxxxx AB-configuration: XGLxxxxx

Same as host machine Same as host machine

)

Remarks

If 432 mm/17.0 in or

or less.

longer, 60 to 90 g/m

In extra-length mode, as long as 1000 mm/39.4 in.

Paper of 80 g/m Paper of 80 g/m Paper of 80 g/m

1-2

T01-201-01

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

3 Names of Components

3.1 External View

CHAPTER 1 GENERAL DESCRIPTION

[2]

[1]

[3]

F01-301-01

[4]

[6]

[5]

[1] Feeder cover [2] Rear cover [3] Slide guide

[4] Original pickup tray [5] Front cover [6] Original delivery assembly

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

1-3

CHAPTER 1 GENERAL DESCRIPTION

3.2 Cross Section

[1] [5]

[2]

[8] [7][9]

[3]

[4]

[6]

F01-302-01

[1] Pull-off roller [2] Separation roller [3] Separation pad [4] Pickup roller [5] Original pickup tray

[6] Delivery roller [7] Feeding roller 2 [8] Platen roller [9] Feeding roller 1

1-4

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 1 GENERAL DESCRIPTION

4.Using the Machine

4.1 Routine Maintenance by the User

Instruct the user to clean the following component about once a month:

Component

Copyboard glass

Copyboard glass retainer Vertical size plate

Platen roller White plate (copyboard cover)

Wipe with a cloth moistened with water or alcohol; then, dry wipe.

Description

T01-401-01

To clean, go through the following:

1) Clean the copyboard glass, copyboard glass retainer, and vertical size plate with a cloth moistened with water; then, dry wipe them with a dry, soft cloth.

Remarks

• Parts of the reader assembly.

2) Wipe the platen roller and the copyboard cover with a cloth moistened with water; then dry wipe them with a dry, soft cloth.

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

F01-401-01

F01-401-02

1-5

CHAPTER 2

OUTLINE OF OPERATION

2001 CANON INC. 2001 2001 2001 2001 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 2 OUTLINE OF OPERATION

1 Basic Constr uction

1.1 Outline of the Electrical Circuitry

The machine is not equipped with a controller PCB; it, however, has a driver PCB. Its electrical mechanisms are controlled by the controller PCB of its host machine (CPU identified as IC1).

The CPU of the host machine interprets the input signals from sensors, and sends signals to the machine’s driver PCB to drive the loads (motor, clutch, solenoid) at such times as programmed in advance.

ADF Driver PCB

Motor

Sensor

drive

signal

Controller

PCB

Driver IC

(IC1)

Power supply

Host machine

Clutch

Solenoid

+24V

Sensor

J2-1,2

PCB

F02-101-01

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

2-1

CHAPTER 2 OUTLINE OF OPERATION

1.2 Inputs to and Outputs from the ADF Drive PCB

Inputs to and Outputs from the ADF Driver

Last original detection sensor

Length sensor 1

Length sensor 2

Original width sensor 1

Original width sensor 2

Original placement sensor

PI1

PI2

PI3

PI4

PI5

PI6

J21-3

J22-3

J23-3

J24-3

J25-3

J26-3

-2

-1

-2

-1

-2

-1

-2

-1

-2

-1

-2

J102-1

-10

-12

-11

-13

-15

-14

+3.3VE

Relay PCB

J101

-7

-6

-5

-4

-3

-2

-1

J3-1

J6-1

-2

-3

-4

-5

-6

-7

-9

-8

J5-1

-2

-3

-2

-3

-4

-3

-2

LENG1

LENG2 LENG3

WID1

WID2

SET

ADF driver PCB

+3.3VE

When paper is present, '1'.

Detects paper width.

+3.3VS

When paper is present, '0'.

Registration sensor

Read sensor

Cover open/closed sensor

Stamp solenoid

Pickup clutch

Feeder motor

PI7

PI8

PI9

SL1

CL1

J27-3

J28-3

J31-3

-10

-12

-11

J7-1

J8-1

J4-1

-4

-6

-5

-7

-9

-8

-2

-3

-4

-5

-6

+3.3VE

REG

+3.3VE

READ

+3.3VE

DFCVS

+24V

STAMP_SL

+24V

MOTA MOTA* MOTB MOTB*

When paper is present, '1'.

When the ADF cover is opened, '1'.

When '0', SL1 goes ON.

When '0', CL1 goes ON.

For details, see p. 2-20.

J30

-2

-1

-2

-1

-2

-1

-2

-1

-3

-2

-4

-6

-5

-1

-2

-1

-2

-3

J13

J201

-4

-1

-3

-1

-2

-1

-3

-2

-1

2-2

F02-102-01

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 2 OUTLINE OF OPERATION

2.Basic Operations

2.1 Outline

The machine is designed exclusively for stream reading.

The machine uses a single motor to pick up and move originals.

Name (Notation)

Feeder motor (M1)

Moves originals.

T02-201-01

The following is a drive diagram of the machine:

ADF driver PCB

Function

PI8

CL1

Original placement signal (SET) J5-3

PI6

Stamp solenoid drive signal (STP_SL) J7-2

SL1

Last original detection signal (LENG1) J3-3

PI1

Original width detection signal 2 (WID2) J6-4

PI5

Original width detection signal 1 (WID1) J6-3

PI4

Original detection signal (READ) J5-9

Original detection signal (REG) J5-6

PI7

Feed motor drive signal (FMOT) J4

Pickup clutch drive signal (CL) J8-2

F02-201-01

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

Original length detection signal 1 (LENG2) J6-1

PI2

Original length detection signal 2 (LENG3) J6-2

PI3

2-3

CHAPTER 2 OUTLINE OF OPERATION

2.2 Sequence of Operation

2.2.1 Outline

The machine does not possess a reversing mechanism, and picks up and delivers originals

as they are.

2.2.2 Picking Up and Delivering Originals (Single-sided original → Single-sided pr int)

The machine moves the original as follows:

Original

Separation

Pickup

Reading

Delivery

2-4

Read timing detection

F02-202-01

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 2 OUTLINE OF OPERATION

2.3 Detecting Originals

2.3.1 Outline

The machine possesses the following 3 original detection mechanisms:

Item

Original detection

Last original detection

Initial original size detection

• Feed direction

• Width direction

Description

Detects the presence/absence of an original in the original pickup tray . Determines whether the original being fed is a last original.

Detects the length of the original placed in the original pickup tray .

• Identification between small size and large size Detects the width of the original placed in the original pickup tray .

T02-203-01

Sensor used (Notation)

Original placement sensor (PI6)

Last original sensor (PI1) Registration sensor (PI7)

Length sensor 1/2 (PI1/PI2)

Original width sensor 1/2 (PI4/ PI5)

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

2-5

CHAPTER 2 OUTLINE OF OPERATION

2.3.2 Detecting the Presence/Absence of an Original

The presence/absence of an original in the original tray is detected by the original placement sensor (PI6). The detecting lever operates in conjunction with the light-blocking plate. When an original is placed in the original tray, the light from the photointerrupter is blocked, thereby causing the original placement sensor (PI6) to generate the original placement signal (SET).

ADF driver PCB

SET

PI6

Original

F02-203-01

2.3.3 Detecting the Last Original

The last original sensor (PI1) and the registration sensor (PI7) are used to find out whether or not the original being picked is the last original.

When the last original has been picked up and its trailing edge moves past the last original detecting lever, the detecting lever blocks the light of the photointerrupter while operating in association with the light-blocking plate. At this time, if the leading edge of the original is as far as the registration sensor (PI7), the last original sensor (PI1) generates the last original detection signal (LENG1) to communicate to the host machine that the original in question is the last from the stack in the original tray.

2-6

PI7

ADF driver PCB

LENG1

PI1

F02-203-02

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 2 OUTLINE OF OPERATION

2.3.4 Detecting the Size of an Original

a.Detecting the Length in Feed Direction

The length of an original in feed direction is detect by the length sensor 1 (PI1) and the length sensor 2 (PI2). When an original is placed in the original tray, the detecting levers of these 2 length sensors operate in conjunction with the light-blocking plate to block the light of the photointerrupter.

In mixed original size mode, however the length is detected based on the number of lines read by the scanner connected to it.

ADF driver PCB

Original

LENG3

LENG2

F02-203-03

PI2

Detecting lever

PI3

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

2-7

CHAPTER 2 OUTLINE OF OPERATION

b.Detecting the Width

The width of an original is detected using the width sensor 1 (PI4) and the width sensor 2 (PI5) found in the original tray in relation to the slide guide, whose movement will block or unblock the light of the photointerrupter.

ADF driver PCB

PI5

WID2

WID1

F02-203-04

PI4

2-8

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 2 OUTLINE OF OPERATION

T02-203-02 shows the relationship between the length sensor signals and the sizes or

originals.

AB-Configured Paper

Width sensor 1 (PI4) Width sensor 2 (PI5) Length sensor 1 (PI2) AB-configuration

1 0 0 A5R 1 0 1 B5R 00 0A5 0 0 1 A4R 01 0B5 0 1 1 B4R 11 0A4 1 1 1 A3R

Inch-Configured Paper

Width sensor 1 (PI4) Width sensor 2 (PI5) Length sensor 2 (PI3) Inch-configuration

1 0 0 LTRR 1 0 1 LGL 00 0LTR 0 0 1 11”x17”

T02-203-02

PI5

PI4

PI3

PI2

F02-203-05

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

2-9

CHAPTER 2 OUTLINE OF OPERATION

2.4 Picking Up and Separating an Original

2.4.1 Basic Pickup Operation

When an original is placed in the original tray and the Start key is pressed, the machine will go through the following sequence:

a.Pickup

When the electromagnetic clutch goes ON and the feed motor (M1) rotates clockwise, the pickup roller moves down, and the separation roller and the pickup roller start to rotate to pick up an original; then, the stopper moves up in conduction.

The pre-separation pad and the separation pad serve to prevent double feeding of originals.

CL1

Pre-separation pad

Stopper

Pickup roller

CL1

Original

Separation pad

F02-204-01

b.Feeding

The rollers found beyond the pull-off roller rotate at a speed about 50% higher than the separation roller. When the original reaches the pull-off roller, its movement grows faster, thereby causing the pickup roller and the separation roller to rotate in conjunction.

2-10

Pull-off roller

CL1

F02-204-02

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 2 OUTLINE OF OPERATION

c.Stream Reading and Delivery

When the leading edge of the original reaches read wait position, the machine sends the image leading edge signal to its host machine to start stream reading; thereafter, the delivery roller operates to delivery the original.

In stream reading, the host machine’s scanner is fixed in place, and the original is moved over the scanner glass for scanning.

CL1

Scanning lamp

Read glass

F02-204-03

d.End of Pickup for the 1st Original

When the trailing edge of the original moves past the pickup roller, the pickup roller will come into contact with the 2nd original. However, since the separation roller is pulled by the 1st original at a higher speed than its drive shaft, the spring clutch mounted to the shaft slips, transmitting the drive and preventing the rotation of the pickup roller and, as a result, not picking up the 2nd original.

Rating

CL1

At reset

F02-204-04

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

2-11

CHAPTER 2 OUTLINE OF OPERATION

e.Picking Up the 2nd Original

When the trailing edge of the original leaves the separation roller, the spring clutch trans-

mits the drive, causing the pickup roller to rotate to pick up the 2nd original.

CL1

Scanning lamp

Read glass

F02-204-05

f. Returning the Pickup Roller to Standby Position

When the last original moves past the original sensor and a specific period of time passes

thereafter, the electromagnetic clutch goes OFF and the feed motor stops.

When the electromagnetic clutch goes ON and the feed motor starts to rotate in reverse, the pickup roller is returned to standby position, at the end of which the feeder motor and the electromagnetic clutch goes OFF.

CL1

2-12

F02-204-06

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 2 OUTLINE OF OPERATION

2.4.2 Separation/Pickup Mechanism

The machine uses a single stepping motor to pick up, separate, and move originals. Its pickup assembly is equipped with 6 spring clutches which operate in various ways in relation to the direction of motor rotation as follows; the arrows in the diagrams indicates the direction of rotation.

Down Up

F02-204-07

a.SPCL 1 (preventing the pickup roller from moving down)

In standby, the pickup roller must be kept in up position. While the pickup roller remain in up position, its own weight tries to force the clutch shaft to rotate clockwise; this, however, is prevented by the tightening of SPCL1, which makes a connection to the serials of gears linked to the motor.

The drive occurring as a result of clockwise/counterclockwise rotation of the motor is transmitted to the shaft when the clutch goes ON, and the operation of the clutch is irrelevant.

SPCL1

Pickup roller prevent down

Down

Pickup roller

F02-204-08

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

2-13

CHAPTER 2 OUTLINE OF OPERATION

b.CPCL2 (separation roller/pickup roller drive; ascent/decent movement and upper

limit of pickup roller)

Motor in Clockwise Rotation

As the spring clutch contracts, the pickup roller and the separation roller are driven; as a result, the pickup roller is moved down to rotate. Motor Rotating in Reverse

The pickup roller is moved up, and is held in “escape” position. If the pickup roller comes into contact with the feeder cover, the spring clutch loosens to serve as a limiter, thereby preventing damage.

SPCL2 Seperation roller/pickup roller drive,

Seperation roller

UP/DOWN, upper limiter

Pickup roller

Down

F02-204-09

2-14

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 2 OUTLINE OF OPERATION

c.Coupling

The drive from the motor is transmitted by means of a coupling, from which it may reach the pickup roller drive shaft through SPCL3 or reach the sepapation roller and pickup roller through SPCL4.

SPCL4 SPCL3 Pickup roller UP

Pickup roller drive shaft

Coupling

Pickup roller DOWN

seperation roller/pickup roller drive

Separation roller

Coupling

Pickup roller

F02-204-10

d.SPCL3 (pickup roller ascent/movement)

Motor in Clockwise Rotation

As the spring clutch expands, the drive shaft on the separation roller shaft stops to rotate; SPCL4 is used to drive and to move down the pickup roller. Motor Rotating in Reverse

The spring contracts to rotate the drive shaft on the separation roller shaft, and the drive is carried through SPCL4 to move up the pickup roller.

Down

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

2-15

CHAPTER 2 OUTLINE OF OPERATION

SPCL5 Up/Down; pressure limiter (on paper)

SPCL3 Pick roller UP

F02-204-11

e.SPCL4 (pickup roller descent movement, separation roller/pic kup roller drive; one way)

Motor in Clockwise Rotation

As the spring contracts, the pickup roller is moved down; at the same time, the separation roller and the pickup roller are driven in the direction of pickup. When paper is moved by the pull-off roller, it picks up speed, pulling and causing the separation roller to rotate in response; at this time, the spring clutch expands so that the pickup roller drive shaft stops to rotate, ultimately stopping the pickup roller. Motor in Reverse Rotation

The spring clutch loosens to cut the drive.

SPCL4 Pickup roller DOWN

Separation roller

seperation roller/pickup roller drive (one-way)

2-16

F02-204-12

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 2 OUTLINE OF OPERATION

f. SPCL5 (pickup roller ascent/decent; pressure limiter)

Motor in Clockwise Rotatoiin

The pickup roller is moved down (in the direction that causes the spring to loosen) and is forced against the paper. When the pickup roller comes into contact with the paper, the spring clutch serves as a limit to keep the pressure against the paper at a specific level. Motor in Reverse Rotation

The pickup roller is moved up (in the direction that causes the spring to tighten).

SPCL5 Pickup roller

Pickup roller

Down

F02-204-13

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

2-17

CHAPTER 2 OUTLINE OF OPERATION

g.SPCL6 (pickup roller drive; one-way)

Motor in Clockwise Rotation

The drive of the belt is transmitted to the pickup roller for rotation into pickup direction (in the direction that causes the spring to tighten). When the paper is moved by the pull-off roller, its speed increases, and the pickup roller is pulled by the paper to rotate in conjunction. At this time, the spring clutch loosens, and the drive to the belt is cut. Motor in Reverse Rotation

The spring clutch loosens to cut the drive.

SPCL6 Pickup roller drive (one-way)

F02-204-14

2-18

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

2.4.3 Sequence of Pickup Operation

Start key ONOriginal set

CHAPTER 2 OUTLINE OF OPERATION

Feed motor (M1) Pickup clutch (CL1) Original placement

sensor (PI6) Registration sensor

(PI7) Read sensor (PI8)

Pickup roller Separation roller Other rollers

Original separated/

moved

: motor, roller in reverse.

Note 1: The speed increases when the paper is pulled by the pull-off roller.

1st original read 2nd original read Original delivered

Note 1 Note 1

F02-204-15

2.4.4 Pickup Unit and the Stopper

The pickup unit consists of a pickup roller and a separation roller. When the Start key is pressed or the original pickup signal arrives, the feed motor (M1) rotates to move down the pickup unit, and the pickup roller and the separation roller rotate to move the paper.

The stopper operates in conjunction with the pickup unit, and moves up. To prevent double feeding at time of pickup, the separation pad and the separation plate are used to make sure that sheets are separated.

CL1

F02-204-16

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

2-19

CHAPTER 2 OUTLINE OF OPERATION

2.4.5 Controlling the Feed Motor (M1)

The following is a diagram of the circuit used to control the feed motor (M1). The pickup

motor is a 2-phase stepping motor, and the functions of the circuit include the following:

• turning on and off the motor.

• controlling the direction of motor operation.

• controlling the speed of motor rotation.

+24V

3 1 4

5 2 6

IC1

CPU

PHA PHB

PHXA PHXB

MAPWM MBPWM

IC1 Motor driver

MOT A MOT A* MOT B

MOT B*

Host machine

controller PCB

ADF drive PCB

F02-204-17

The motor driver (IC1) on the ADF driver PCB receives commands from the host ma-

chine, and sends drive pulses to the pick motor.

The feed motor is a stepping motor, and it controls the direction and speed of rotation by changing the order in which the drive pulses (MOTA, MOTA*, MOTB, MOTB*) are sent and the frequency.

Signal Description

PHA drive pulse A PHB drive pulse B PHXA drive pulse A (reverse phase) PHXB drive pulse B (reverse phase) MAPWM reference current level setting A MBPWM reference current level setting B

2-20

T02-204-1

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 2 OUTLINE OF OPERATION

3 Jams

3.1 Outline

The machine uses the sensors shown in F02-302-01 to check for original jams at such times as stored in the ROM on the controller PCB of the host machine. A jam is identified in reference to the presence/absence of paper over a specific sensor.

The nature of a jam may be checked by generating a jam/error report in service mode.

3.2 Jam/Error Report

3.2.1 Generating a Jam/Error Report

1) Press the User mode key “ ” and then the “#” key in sequence in the control panel to

start service mode.

2) Select ‘REPORT’ using the Arrow key (right, bottommost) in the control panel of the

host machine, and press the OK key.

As a result, a jam/error report will be generated:

NN MM/DD HH : MM hh : mm P H JJJJ CCCCCC K SSSSS

NN Serial number MM/DD month/day of occurrence MM for moth, DD for day HH : MM time of occurrence HH for hour, MM for minute hh : mm time of recovery hh for recovery hour , mm for reco very minute P location general ‘4’ indicates ADF

(‘3’ indicates host, while ‘5’ indicates finisher)

H location detail ‘1’ indicates ADF

(‘0’ indicates host, while ‘2’ indicates finisher)

JJJJ jam code jam code by 4 digits

(see T02-302-01) CCCCCC counter reading counter reading at occurrence K source cassette, manual feeder SSSSS paper size paper size

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

2-21

CHAPTER 2 OUTLINE OF OPERATION

3.2.2 List of Jam Codes

The following is a list of jam codes, indicating types and related sensors.

Jam code

0001

0003

0004

0007

0009

000a

000b

0011

0012

0016

Jam type

Pickup fault

Delay jam

Stationary jam

Sheet-to-sheet gap jam

ADF open jam

Feeder cover open jam Stationary jam at power-on No paper (forced out original) Jam in response to Stop key Initialization jam

Others

Related sensor

PI7

PI7, PI8

PI8

ADF open sensor of host machine

PI9

PI7, PI8

PI6

PI7, PI8

Condition of detection

At the start of pickup, the original does not reach the registration sensor within a specific period of time. The original does not reach the sensor within a specific period of time. The original does not leave the sensor within a specific period of time. After an original is read, the next original reaches the sensor before a specific period of time. The ADF is opened while it is in operation. The feeder cover is opened while the ADF is in operation. An original exists when the power is tuned on. The original set sensor is OFF at the start of pickup. The Stop key is pressed during operation, leaving the original inside the ADF. The sensor detects an original at time of initialization. Others

2-22

PI9

PI7

PI8

PI6

T02-302-01

F02-302-01

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 2 OUTLINE OF OPERATION

4 Power Supply

The following is an outline diagram of the machine’s power supply system:

The machine is supplied by its host machine with 24 V, 5 V, and 3.3 V; 24 V is used for the motor, clutches, and solenoids; 5 v is used to drive the motor driver: and 3.3 V is used for sensor signals.

24V

1 2

24V

• Clutch

• Solenoid

Host

machine

3.3V

B11

A2 B13 B14

Motor driver

IC1

ADF driver PCB

F02-401-01

24V

3.3V

• Motor

• Sensor

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

2-23

CHAPTER 3

MECHANICAL SYSTEMS

2001 CANON INC. 2001 2001 2001 2001 CANON ADF-J1 REV.0 SEPT. 2001

1 Basic Construction

CHAPTER 3 MECHANICAL SYSTEMS

1.1 External Covers

[1] Front cover [2] Rear cover [3] Feeder cover [4] Original pickup tray [5] Original delivery assembly [6] Slide guide

Remove the covers as necessary as follows when cleaning, checking, or repairing the inside of the machine:

[2]

[3]

[6]

[4]

[5]

[1]

F03-101-01

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

3-1

CHAPTER 3 MECHANICAL SYSTEMS

1.1.1 Removing the Front Cover

1) Open the feeder cover[1], and remove the 2 screws [2]; then, detach the front cover.

1.1.2 Removing the Rear Cover

1) Open the feeder cover, and remove the 2 screws [1]; then, detach the rear cover.

[2]

[1]

F03-101-02

[1]

1.1.3 Removing the Feeder Cover

1) Remove the front cover.

2) Remove the screw [1] and the positioning pin [2]; then, detach the feeder cover [3].

[1]

F03-101-03

[3]

[2]

3-2

[1]

F03-101-04

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

2 Pickup System

2.1 Separation Roller Unit

2.1.1 Removing the Separation Roller Unit

1) Remove the feeder cover.

2) Remove 4 screws [1]; then, detach the feeder cover inside cover [2].

[1]

CHAPTER 3 MECHANICAL SYSTEMS

[1]

3) Remove the two shutter [1].

4) Remove the resin E-ring [2]; then, while holding down the rear of the drive shaft, detach the separation roller unit [3].

[3]

[2]

F03-201-01

[1]

F03-201-02

Do not disassemble the separation roller unit any further. It must be replaced with all components as shown; any further assembly can deform the spring of the spring clutch.

F03-201-03

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

3-3

CHAPTER 3 MECHANICAL SYSTEMS

2.1.2 Mounting the Separation Roller Unit

1) Mount the separation roller unit [1].

[1]

F03-201-04

2) Mount the stopper arm [2] in the orientation indicated.

3) Mount the feeder cover inside cover.

[2]

F03-201-05

3-4

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 3 MECHANICAL SYSTEMS

2.2 Separation Pad

2.2.1 Removing the Pre-Separation Pad/Separation Pad

1) Open the feeder cover.

2) Remove the 2 screws [1], and detach the pre-separation pad [2] and the separation pad [3].

[1]

[3]

[2]

3) Slide the separation pad [3] to detach in the direction indicated. Take care not to lose the spring [4] attached to the bottom of the separation pad.

F03-202-01

[3]

[4]

F03-202-02

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

3-5

CHAPTER 3 MECHANICAL SYSTEMS

3 Drive System

3.1 Feeder Motor

3.1.1 Removing the Feeder Motor

1) Remove the rear cover.

2) Disconnect the connector [1].

3) Remove the tension spring [2].

4) Remove the 2 fixing screws [3], and detected feeder motor.

[1]

[2]

F03-301-01

[3]

3-6

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

3.2 Drive System

3.2.1 Removing the Feeder Unit

If you must replace the components of the feeder unit, replace the feeder unit as shown:

If you have removed the feeder

REF.

1) Remove the ADF from its host machine.

2) Remove the rear cover, front cover, and feeder cover.

3) Disconnect the 5 connectors [1], and remove the grounding fixing screw [2].

unit, you must adjust the gap L of the platen guide after mounting it back .(See p. 3-17.)

CHAPTER 3 MECHANICAL SYSTEMS

4) Remove the screw [4], and detach the original placement sensor [5]; then, detach the original pickup tray [6].

[1]

F03-302-01

[6]

F03-302-02

[2]

[4]

[5]

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

3-7

CHAPTER 3 MECHANICAL SYSTEMS

5) Remove the 8 screws [1].

6) Remove the 2 screws [2].

[A]

[1]

F03-302-03

When you install the feeder unit, tighten the 3 screws [A] at first, then tighten the other screws.

7) Remove the feeder unit.

If you try to remove the feeder unit without detaching the ADF from its host machine, the ADF will shift up. Keep this in mind.

[A]

[2]

F03-302-04

3-8

F03-302-05

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

3.2.2 Removing the Clutch

1) Remove the feeder unit.

2) Remove the 2-resin E-rings [1].

3) Shift the gear [2] toward the rear, and detach the parallel pin [3].

CHAPTER 3 MECHANICAL SYSTEMS

[1]

[3]

[2]

F03-302-06

4) Remove the clutch together with its shaft.

The machine’s clutch must be replaced together with its shaft; do not disassemble it any further.

When installing the clutch, match the stop assembly [1] agdinst the fixing plate [2].

[2]

[1]

F03-302-07

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

3-9

CHAPTER 3 MECHANICAL SYSTEMS

If you have removed the clutch from its shaft, go through the following when mounting it back: fit the spring [1] of the spring clutch into the opening in the clutch spring fixing plate [2], and match the stop assembly [3] against the fixing plate [4].

When securing the clutch in place with the grip ring [1], be sure to allow a gap of 0.2 mm between the grip ring and the clutch itself.

[2]

F03-302-08

[1]

[4]

[3]

0.2mm

[1]

F03-302-09

3-10

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 3 MECHANICAL SYSTEMS

[1]

[2]

3.2.3 Disassembling the Feeder Drive Assembly

1) Remove the feeder unit.

2) Remove the harness and the harness guide.

3) Remove the resin E-ring [1], and detach the pulley [2].

[2]

[1]

F03-302-10

4) Remove the 3 screws [1], and detach the feeder rear plate [2].

F03-302-11

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

3-11

CHAPTER 3 MECHANICAL SYSTEMS

3.2.4 Removing the Platen Roller

1) Remove the feeder unit.

2) Turn over the feeder unit, and remove the screw [1]; then, detach the platen guide R [2].

Do not remove the platen guide L [3].

3) Remove the resin E-ring [1] at the front; then, detach the pulley [2], belt [3], and bushing [4].

4) Remove the resin E-ring [5] at the rear, and detach the bushing [6].

[2]

[3]

[1]

F03-302-12

[4]

5) Remove the platen roller [1] as shown.

[1]

[5][6]

[3]

F03-302-13

[1]

3-12

F03-302-14

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

3.2.5 Removing the Feeder Roller

1) Remove the feeder unit.

2) Remove the platen guides L and R and the platen roller.

3) Remove the resin E-ring [1]; then, detach the pulley [2] and the bearing [3].

CHAPTER 3 MECHANICAL SYSTEMS

[3]

[2]

[1]

F03-302-15

4) Loosen the screw [1], and detach the spring [2] of the belt tensioner.

5) Remove the resin E-ring [1]; then, detach the pulley [2] and the bushing [3].

[1] [2]

F03-302-16

F03-302-17

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

[3]

[2]

[1]

3-13

CHAPTER 3 MECHANICAL SYSTEMS

5) Remove the resin E-ring [1], and detach the feeder roller as shown.

[1]

F03-302-18

3-14

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

3.2.6 Remove the Feeder Roller 2

1) Remove the feeder unit.

2) Remove the platen guides L and R, and remove the platen roller.

3) Remove resin E-ring [1]; then, detach the gear [2] and the bushing [3].

CHAPTER 3 MECHANICAL SYSTEMS

[1]

[3]

[2]

F03-302-19

4) Loosen the 2 screws [1], and detach the 2 springs [2] of the belt tensioner.

5) Remove the resin E-ring [1]; then, detach the pulley [2] and the busing [3].

6) Remove the feede roller 2.

[2]

[1]

F03-302-20

F03-302-21

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

[3]

[2]

[1]

3-15

CHAPTER 3 MECHANICAL SYSTEMS

[1]

[2]

3.2.7 Removing the Pull-Off Roller

1) Remove the feeder unit.

2) Remove the feeder motor.

3) Remove the feeder drive assembly.

4) Remove the platen roller, feeding roller 1, and feeding roller 2.

5) Remove the resin E-ring [1] and the bushing [2].

6) Remove the 2 resin E-rings [1]; then, detach the 2 pulleys [2], bushing [3], and parallel pin [4].

[1]

[2]

F03-302-22

7) Remove the 3 screws [1], and shift the plate [2] to the front.

8) Shift the pull-off roller to the front, and pull it off.

[1]

[2]

[3]

[4]

[2]

[1]

F03-302-23

3-16

F03-302-24

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

3.2.8 Adjusting the Platen Guide L

[1]

If you have removed the pickup unit or the platen guide L, be sure to adjust the gap between the platen guide L and the frame of the machine after mounting it back.

1) Open the ADF, and loosen the 2 fixing screws [1] of the platen guide.

CHAPTER 3 MECHANICAL SYSTEMS

F03-302-25

2) Fit a gap gauge (special tool; with a gap of 1.4 mm) [4] in the gap between the platen guide L [2] and the frame [3] of the machine; and tighten the 2 screws [1] while butting the gauge against the platen guide [4] as shown in the figure.

[1]

[2]

[3]

[4]

[2]

[3]

F03-302-26

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

[4]

3-17

CHAPTER 3 MECHANICAL SYSTEMS

4 Electrical Systems

4.1 ADF Driver PCB

4.1.1 Removing the ADF Driver PCB

1) Remove the rear cover.

2) Disconnect all connectors from the ADF driver PCB.

3) Remove the 2 screws [1], and detach the ADF driver PCB.

[1]

4.2 Sensors in the Feeder Unit

4.2.1 Removing the Sensor Unit

1) Remove the feeder unit.

2) Remove the platen guide R.

3) Remove the platen roller.

4) Remove the 2 screws [1], and detach the sensor unit [2].

[1]

F03-401-01

[2]

F03-402-01

[1]

3-18

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

4.2.2 Removing the Sensors

1) Disconnect the connector.

2) Remove the registration sensor [1] and the read sensor [2].

CHAPTER 3 MECHANICAL SYSTEMS

4.3 Sensors in the Original Pickup Tray

4.3.1 Removing the Original Width Sensor

1) Remove the front cover.

2) Raise the original pickup tray.

3) Remove the 3 screws [1], and detach the lower cover [2].

[2]

F03-402-02

[1]

F03-403-01

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

3-19

CHAPTER 3 MECHANICAL SYSTEMS

4) Remove the 2 screws [1], and detach the slide guide gear plate [2].

5) Remove the original width sensor 1 [3] and the original width sensor 2 [4].

4.3.2 Mounting the Slide Guide Gear Plate

1) Spread out the slide guide [1] fully.

2) Mount the slide guide gear plate while matching the top and bottom marking [2] of the gear and the [3] of the front/rear slide guide.

marking

[2]

[1]

F03-403-02

[3]

[4]

[2]

3-20

[1]

[3]

[2]

F03-403-03

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 4

MAINTENANCE AND INSPECTION

2001 CANON INC. 2001 2001 2001 2001 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 4 MAINTENANCE AND INSPECTION

1 Periodically Replaced Parts

The machine does not have parts that must be replaced on a periodical basis.

2 Durables and Consumables

The machine does not have parts that may require replacement because of wear or dam-

age once or more during the period of product warranty.

3 Scheduled Ser vicing Char t

The machine does not have parts that require periodical servicing.

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

4-1

CHAPTER 4 MAINTENANCE AND INSPECTION

4 Replacement

4.1 Replacing the Feed Roller Guide (dust-collecting tape)

1) Open the ADF.

2) Remove the 2 screws [1], and remove the feed roll guide [2].

3) Mount the new feed roll guide.

[2]

[1]

4.2 Replacing the Stamp

1) Open the ADF cover and the separation guide.

2) Using tweezes, remove the stamp.

3) Using tweezers, mount the new stamp. Be sure that the stamp is oriented so that the side with faces up.

F04-401-01

F04-402-01

4-2

Be sure to fit it until a click is heard; otherwise, jams can occur.

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 5

TROUBLESHOOTING

2001 CANON INC. 2001 2001 2001 2001 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 5 TROUBLESHOOTING

1 Standards and Adjustments

1.1 Basic Adjustments

Be sure to perform basic adjustments of the machine in the following order: [1] Height [2] Right angle [3] Read position [4] Ratio [5] Horizontal registration [6] Leading edge registration

1.1.1 Adjusting the Height

1) Check to see if the gap between the copyboard glass of the host machine and the copyboard stop assembly [1] on the pickup side is 0.1 ± 0.05 mm when the ADF is closed (approximately a single sheet of 64 g/m

paper may be inserted). At the same time, check also that the copyboard stop assembly [2] on the pickup front side is in contact with the copyboard glass. (Use a sheet of paper to check.)

t=0.1 0.05mm

[3]

[1]

[2]

[If Not As Indicated]

1) If one side is not in contact, turn the height adjusting bolt [3] on the left

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

F05-101-01

5-1

CHAPTER 5 TROUBLESHOOTING

hinge to make adjustments.

2) If the front side is not in contact, give the height adjusting plate [1] of the right hinge a 90º turn, and then adjust the left hinge.

[1]

• If the front is not in contact, tighten the adjusting screw.

• If the rear is not in contact, loosen the adjusting screw.

1.1.2 Adjusting the Right Angle

Check the angle between the scanner of the host machine and the direction of feed of the machine, and make adjustments as necessary.

1) Using A4 or LTR paper, prepare a test chart as shown.

F05-101-02

10mm

Right angle

10mm

5-2

F05-101-03

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

2) Place the test chart in the original tray, and make a Direct print.

3) Place the test chart over the output obtained in step 2), and check the angle of the image. A ≤ 1mm B ≤ 1mm

CHAPTER 5 TROUBLESHOOTING

Feed direction

Separate paper

Check the right angle by referring to the lines on the leading edge.

Output obtained in step 2

Feed direction

Separate paper

Output obtained in step 2)

F05-101-04

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

5-3

CHAPTER 5 TROUBLESHOOTING

[If Not As Indicated]

1) Loosen the locking nut [2] on the angle adjusting screw [1] found at the rear of the right hinge unit.

2) Turn the angle adjusting screw [1] to adjust the angle.

3) Tighten the locking nut [2] to secure it in place.

4) Make a print of the test chart once again to see that the image is as indicated.

[1]

[2]

F05-101-05

[3]

0.4 mm/interval

REF.

A marking [3] is provided on the right hinge assembly (bottom of the ADF); a shift over a single interval will cause a slant of about 0.4 mm in an image.

F05-101-06

5-4

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

1.1.3 Adjusting the Read P osition

Adjust the stream read position of the host machine in relation to the read position of the ADF .

1) Turn on the host machine, and press the User Mode key “ key in sequence in its control panel to start service mode.

2) Press the Arrow key in the control panel of the host machine so that “TEST MODE” is indicated.

3) Press the OK key.

4) Press “2” on the keypad so that “2. CCD TEST” is indicated.

5) Press ‘3’ on the keypad so that “CS POS ADJ (ADF)” is indicated. The scanner starts scanning operation; in about 5 sec, auto adjustment ends. If “OK” is indicated, end the work; if “NG” is indicated, repeat the foregoing steps.

” and then the “#”

CHAPTER 5 TROUBLESHOOTING

If auto adjustment fails, clean the platen roller of the ADF and the copyboard glass of the host machine; then, execute auto adjustment once again. If it still fails, suspect a fault in the host machine.

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

5-5

CHAPTER 5 TROUBLESHOOTING

1.1.4 Adjusting the Ratio Mechanism

Adjust the feed speed used to move originals, thereby adjusting the length of images in feed direction.

1) Using A4 or LTR paper, prepare a test chart as shown.

2) Place the test chart in the original tray, and make a Direct print.

3) Check to see if the distance A on the test chart and the distance B in the image obtained in step 2 ) are as follows: A ≤ 1mm B ≤ 1mm

Feed direction

Output obtained in step 2)

10mm

Right angle

10mm

F05-101-07

Test chart

10mm

[If Not As Indicated] Use service mode of the host machine to make adjustments:

1) Press the User Mode key “

” and the “#” key in the control panel in order to start service mode.

Feed direction

Output obtained in step 2)

F05-101-08

5-6

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

2) Operate as follows on the Service Mode screen:

• Using the Arrow key, select “#6 SCANNER”; then, press the OK key.

• Using the Arrow key, select “8. CCD”; then, press the OK key.

• Using the keypad, press “#032” or select “32” on the keypad.

3) Using the keypad, find the best value, and press the OK key. default : 16 unit : 0.1%

• If the image is too short, decrease the value (to slow down the movement of the original).

• If the image is too long, increase the value (to speed up the movement of the original).

4) Make a print of the test chart once again, and check to see that the image is as indicated.

CHAPTER 5 TROUBLESHOOTING

1.1.5 Adjusting the Horizontal Registration

Adjust the feed speed used to move originals, thereby adjusting the length of images in feed direction.

Correct the displacement in horizontal registration between original and copy paper in any of the following 2 ways:

• using service mode of the host machine

• moving the slide guide of the ADF pickup tray

1) Using A4 or LTR paper, prepare a test chart.

10mm

Right angle

10mm

F05-101-09

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

5-7

CHAPTER 5 TROUBLESHOOTING

2) Place the test chart in the original pickup tray , and make a Direct print.

3) Place the test chart over the output obtained in step 2), and check to see that the following is true: A ≤ 1mm B ≤ 1mm

Output obtained in step 2)

Feed direction

Test chart

Output obtained in step 2)

Feed direction

Test chart

[If Not As Indicated]

a.Using Service Mode of the Host Machine

1) Press the User Mode key “

” and the “#” key in the control panel to start service mode.

2) Operate as follows on the Service Mode screen:

• Using the Arrow key, select “#6 SCANNER”; then, press the OK key.

• Using the Arrow key, select “8. CCD”; then, press the OK key.

• Using the keypad, press “#022”; or, using the Arrow key, select “22”.

F05-101-10

10mm

Right angle

10mm

F05-101-11

10mm

5-8

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 5 TROUBLESHOOTING

3) Using the keypad, select the best value; then, press the OK key.

default : 128 unit : 0.1mm

• If the image is displaced to the front, increase the value.

• If the image is displaced to the rear, decrease the value.

4) Make a print of the chart, and check to see that the image is as indicated.

b. Adjusting the position of the Side Guide of the ADF Pickup Tray

1) Remove the 3 mounting screws [1], and detach the lower cover [2].

[2]

[1]

2) Loosen the mounting screw [1], and remove the screw [2] from the positioning hole side; then, fit it into the adjusting angle hole [3] lightly.

3) Shift the slide guide gear holder [4] to the front or the rear to make adjustments.

4) Tighten the screw [1] and the screw [2] fitted to the adjusting angle holder [3].

5) Thereafter, mount the cover.

6) Make a print of the test chart once again to see that the image is as indicated.

[1]

F05-101-12

[1]

[4]

[2]

[3]

F05-101-13

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

5-9

CHAPTER 5 TROUBLESHOOTING

1.1.6 Adjusting the Leading Edge Registration

Correct the displacement of images in feed direction as follows:

1) Prepare a test chart using A4 or LTR paper as shown:

10mm

2) Place the test chart on the original tray, and make a Direct print.

3) Check to make sure that the dimension A of the test chart is indicated as follows in the output obtained in step 2): A ≤ 1mm B ≤ 1mm

Right angle

F05-101-14

Feed direction

Output obtained in step 2)

10mm

Test chart

5-10

Feed direction

Output obtained in step 2)

F05-101-15

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

[If Not As Indicated]

Use service mode of the host machine.

1) Press the User Mode key “

” and then the “#” key in sequence to start service mode.

2) On the Service Mode screen, operate as follows:

• Using the Arrow keys, select “#6 SCANNER”; then, press the OK key.

• Using the Arrow keys, select “8. CCD”; then, press the OK key.

• Using the keypad, press “024”; or, using the Arrow keys, select “24”.

3) Vary the value on the keypad to obtain the best value; then, press the OK key. default : 230 unit : 0.4 mm

• If the image is displaced to the left, decrease the value.

• If the image is displaced to the right, increase the value.

4) Make a print of the test chart once again to see that the image is as indicated.

CHAPTER 5 TROUBLESHOOTING

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

5-11

CHAPTER 5 TROUBLESHOOTING

2 Troubleshooting Malfunctions

2.1 Troubleshooting Malfunctions

2.1.1 Pickup Fault

Motor, Clutch

1) Does the pickup roller rotate normally at time of pickup?

NO: Repair or replace the motor, clutch, drive gear, spring clutch, or the

like.

Pickup roller unit

2) Does the pickup roller rotate normally at time of pickup?

NO: Replace the separation roller unit. (see p. 3-3.)

Separation pad

3) Is the separation pad or the pre-separation pad appreciably soiled or worn?

YES: Clean or replace it. (see p. 3-5.)

Pickup roller unit

4) Is the pickup roller unit appreciably soiled?

YES: Clean the pickup roller unit. NO: Replace the pickup roller unit.

2.1.2 The output has black lines in sub scanning direction.

ADF read glass

1) Is there dust on the reading glass?

YES: Clean the read glass as instructed. (see p. 1-5.)

Separation PE sheet/separation guide

2-1) Is the separation PE sheet [1] appreciably soiled?

YES: Clean the separation PE sheet [1].

2-2) Is there a buildup of paper lint or toner on the separation guide?

YES: Clean the separation guide.

[1]

5-12

F05-201-01

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 5 TROUBLESHOOTING

Feeding roll guide

3) Is there a buildup of paper on the feeding roll guide?

YES: Replace the feeding roll guide. (See p. 4-2.)

Sharpness setting

4) Does the fault still occurs on a periodical basis even after going through the foregoing?

YES: Change the sharpness setting to the lower level.

Caution: Setting the level to ‘weak’ can lead to deteriorated output im-

ages in sheet or book read mode. Be sure to obtain the user’s consent before changing the setting.

[Changing the Sharpness Setting in User Mode]

1) Turn on the host machine, and press the User Mode key “

2) Press [02 copy settings].

”.

3) Press the OK key.

4) Press [08 sharpness].

5) Press the OK key.

6) Press ‘weaker’ to decrease the sharpness. * At time of shipment, the setting is in the middle of the 9-setting index.

7) Press the OK key.

8) Press the Stop key or the Reset key to return to normal mode.

9) Make a copy, and check the output. If the correction is not good enough, select a still lower level of sharpness.

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

5-13

CHAPTER 5 TROUBLESHOOTING

2.1.3 The output has blurred images.

Platen guide L

1) Is the gap of the platen guide L correct?

NO: Correct the gap. (See p. 3-17.)

Feeding roller

2) Are the spring pressure of the feeding roller 1/2 and the pull-off roller correct?

NO: Correct the spring pressure.

2.1.4 The output is out of focus or has black fogging.

ADF

1) Is the height of the ADF correct?

NO: Correct the height. (See p. 5-1.)

Platen roller

2) Does the platen roller correctly come into contact with the glass surface when the ADF is closed?

NO: Make adjustments so that the roller will come correctly in contact.

5-14

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 5 TROUBLESHOOTING

3 Arrangement of Electrical Components

3.1 Sensors

PI3

PI2

PI4

PI7

PI9

PI8

PI6

PI5

PI1

F05-301-01

Symbol Name Notation Description

Photointerrupters PI1 Last original detection sensor

PI2 Length sensor 1 PI3 Length sensor 2 PI4 Original width sensor 1 PI5 Original width sensor 2 PI6 Original placement sensor PI7 Registration sensor PI8 Read sensor PI9 Feeder cover open/closed sensor

T05-301-01

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

5-15

CHAPTER 5 TROUBLESHOOTING

3.2 Motors, Clutches, Solenoids, PCBs, and Others

CL1

PCB1

PCB2

SL1

F05-302-01

Symbol Name Notation Description

Motor M1 Feed motor

5-16

Solenoid SL1 Stamp solenoid

Cultch CL1 Pickup clutch

ADF drier PCB PCB1 ADF drive

Relay PCB PCB2 Relay for sensor inside original

pickup tray

T05-302-01

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

CHAPTER 5 TROUBLESHOOTING

4 Self Diagnosis

4.1 Outline

The machine does not have a controller PCB, and depends on the controller PCB of its host machine for diagnosis. The checks are limited to jams, and do not look for alarm or error conditions. For discussions of jams, see 3 “Jams” in Chapter 2 (p. 2-21).

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

5-17

APPENDIX

2001 CANON INC. 2001 2001 2001 2001 CANON ADF-J1 REV.0 SEPT. 2001

1 General Timing Charts

1.1 Flow-Scanning a Single-sided A4 Document

Start key ONOriginal set

Feed motor (M1) Pickup clutch (CL1)

Original placement sensor (PI6)

Registration sensor (PI7)

Read sensor (PI8) Pickup roller Separation roller Other rollers

Original separated/

moved

: motor, roller in reverse.

Note 1: The speed increases when the paper is pulled by the pull-off roller.

1st original read 2nd original read Original delivered

Note 1 Note 1

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

A-1

APPENDIX

2 Signal Name/Designation List

Definitions of the signal names and other designations used in this chapter and in the block diagrams are listed below.

Note: Designations in brackets denote an electrical signal, or an analog signal whose state cannot be represented as a 0 or 1. Other designations denote a digital signal whose state can be represented as a 0 or 1.

DFCVS Feeder Cover Open/Closed Detection signal SET Document Set Detection signal LENG1 Last original detection signal LENG2 Document Length Detection signal 1 LENG3 Document Length Detection signal 2 MOTA Feed Motor Drive signal MOTA* Feed Motor Drive signal MOTB Feed Motor Drive signal MOTB* Feed Motor Drive signal READ Read Original Document signal REG Separated Paper Detection signal STAMP_SL Stamp Solenoid Drive signal WID1 Original Width Detection signal 1 WID2 Original Width Detection signal 2

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

A-3

3 General Block Diagram

Stamp solenoid

SL1

Pickup clutch

CL1

Original placement

sensor

PI6

Registration

sensor

PI7

Read sensor

PI8

Cover open/closed

sensor

PI9

1 2

J201

J26

3 2 1

J27

3 2 1

J28

3 2 1

J31

3 2 1

1 2

J30

J13

2 1

+24V STAMP_SL

ADF drive PCB

+24V(P) +24V(P) MOT A MOT A* MOT B

+24V

MOT B*

+3.3VS

SGND

4 5 6 7 8

9 10 11 12

4 5 6 7 8

9 10 11 12

J11

SET +3.3VE SGND REG +3.3VE SGND READ +3.3VE SGND DFCVS

SGND

+3.3VE

+3.3VS

SGND

+5V

SGND

DFCVS

SET

REG

WID2

WID1

N.C.CLSTAMP_SL

B15 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1

A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15

B15 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1

A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15

B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 B15

A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1

MBPWM

MAPWM

PHXB

PHB

PHXA

PHA

READ

N.C.

LENG3

LENG2

LENG1

SGND

+3.3VE

SGND

LENG1

LENG2 LENG3

PGND

+24V

4321 4321

4321

Host machine

WID1 WID2

+24V

J12

J102

J101

+3.3VE

SGND

LENG1

+3.3VE

SGND

LENG2

+3.3VE

SGND

LENG3

+3.3VE

SGND

WID1

3.3VE SGND

WID2

Junction PCB

1 2 3 4 5 6

Feed motor

Last original detection

J21

sensor

PI1

2 1

J22

Length sensor 1

PI2

2 1

J23

Length sensor 2

PI3

2 1

Original width

J24

sensor 1

3 2

PI4

Original width

J25

sensor 2

3 2

PI5

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

A-5

4 ADF Controller Block Diagram

ADF Controller Block Diagram (1/4) A501

A15

A14

A13

A12

B4 PHXA

A11 PHB

B5 PHXB

A10 MAPWM

B6 MBPWM

WID1

WID2A7

LENG_1

LENG_2

LENG_3

PHA

R10

B11

B12

B13

B14

B15

+24V

FU2

R28

R34

+3.3V

R31

R32

R30

R33

R29

R25

R27

R26

STAMP SL

SET

C14

REG

C20

J1-A9

J1-B7

J1-A6

J1-B9

PHXA

C25

R42

+5V

R41

R13

J6J1

+5V

C23

J7 J7 J7

J8 J8 J8 J8

2 3

1 2 3 4

+3.3V

C11

C12

R37

+3.3V

PHB

R35

R36

READ

C21

J1-B3

MAPWM

+3.3V

R40

+3.3V

R38

R39

DFCVS

C22

J1-B10

R12

C17

C26

C10

R20

R21

+3.3V

C16

IC1

OUTA

REFA

IN_A

VSA

OUTB

SYNCB

GNDB

INB

+3.3V

SYNCA

GNDA

INA

OUT_A

RSB

VSB

REFB

IN_B

OUT_B

C13 C2

+5V

R18

R11

R17

+3.3V

C18 C19

PHA

C24

R24 R23

+24V

R22

FU1

C27

MBPWM

PHXB

A-6

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

5 Jam Code List

No. Jam Code Explanation

1 0001 Pickup fault 2 0003 Delay jam 3 0004 Stationary jam 4 0007 Sheet-to-sheet gap jam 5 0009 ADF open jam 6 000a Feeder cover open jam 7 000b Stationary jam at power-on 8 0011 No paper (forced out original) 9 0012 Jam in response to Stop key 10 0012 Initialization jam 11 0016 Others

APPENDIX

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

A-7

APPENDIX

6 Special Tools List

The table below lists the special tools, other than those included in the standard tool set,

that are required for servicing this machine.

NO.

Tool Name

Digital multimeter FY9-2002-000 A Electrical checking,

Gauge (1.4 mm gap)

HY9-0015-000 A Platen guide L gap

Shape Rank Use/RemarksTool No.

etc.

adjustment

HY9-0015

Note: Ranks A: Each service engineer should be equipped with one unit of this tool. B: One unit of this tool need be maintained for each group of five or so. C: One unit of this tool need be maintained in each workshop.

7 Solvent/Grease List

No.

12BYUKKURIN C-17

Name Use Formulation Remarks

Cleaning Examples:

Glass, plastic materials, rubber, exterior covers

Lubricant

Driving and sliding parts

Hydrofluorocarbon Alcohols Surfactant Water

Silicone oil

- Keep away from fire.

- To be adjusted in the field.

- Substitute: IPA (Isopropyl alcohol)

- PERMALB G2

- Tool No. CK-0551 (20g)

A-8

2001 CANON INC. 2000 2000 2000 2000 CANON ADF-J1 REV.0 SEPT. 2001

Prepared by

Office Imaging Products Technical Support Division

Office Imaging Products Quality Assurance Center

CANON INC.

Printed in Japan

REVISION 0 (SEPT. 2001) (25089)

5-1, Hakusan 7-chome, Toride-shi, Ibaraki 302-8501 Japan

This publication is printed on 100% reprocessed paper.

PRINTED IN JAPAN (IMPRIME AU JAPON) 0901GR0.0-1

Canon iR1600, iR2000 Service Manual adf j1

Specifications and Main Features

Frequently Asked Questions

User Manual

CONTENTS

CHAPTER 1

1 Features

2 Specifications

3 Names of Components

4.Using the Machine

CHAPTER 2

1 Basic Constr uction

2.Basic Operations

3 Jams

4 Power Supply

CHAPTER 3

1 Basic Construction

2 Pickup System

3 Drive System

4 Electrical Systems

CHAPTER 4

1 Periodically Replaced Parts

2 Durables and Consumables

3 Scheduled Ser vicing Char t

4 Replacement

CHAPTER 5

1 Standards and Adjustments

2 Troubleshooting Malfunctions

3 Arrangement of Electrical Components

4 Self Diagnosis

APPENDIX

1 General Timing Charts

2 Signal Name/Designation List

3 General Block Diagram

4 ADF Controller Block Diagram

5 Jam Code List

6 Special Tools List

7 Solvent/Grease List