Canon DU7-1101-000, imageRUNNER 600 Service Manual

ADF FOR

imageRUNNER 600

SERVICE MANUAL

REVISION 0

JAN. 1999

DU7-1101-000

IMPORTANT

THE INFORMATION CONTAINED HEREIN IS PUBLISHED BY CANON, INC., JAPAN. SPECIFICATIONS AND OTHER INFORMATION CONTAINED HEREIN MAY DIFFER SLIGHTLY FROM ACTUAL MACHINE VALUES OR THOSE FOUND IN ADVERTISING AND OTHER PRINTED MATTER.

ANY QUESTIONS REGARDING INFORMATION CONTAINED HEREIN SHOULD BE DIRECTED TO THE COPIER SERVICE DEPARTMENT OF THE COMPANY.

Printed in Japan

Imprimé au Japon

Use of this manual should be strictly

supervised to avoid disclosure of confi-

dential information.

Prepared by

OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIVISION

CANON INC.

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

INTRODUCTION

This Service Manual contains basic data and figures on the ADF for the iR600 needed

to service the machine in the field.

CHAPTER 1 General Description introduces the ADF's features and specifications,

and shows how to operate the ADF.

CHAPTER 2 Basic Operation provides outlines of the ADF's various mechanical workings, and explains the principles used for the ADF's various control mechanisms in view of the functions of electrical and mechanical units and in relation to their timing of operation.

CHAPTER 3 Mechanical System shows how the ADF's various mechanical workings are constructed, and how the ADF may be disassembled/assembled and adjusted.

CHAPTER 4 Maintenance and Servicing provides tables of periodically replaced parts and consumables/durables and scheduled servicing charts.

CHAPTER 5 Troubleshooting provides tables of maintenance/inspection, standards/ adjustments, and problem identification (image fault/malfunction).

APPENDIX contains a general timing chart and general circuit diagrams.

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.

i

GENERAL DESCRIPTION

I . FEATURES .................................. 1-1

II . SPECIFICATIONS....................... 1-2

A. ADF for iR600........................ 1-2

III . NAMES OF PARTS ....................1-4

A. External View ........................ 1-4

B. Cross Section ........................ 1-5

IV . OPERATION .............................. 1-6

A. Original Set Indicator .............1-6

B. Warnings and Actions to Take

.............................................. 1-6

C. Routine Maintenance by the User

.............................................. 1-7

CHAPTER 1 GENERAL DESCRIPTION

I . FEATURES

1. First Page First

The machine helps increase its host copier's productivity (if the copier possesses a reversing mecha-

nism).

2. Pre-Reversing Mechanism

The machine's pre-reversing mechanism adds to productivity when processing double-sided origi-

nals.

3. Clip-On Feeding Belt Unit

Compared with the exiting models, the machine's feeding belt can be removed much more easily,

facilitating servicing work.

4. Stream Reading of All Sizes

The machine may use stream reading for all sizes (including large size) of originals (for reproduction

ratios between 50% and 150%).

1-1

CHAPTER 1 GENERAL DESCRIPTION

II . SPECIFICATIONS

A. ADF for imageRUNNER 600

Item

Pickup

Original placement

Original position

Original separation

Original type

Original size

Original tray

Original delivery tray

Original processing

Stream reading

Manual feed

Original size identification

Residual paper detection

Size mixing

Book original

Specifications

Auto pickup/delivery

Original tray: face up Manual feeder: face down

Original tray: center Manual feeder: rear stop

Top separation

Sheet Original tray: 50 to 200 g/m Manual feeder: 38 to 200 g/m

2

A5 to A3/STMT to 279.4×431.8mm (11"×17")

Small size: 100 sheets A5, A4, B5, STMT, LTR, A4R, B5R, LTRR

Large size: 50 sheets A3, B4, LGL, 279.4×431.8 mm (11"×17")

Small size: 100 sheets A5, A4, B5, STMT, LTR, A4R, B5R, LTRR

Large size: 50 sheets A3, B4, LGL, 279.4×431.8 mm (11"×17")

Single-sided, double-sided

Provided (all sizes; single-sided, between 50% and 150%)

Provided (single sheet only)

Provided (default sizes only)

Provided

Provided (same feeding width only)

Supported (40 mm or less in thickness)

Remarks

However, 163 g/m2 if largesize, double-sided copies.

For paper of 80 g/m2 or less.

1-2

Table 1-202-1

CHAPTER 1 GENERAL DESCRIPTION

Item

Communication with copier

Power supply

Weight

Dimensions

Serial No.

Operating environment

Temperature range Humidity range

The above specifications are subject to change for product improvement.

Specifications

IPC communication 2

24 VDC (from copier)

21 kg (approx.)

646 (W) × 569.5 (D) × 143 (H) mm

A: ZRBxxxxx Inch/A: ZRCxxxxx AB: ZRDxxxxx Inch/AB: ZRExxxxx

Same as copier.

Table 1-202-2

Remarks

Not including delivery tray.

1-3

CHAPTER 1 GENERAL DESCRIPTION

III . NAMES OF PARTS

A. External View

[3]

[2]

[1]

[4]

[5]

[6]

[1] Upper cover [2] Side guide [3] ADF controller cover

1-4

[4] Manual tray [5] Upper front cover [6] Lower front cover

Figure 1-301

B. Cross Section

CHAPTER 1 GENERAL DESCRIPTION

[1][2] [3] [4][5][6][7] [8] [9]

[18]

[19][20][21][23] [22]

[1] Reversing roller B roll [2] Reversing roller B [3] Reversing flapper [4] Registration locking roller [5] Registration roller [6] Pull-out roller [7] Pull out locking roller [8] Feeding roller [9] Pickup roller [10] Manual feed registration roller [11] Manual feed stopper plate [12] Delivery roller A roll

[17]

[16]

[13]Delivery roller B roll [14]Delivery roller [15]Delivery jumping flapper [16]Feeding belt [17]Stopper plate [18]Separation belt [19]Feeding belt drive roller [20]Jumping flapper [21]Pre-reversal flapper [22]Reversing roller A [23]Reversing roller A roll

[10][11][12]

[15] [14][13]

Figure 1-302

1-5

CHAPTER 1 GENERAL DESCRIPTION

IV . OPERATION

A. Original Set Indicator

The Original Set indicator turns on when an original is placed on the original tray, and flashes when an

original jams.

Original Set indicator

Figure 1-401

B. Warnings and Actions to Take

Suspect a jam if the Original Set indicator starts to flash while an original is being fed. Perform the

following steps for correction:

1) Remove all originals from the original tray.

2) Open the upper cover, and remove the jam, if any.

3) Open the ADF, and remove the original, if any, from the copyboard.

4) Put the originals in correct order, and set the stack in the ADF.

1-6

C. Routine Maintenance by the User

Instruct the user to clean the following parts at least once a week.

CHAPTER 1 GENERAL DESCRIPTION

Parts

Copyboard glass Feeding belt Registration roller

Description

Wipe it with a cloth moistened with water or alcohol; then, dry wipe it. Wipe it with a cloth moistened with water or alcohol; then, dry wipe it. Execute the copier's user mode.

Table 1-401

1-7

CHAPTER 2

Operations

1. In outline diagrams, and

2. Signals in digital circuits are identified as '1' for High and '0' for Low. The voltage of signals, however depends on the circuit.

Nearly all operations of the machine are contorolled by the CPU; the internal

workings of the CPU are not relevant to the service person's work and, therefore, are left out of the discussions. By the same token, no repairs are prescribed for the PCBs at the user's premises; for this reason, PCBs are discussed by means of block diagrams rather than circuit diagrams.

For the purpose of explanation, discussions are divided into the following: from

sensors to ADF controller PCB input ports; from ADF controller output ports to loads; and minor control circuits and functions.

indicates electrical signal paths.

represents mechanical drive paths,

I . BASIC CONSTRUCTION............. 2-1

A. Electrical Circuitry ................. 2-1

B. Communication with the Copier

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

C. Inputs to the ADF Controller PCB

.............................................. 2-2

D. Outputs from the ADF Controller

PCB....................................... 2-4

II . BASIC OPERATIONS ................. 2-5

A. Outline ................................... 2-5

B. Operations ............................. 2-8

C. Detecting an Original........... 2-14

D. Original Pickup/Separation.. 2-24 E. Feeding/Delivering Originals

............................................ 2-34

F. CW Rotation Pickup/Delivery

............................................ 2-37

G. Pre-Reversal Pickup/Delivery

............................................ 2-55

H. Reversal Pickup/Delivery .... 2-61

I. Manual Feeder Pickup/Delivery

............................................ 2-69

III . DETECTING JAMS .................. 2-72

IV . POWER SUPPLY .................... 2-79

CHAPTER 2 OPERATIONS

I . BASIC CONSTRUCTION

A. Electrical Circuitry

The machine's electrical mechanisms are controlled by the ADF controller PCB. The CPU on the ADF controller PCB interprets input signals from the machine's sensors and the host copier, and generates signals to drive the motors, solenoids, and other DC loads.

ADF controller PCB

ROM (IC1)

EEPROM

(IC2) RAM

(Q4)

D/A

(Q9)

IPC

(Q2)

CPU (Q1)

+5V+24R

5 VDC power supply (Q28)

Power supply PCB

Motor

Sensor

Solenoid

Clutch

Original indicator LD PCB

Tray PCB

Reversal motor driver PCB

Belt motor driver PCB

Motor

Copier

Figure 2-101

B. Communication with the Copier

The machine communicates using IPC communication 2, which enables communication at a higher speed than the existing IPC methods.

Related Error Code

E422 E712

A fault has occurred in the communication with the copier.

2-1

CHAPTER 2 OPERATIONS

C. Inputs to the ADF Controller PCB

Inputs to the ADF Controller PCB (1/2)

Belt motor clock sensor

Separation motor clock sensor

Left cover sensor (rear)

Pre-reversal sensor

Registration roller clock sensor

Left cover sensor (front)

Pickup roller home position sensor

Pickup roller height sensor 1

Pickup roller height sensor 2

ADF open/closed sensor

Delivery motor clock sensor

Manual feed sensor

Original delivery sensor

PI 1

PI 2

PI 3

PI 4

PI 5

PI 6

PI 7

PI 8

PI 9

PI 10

PI 11

PI 12

PI 13

J141

-1

-9

-3

-7

-2

-8

-4

-6

-4

-5

-3

-7

-1

-9

-2

-8

J21J23

-5

-3

-5

-1

-7

-2

-6

-10

-8

-3

-4

-9

J12-1

J12-6

J12-7

J12-10

-12

-11

J14-B8

-B10

-B9

J14-B5

-B7

-B6

J14-A3

-A5

-A4

J14-A6

-A8

-A7

J14-A9

-A11

-A10

J12-13

-15

-14

J3-3

J2-8

-10

J2-13

-15

-14

ADF controller PCB

+5V

-3

-2

-5

-4

-9

-8

-2

-1

-9

BTCLK

SPCLK

LCVR

PRTR

TRCLK

LCVF

PKHP

PKH1

PKH2

RFOP

EJCLK

MFST

EJJAM

Pulses according to the speed of the belt

+5V

motor. Pulses according to

the speed of the

+5V

separation motor. When the left cover is

closed, '1'.

+5V

When paper is present, '1'.

+5V

Pulses according to the speed of the

+5V

registration roller. When the left cover is

closed, '1'.

+5V

When the pickup roller is in the home

+5V

position, '1'. When the pickup roller

is on paper, '1'.

+5V

When the pickup roller is on paper, '1'.

+5V

When the ADF is closed, '1'.

+5V

Pulses according to the speed of the

+5V

delivery motor. When paper is

present, '1'.

+5V

When paper is present, '1'.

2-2

Figure 2-102

Inputs to the ADF Controller PCB (2/2)

+5V

Reversal sensor

Pre-registration paper sensor

Post-registration paper sensor

Separation sensor

Skew sensor

Original sensor (light-receiving)

Original sensor (light-emitting)

Original trailing edge sensor

Copy paper

Pre-last original paper sensor

S1

S2

S3

S4

S5

S6

S7

J52-2 -3 -1 J56-2 -1 -3

S8

Comparator

-2

-1

-2

-1

circuit

+5V

circuit

+5V

circuit

Tray PCB

-4

-1

-2

-3

-6

-1

-6

-2

-5

-3

-4

-3

-5

-2

-1

-6

-5

-4

-3

-2

Original width detecting switch

SW301

CHAPTER 2 OPERATIONS

ADF controller PCB

+5V

-4

-1

-4

-2

-3

-2 J144J149

J14-B1

-B4

-B3

-B2

TNSAJ TNS

Paper reference signal When paper is present, '0'.

+5V

-1

-6

-3

-6

-5

-4

-5

-3

RGBSAJ

-4

RGBS

Paper reference signal When paper is present,

J13-8

-1

-8

'0'.

-4

-5

-4

-3

-6

-3

-2

-7

-2

J133 J132J135

-5

RGASAJ

-6

RGAS

-2

Paper reference signal When paper is present, '0'.

+5V

-1

-6

-1

-5

-2

J13-14

-10

-9

SPSAJ SPS

Paper reference signal When paper is present, '0'.

-3

-4

-5

-1

-7

-1

-2

+5V

-4

-3

-2

J131J134

-8

-2

J132J136

-3

-2

J140J145

-2

-5

-4

-7

-6

-3

-13

-9

-10

-11

-12

-8

J51

-11

-12

-13

J13-2

J14-A1

-A2

J5-12

-10

-11

J51-1

SKSAJ SKS

DTS

-1

DTSAJ

-9

TAILSAJ TAILS

-7

LASAJ

-8

LAS

-5

SSW-0

-4

SSW-1

-3

SSW-2

-2

SSW-3

-6

SSW-4

+5V

Paper reference signal When paper is present, '0'.

When paper is present, '0'.

Paper reference signal

Paper reference signal When paper is present, '0'. Paper reference signal When paper is present, '0'.

Signal according to paper width. (For details, see p. 2-17.)

Copy paper

Manual feeder registration roller paper sensor

S9

+5V

-9

-1

-4

-1

-3

-2

-3

-4

-7

-6

-7

-4

-7

-6

-5

-8

-5

-6

J23 J21J25

J2-4

-7

-6

-5

+5V

MFRGSAJ MFRGS

Paper reference signal When paper is present, '0'.

Figure 2-103

2-3

CHAPTER 2 OPERATIONS

D. Outputs from the ADF Controller PCB

Outputs from the ADF Controller PCB (1/1)

+24V

-12

-11

-10

-9

-8

-9

J10-3

J9-1

J9-3

J10-1

J2-1

J6-8~10

J7-9~11

J11-1

-4

CLD

+24V

-2

SL1D

+24V

-4

SL2D1

-5

SL2D2*

+24V

-2

SL3D

+24V

-2

SL4D1

-3

SL4D2*

+24V

-1

-2

M1OB*

-3

M1OA*

-4

M1OB

-5

M1OA

-6

T-Vref

+24V

-6

-1

REF-CLK

-2

MO1

-3

MO2

-4

CW/CCW

-5

B-Vref

+24V

-2

-3

M3OB

-4

M3OA*

-5

M3OB

-6

M3OA

Separation clutch

Reversing solenoid

Stopper plate solenoid (2 positions)

Pre-reversing solenoid

Delivery solenoid (2 positions)

Reversal motor

Belt motor

Pickup motor

M1

M2

M3

CL

SL1

SL2

SL3

SL4

+24V +24V

-2

-1

-2 J102

-2

-1

-2 J91

-3

-1

-2

-1

-3 J92

-2

-1

-2

J101

-3

-1

-2

-1

-3

-1

-2

-3

A

-4

A

*

-5

B

-6

B

*

J602

-1

-2

-3

A

-4

A

*

-5

B

-6

B

*

J72

-1

-6

-2

-5

-3

-4

-3

-5

-2

-6

-1

J111

-1

-2

-3 J21J22

-4~6

-13

-12

-11

-10

Reversal motor

driver PCB

J601

-4~6

-14

-13

-12

-11

Belt motor

driver PCB

-10

J71

Figure 2-104

ADF controller PCB

When '0', the

*

separation clutch turns on.

When '0', the solenoid

*

turns on. When '0', solenoid

*

turns on (position 1).

When '0', the solenoid turns on (position 2).

When '0', the solenoid

*

turns on. When '0', the solenoid

*

turns on (position 1) When '0', the solenoid

turns on (position 2).

+5V

For details, see p. 2-65.

+5V

For details, see p 2-35.

*

For details, see p. 2-31.

Separation motor

Delivery motor

2-4

M4

-2

-1

J81

J8-1

-2

SEPM+ SEPM-

For details, see p. 2-32.

+24V

M5

-2

-1

-2 J24

-11

-12 J21

-2

-12

-1

EJMD

For details, see p. 2-36.

*

J2-11

Figure 2-104

CHAPTER 2 OPERATIONS

II . BASIC OPERATIONS

A. Outline

The machine uses five motors and one clutch for picking up, separating, feeding, and delivering

originals.

Name (notation)

Reversal motor (M1)

Belt motor (M2)

Pickup motor (M3)

Separation motor (M4)

Delivery motor (M5)

Separation clutch (CL)

Function

Moves or reverses originals.

Moves originals.

Moves up/down the pickup roller.

Separates originals.

Delivers originals or picks up manually fed originals.

Disengages or engages the pull-out roller and separation/feeding assembly drive system.

Table 2-201

2-5

CHAPTER 2 OPERATIONS

Pre-reversing solenoid drive signal (SL1D)

Separation motor drive signal

Separation clutch drive signal (CLD)

Separation motor clock signal (SPCLK)

ADF controller PCB

Stopper plate solenoid drive signal 2 (SL2D2)

Stopper plate solenoid drive signal 1 (SL2D1)

Pickup motor drive signal

Belt motor drive signal

Belt motor clock signal (BTCLK)

Reversal motor drive signal

Reversing solenoid drive signal (SL3D)

Registration roller clock signal (TRCLK)

Delivery solenoid drive signal 1 (SL4D1)

Delivery solenoid drive signal 2 (SL4D2)

Delivery motor drive signal

Delivery motor clock signal (EJCLK)

SL1

M4

SL3

PI 2

PI 5

CL

SL2

M3

M2

PI 1

M1

Figure 2-201 Drive Diagram

SL4

M5

PI 11

2-6

ADF controller PCB

CHAPTER 2 OPERATIONS

Pre-reversal detection signal (PRTR)

Reversal paper detection signal (TNS)

PI4

Post-registration roller paper detection signal (RGAS)

S1

Separation paper detection signal (SPS) / skew paper

detection signal (SKS)

Pre-registration roller paper detection signal (RGBS)

S4,S5

S2

S3

Pickup roller home position signal (PKHP)

Pickup roller height 1 signal/2 signal (PKH1/ PKH2)

PI6 PI3

PI8,

PI7

PI9

S6 (light-receiving)

Left cover rear signal (LCVR)

Original sensor light emit signal (DTSAJ)

Left cover front signal (LCVF)

S6 (light-emitting)

Original detection signal (DTS)

S8

Original set indicator light emit signal (DTLED)

Pre-last original detection signal (LAS)

S7

SW301

Figure 2-202 Sensor Arrangement

Original width detection signal (SSW _*)

Original trailing edge detection signal (TAILS)

ADF open/closed detection signal (RFOP)

PI10

Manual feeding registration paper detection

signal (MFRGS)

Manual feed set signal (MFST)

Original delivery paper detection signal (EJJAM)

PI12

S9

PI13

2-7

CHAPTER 2 OPERATIONS

B. Operations

1. Outline

The machine operates in either of three modes, executed in response to instructions from the copier for various copying operations. Table 2-202 shows these modes and explains the operations in each mode in relation to the mode's corresponding copying mode.

Operating mode

CW rotation/delivery

Pre-reversal pickup, reversal, delivery (small-size original)

Manual feeding feeder pickup/delivery

2. CWW Pickup/Delivery

An original moves as follows:

Outline

Picks up an original, and delivers it as it is after copying.

Reverses and picks up an original, and reverses once again and delivers after copying.

Picks up an original from the pickup assembly, and delivers it after copying.

Table 2-202

Corresponding

copying mode

Single-sided original à single-sided copy Single-sided original à double-sided copy

Double-sided original à double-sided copy Double-sided original à single-sided copy

Manual copying

Copying operation

Stream reading (fixed reading if ratio is not between 50% and 150%)

Fixed reading

2-8

Pickup

Original

Copying

Delivery

Figure 2-203

CHAPTER 2 OPERATIONS

3. Pre-Reversal Pickup, Reversal, Delivery (small-size original)

An original moves as follows:

Pickup

Original

Pre-reversal

Feeding

Copying 1st side

Feeding

To next page.

Figure 2-204-1

2-9

CHAPTER 2 OPERATIONS

Reversal

Copying 2nd side

From previous page.

Delivery

Figure 2-204-2

2-10

CHAPTER 2 OPERATIONS

4. Reversal Pickup, Reversal, Delivery (large-size original)

An original moves as follows:

Pickup

Feeding

Reversal feeding 1

Reversal feeding 2

Copying 1st side

To next page.

Figure 2-205

2-11

CHAPTER 2 OPERATIONS

Reversal feeding 1

Reversal feeding 2

From previous page.

Copying 2nd side

Delivery

Figure 2-206

2-12

5. Manual Feeder Pickup/Delivery

An original moves as follows:

Pickup

Stopping original

CHAPTER 2 OPERATIONS

Switch-back

Copying

Delivery

Figure 2-207

2-13

CHAPTER 2 OPERATIONS

C. Detecting an Original

1. Outline

The machine is equipped with the following five original detection mechanisms:

Function

Original detection

Original size detection 1

Original size detection 2

Pre-last original detection

Manual feeder original detection

Description

Detects the presence/absence of an original on the original tray.

Detects the size of an original set on the original tray (large- or small-size).

Detects the size of an original being fed (default size).

Detects whether the original on the original tray is the last original or not.

Detects the presence/absence of an original in the manual feeder.

Table 2-203

PI12

Sensor (notation)

Original sensor (S6)

Original trailing edge sensor (S7)

Registration roller clock sensor (PI5) Original width detecting switch (SW301)

Pre-last original sensor (S8)

Manual feed sensor (PI12)

2-14

S6

(light-emitting side)

S6

(light-receiving side)

S7

SW301

S8

PI5

Figure 2-208

Canon DU7-1101-000, imageRUNNER 600 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

CONTENTS

GENERAL DESCRIPTION

A. ADF for imageRUNNER 600

Specifications

A. External View

B. Cross Section

Original Set indicator

B. Warnings and Actions to Take

C. Routine Maintenance by the User

Operations

A. Electrical Circuitry

B. Communication with the Copier

C. Inputs to the ADF Controller PCB

D. Outputs from the ADF Controller PCB

A. Outline

B. Operations

2. CWW Pickup/Delivery

Outline

3. Pre-Reversal Pickup, Reversal, Delivery (small-size original)

4. Reversal Pickup, Reversal, Delivery (large-size original)

5. Manual Feeder Pickup/Delivery

C. Detecting an Original

1. Outline