Canon GP605, Gp-605v, Gp-600 Service Manual ADF-GP605

ADF FOR

GP605/605V

SERVICE MANUAL

REVISION 0

JAN. 1999

FY8-13FE-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 confidential 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 GP605/605V

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 GP605/GP605V .......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

mechanism).

2. Pre-Reversing Mechanism

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

originals.

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 GP605/GP605V

Item

Pickup Original placement

Original position

Original separation Original type

Original size

Original tray

Original delivery tray

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, L TR, A4R, B5R, LTRR

Remarks

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

For paper of 80 g/m2 or less.

For paper of 80 g/m2 or less. For paper of 80 g/m

2

or less.

For paper of 80 g/m2 or less.

Original processing Stream reading

Manual feed Original size

identification Residual paper detection Size mixing Book original

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)

Table 1-202-1

1-2

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. Not including delivery tray.

1-3

CHAPTER 1 GENERAL DESCRIPTION

III . NAMES OF PARTS

A. External View

[3]

[2]

[1]

[4]

[5]

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

[6]

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

Figure 1-301

1-4

B. Cross Section

CHAPTER 1 GENERAL DESCRIPTION

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

[17]

[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

[16]

[15] [14][13]

[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]

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

CHAPTER 1 GENERAL DESCRIPTION

C. Routine Maintenance by the User

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

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

Related Error Code

A fault has occurred in the communication with the copier.

E422 E712

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)

Motor

Sensor

Solenoid

Clutch

Original indicator LD PCB

Tray PCB

Reversal motor driver PCB

Belt motor driver PCB

Motor

B. Communication with the Copier

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

Power supply PCB

Copier

Figure 2-101

2-1

CHAPTER 2 OPERATIONS

C. Inputs to the ADF Controller PCB

Inputs to the ADF Controller PCB (1/2)

ADF controller PCB

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

J12-1

J12-6

J12-7

-3

-2

-5

-4

-9

-8

BTCLK

+5V

SPCLK

+5V

LCVR

Pulses according to the speed of the belt motor.

Pulses according to the speed of the separation motor.

When the left cover is closed, '1'.

+5V

J12-10

-12

-11

PRTR

When paper is present, '1'.

+5V

J14-B8

J141

-1

-3

-2

-4

-6

-5

-7

-9

-8

-B10

TRCLK

-B9

+5V

J14-B5

-B7

LCVF

-B6

+5V

-9

-7

-8

J14-A3

-A5

-A4

PKHP

+5V

-6

-4

-5

J14-A6

-A8

-A7

PKH1

+5V

-3

-1

-2

J14-A9

-A11

-A10

PKH2

+5V

J12-13

-15

RFOP

-14

Pulses according to the speed of the registration roller.

When the left cover is closed, '1'.

When the pickup roller is in the home position, '1'.

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

When the ADF is closed, '1'.

+5V

J3-3

-2

EJCLK

-1

-10

-9

+5V

MFST

J21J23

-3

-5

-1

-7

-2

-6

-8

-10

-9

J2-8

-5

-3

-4

Pulses according to the speed of the delivery motor.

When paper is present, '1'.

+5V

J2-13

-15

-14

EJJAM

When paper is present, '1'.

2-2

Figure 2-102

Inputs to the ADF Controller PCB (2/2)

CHAPTER 2 OPERATIONS

ADF controller PCB

Reversal sensor

Pre-registration paper sensor

Post-registration paper sensor

Separation sensor

Skew sensor

Original sensor (light-receiving)

Original sensor (light-emitting)

S6

S1

S2

S3

S4

S5

-B4

-B3

-B2

J13-8

-10

-11

-12

-13

J13-2

-A2

TNSAJ TNS

-3

RGBSAJ

-4

RGBS

-5

RGASAJ

-6

RGAS

-2

-9

SPSAJ SPS

SKSAJ SKS

DTS

-1

DTSAJ

+5V

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

+5V

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

+5V

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

When paper is present, '0'.

Paper reference signal

+5V

-4

-1

-2

-3

Comparator

circuit

+5V

-6

-1

-6

-2

-5

Comparator

circuit

-3

-4

-3

-5

-2

Comparator

circuit

+5V

Comparator

circuit

Comparator

circuit

-2

-1

-2

-1

J133 J132J135

-1

-6

-5

-4

-3

-2

-4

-1

-4

-2

-3

-2 J144J149

-8

-1

-3

-6

-4

-5

-4

-6

-3

-7

-2

-6

-1

-6

-2

-5

-3

-4

-3

-5

-2

J131J134

-8

-1

-2

-7 J132J136

-3

-1

-2

-2 J140J145

J14-B1

-1

-6

-5

-4

-3

-2

J13-14

J14-A1

Original trailing edge sensor

Copy paper

Pre-last original paper sensor

Copy paper

Manual feeder registration roller paper sensor

S7

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

S8

S9

Tray PCB

+5V

-4

-1

-2

-3

+5V

Original width detecting switch

SW301

-1

-4

-3

-2 J23 J21J25

-13

-10

-11

-12

J51

-4

-7

-4

-6

-5

-6

Figure 2-103

+5V

-2

-5

-4

-7

-6

-3

-9

-8

J5-12

-10

-11

J51-1

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

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

+5V

-9

-6

-7

-8

J2-4

-7

-6

-5

MFRGSAJ MFRGS

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

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

A A B B*

+24V +24V

A A B B*

-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

-4

*

-5

-6

J602

-1

-2

-3

-4

*

-5

-6

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

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

-1

-2

-1

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 deliver-

ing 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 2 (SL4D2)

Delivery motor drive signal

Delivery solenoid drive signal 1 (SL4D1)

Delivery motor clock signal (EJCLK)

SL1

M4

SL3

PI 2

PI 5

CL

M2

M1

M3

PI 1

SL2

SL4

M5

PI 11

2-6

Figure 2-201 Drive Diagram

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)

Left cover rear signal (LCVR)

PI6 PI3

PI8,

PI7

PI9

S6 (light-receiving)

Original sensor light emit signal (DTSAJ)

Original detection signal (DTS)

Left cover front signal (LCVF)

S6 (light-emitting)

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

From previous page.

Copying 2nd side

Delivery

Figure 2-204-2

2-10

Canon GP605, Gp-605v, Gp-600 Service Manual ADF-GP605

INTRODUCTION

CONTENTS

GENERAL DESCRIPTION

I . FEATURES

II . SPECIFICATIONS

III . NAMES OF PARTS

IV . OPERATION

Operations

I . BASIC CONSTRUCTION

II . BASIC OPERATIONS