Canon iR6570 series Service manual

Feb 21 2005
General Timing Chart / General
Circuit Diagram
iR6570/5570 Series

IMPORTANT
This documentation is published by Canon Inc., Japan, to serve as a source of reference for work in the field.
Specifications and other information contained herein may vary slightly from actual machine values or those found
in advertising and other printed matter.
Any questions regarding the information contained herein should be directed to the Copier Service Department of the
Sales Company.
This documentation is intended for all sales areas, and may contain information not applicable to certain areas.
Reproduction without permission not allowed.
Use of this manual should be strictly supervised to avoid disclosure of confidential information.
COPYRIGHT 2001 CANON INC.
Printed in Japan
Caution
Use of this manual should be strictly supervised to avoid disclosure of confidential information.

Contents
1 General Timing Chart............................................................................................................................................... 1
Copying/Printing (A4, 2 Sheets, Single-Sided, Direct; Right Deck (face-down delivery)) ................................... 1
2 General Circuit Diagram .......................................................................................................................................... 3
Signal Names........................................................................................................................................................... 3
General Circuit Diagram ......................................................................................................................................... 6

1
1 General Timing Chart
Copying/Printing (A4, 2 Sheets, Single-Sided, Direct; Right Deck (face-down delivery))
iR5570 / iR6570
F-1-1
Main motor (M2) Developing bias (DC)
Pre-exposure LED
Primary charging Grid bias Developing clutch (CL1) Developing bias (AC) Dust collecting roller bias (DC) Pre-transfer charging bias (DC) Pre-transfer charging bias (AC) Transfer charging Separation charging bias (AC) Separation charging bias (DC) Fixing heater (IH) Drum motor (M1) Laser ON Right deck pickup motor (M11) Right deck pickup solenoid (SL6) Right deck retry sensor (PS19)
Vertical path duplexing feed motor (M25)
Vertical path roller 1 sensor (PS24) Pre-registration motor (M17) Laser write start sensor (PS28) Registration paper sensor (PS29) Registration roller clutch (CL2) Fixing inlet guide solenoid (SL1) Internal delivery sensor (PS35) Eternal delivery sensor (PS36) Fixing motor (M3) Delivery flapper solenoid (SL5) Reversal motor (M14) Reversal sensor 2 (PS38) Reversal sensor 1 (PS37) Fixing web solenoid (SL9) Duplex feed left motor (M19) Duplex feed right motor (M18) Duplex paper sensor (PS34) Duplex pre-registration sensor (PS30) Horizontal registration sensor (PS31) Reversal flapper solenoid (SL8)
Printer unit
PSTBY PINTR PRINT LSTR PSTBY
Print command received
CCW rotation CW rotation
Max. application 600V
Reader motor (M501) Scanning lamp (LA1) HP sensor (PS502)
Start key
ON
STBYSTBY SREADY SCFW SCRW
: Forward
Scanner unit position HP (shading position) HP (shading position)Image trailing edge
Platen board cover scan start positon shift
White plate dust detection control Shading correction
Reader unit
: Reverse

3
2 General Circuit Diagram
Signal Names
List Of Signals
iR5570 / iR6570
T-2-1
Notation Signal name Notation Signal name
APKIT_TH_AD AP kit inside temperature detection signal CONTROLLER_FAN_DEETCT controller fan lock detection signal
BOTTLE_COVER_SNS_DTC toner bottle door open/closed detection signal CONTROLLER_FAN_H/L controller fan full-speed/half-speed drive signal
C1/RDK_SL_ON right deck pickup solenoid drive signal CURL_FAN_DETECT curl-removing fan lock detection signal
C3/C4_FEED_MOTOR_A,A*,B,B* cassette pickup motor drive signal A, A*, B, B* CURL_FAN_ON curl-removing fan drive signal
C3_LENGTH_1 C3 paper length detection signal 1 DC_SUPPLY_FAN_DETECT DC power supply fan lock detection signal
C3_LENGTH_2 C3 paper length detection signal 2 DC_SUPPLY_FAN_DETECT DC power supply fan lock detection signal
C3_LIFTER_MOTOR_ON C3 lifter motor drive signal DC_SUPPLY_FAN_ON DC power supply fan drive signal
C3_LIFTER_ON C3 lifter motor drive signal DC_SUPPLY_FAN_ON DC power supply fan drive signal
C3_LIFTER_SENSE C3 lifter detection signal DEL_JAM_SENSE delivery residual paper detection signal
C3_OPEN_SENSOR C3 open detection signal DELIVERY_M_A,A*,B,B* delivery motor drive signal A, A*, B, B*
C3_PAPER_SENSOR C3 paper sensor DEV_CL_ON developing clutch drive signal
C3_PICKUP_SL_ON C3 pickup solenoid drive signal DEV_TONER_SENSOR developing assembly toner detection signal
C3_PLEVEL_VR C3 paper level detection signal DRUM_M_ON drum motor drive signal
C3_RETRY_SENSOR C3 retry sensor paper detection signal DUP_FEED_R_A,A*,B,B* duplexing feed right motor drive signal A, A*, B, B*
C3_VOLUME_DTC C3 paper width detection signal DUPLEX_FAN_DETECT duplexing feed fan lock detection signal
C4_LENGTH_0 C4 paper length detection signal 0 DUPLEX_FAN_ON duplexing feed fan drive signal
C4_LENGTH_1 C4 paper length detection signal 1 DUPLEX_PAPER_SENSOR duplexing paper detection signal
C4_LIFTER_MOTOR_ON C4 lifter motor drive signal FEED_FAN_DET feed fan lock detection signal
C4_LIFTER_OM C4 lifter motor drive signal FEED_FAN_H/L feed fan full-speed/half-speed drive signal
C4_LIFTER_SENSE C4 lifter detection signal FLAP_SL_ON paper deflecting plate solenoid drive signal
C4_OPEN_SENSOR C4 open detection signal FRONT_DOOR_DETECT front door closed detection signal
C4_PAPER_SENSOR C4 paper sensor FSR_ENT_SNS fixing inlet paper detection signal
C4_PICKUP_SL_ON C4 pickup solenoid drive signal FSR_EXIT_SNS fixing outlet paper detection signal
C4_PLEVEL_VR C4 paper level detection signal FSR_M_ON fixing motor drive signal
C4_RETRY_SENSOR C4 retry sensor paper detection signal FUSER_F_SL_UP fixing inlet guide solenoid drive signal (ascent)
C4_VOLUME_DTC C4 paper width detection signal FUSER_SL_DOWN fixing inlet guide solenoid drive signal (descent)
CIR_DUCT_FAN_DTC circulation duct fan lock detection signal H_REGI_A,A*,B,B* horizontal registration motor drive signal A, A*, B, B*
CIR_DUCT_FAN_H/L circulation duct fan full-speed/half-speed drive signal H_REGI_HP horizontal registration HP detection signal
CLAW_JAM_SNS claw jam detection signal HEAT_DISCHARGE_FAN_DETECT heat discharge fan lock detection signal

4
T-2-2
Notation Signal name Notation Signal name
HEAT_DISCHARGE_FAN_H/L heat discharge fan full-speed/half-speed drive signal MLT_SL_ON manual feed pickup solenoid drive signal
HOP_BOTTLE_ON toner supply motor drive signal MULTI_SENSOR manual feed tray paper detection signal
HOP_LIFT_ON toner stirring motor drive signal MULTI_VOLUME manual feed paper width detection signal
HOP_TONER_SENSOR hopper toner detection signal OPEN ADF open detection signal 2
HP scanner HP detection signal PATH1_SENSOR vertical path 1 paper detection signal
HVT_DEV_BIAS_AC developing AC bias control signal PATH2_SENSOR vertical path 2 paper detection signal
HVT_DEV_BIAS_DC developing DC bias control signal PATH3_SENSOR vertical path 3 paper detection signal
HVT_POST pre-transfer bias control signal PATH4_SENSOR vertical path 4 paper detection signal
HVT_PRIMARY primary bias control signal PLATEN ADF open detection signal
HVT_REMOTE HVT drive signal POST_CLEAN_OUT1 pre-transfer charging wire cleaning motor drive signal
(forward)
HVT_ROLLER_BIAS electrode roller bias control signal POST_CLEAN_OUT2 pre-transfer charging wire cleaner motor drive signal
(reverse)
HVT_SEPARATE separation bias control signal PRAIMARY_FAN_DETECT primary charging cooling fan lock detection signal
HVT_TRANSFER transfer bias control signal PRAIMARY_FAN_H/L primary cooling fan full-speed/half-speed drive signal
INT_DEL_SENSOR inside delivery paper detection signal PRE_LED_ON pre-exposure LED drive signal
INV_FAN_DTC fixing heater power supply fan lock detection signal PRE_REGI_MOTOR_A,A*,B,B* pre-registration motor drive signal A, A*, B, B*
INV_FAN_H/L fixing heater power supply cooling fan full-speed/half-speed
drive signal
PRE_REGI_SENSOR pre-registration paper detection signal
LDECK_FEED_MOTOR_A,A*,B,B* left deck pickup motor drive signal A, A*, B, B* PRIMARY_CLEAN_OUT1 primary charging wire cleaner motor drive signal (forward)
LDECK_FEED_CL_ON left deck pull-off sensor paper detection signal PRIMARY_CLEAN_OUT2 primary charging wire cleaner motor drive signal (reverse)
LDECK_LIFTER_SENSOR left deck lifter detection signal RD_FEED_MOTOR_A,A*,B,B* right deck pickup motor drive signal A, A*, B, B*
LDECK_LIMITTER_SENSOR left deck limit detection signal RDECK_FEED_SNS right deck pull-off sensor paper detection signal
LDECK_OPEN_SENSOR left deck open detection signal RDECK_LIFTER_SENSOR right deck lifter detection signal
LDECK_PAPER_SENSOR left deck paper detection signal RDECK_LIMITTER_SNS right deck limit detection signal
LDECK_RETRY_SENSOR left deck retry sensor paper detection signal RDECK_PAPER_SENSOR right deck paper sensor
LDK_FEED_SENSOR left deck feed paper detection signal RDECK_RETRY_SENSOR right deck retry senor paper detection signal
LDK_LIFTER_ON left deck lifter motor drive signal RDK_LIFTER_ON right deck lifter motor drive signal
LDK_PICK_SL_ON left deck pickup solenoid drive signal RDK_PLEVEL_A_DTC right deck paper level detection signal A
LDK_PLEVEL_A_DTC left deck paper level detection signal A RDK_PLEVEL_B_DTC right deck paper level detection signal B
LDK_PLEVEL_B_DTC left deck paper level detection signal B RDOOR_UNDER_SENSOR right door open/closed detection signal
LOCK fan lock detection signal REGI_CL_ON registration clutch drive signal
MAIN_M_ON main motor drive signal REGI_CL_ON registration clutch drive signal
MLT_FEED_CL_ON manual feed pickup clutch drive signal REGI_SENSOR registration paper detection signal
MLT_PAPER_SENSOR manual feed paper detection signal REGI_SENSOR registration paper detection signal

5
T-2-3
Notation Signal name Notation Signal name
REVERSE_2 SENSOR reversal 2 paper detection signal SIZE2 original size detection signal 2
REVERSE_A,A*,B,B* reversal motor drive signal A, A*, B, B* T/S_CLEANER-1 transfer separation charging wire cleaner drive signal
(forward)
REVERSE_SL_ON reversing solenoid drive signal T/S_CLEANER-2 transfer separation charging wire cleaner drive signal
(reverse)
SHIFT_CCW shift tray motor CCW drive signal VER_DUP_M_A,A*,B,B* vertical duplexing feed motor drive signal A, A*, B, B*
SHIFT_CW shift tray motor CW drive signal VER_L_M_A,A*,B,B* vertical path lower motor drive signal A, A*, B, B*
SHIFT_P_EXIT shift tray outlet paper detection signal VER_U_M_A,A*,B,B* vertical path upper motor drive signal A, A*, B, B*
SHIFT_P_FULL shift tray full detection signal WASTE_TONER_FULL_SW waste toner full detection signal
SHIFT_TRAY_HPL shift tray HP left detection signal WEB_SENSOR web length detection signal
SHIFT_TRAY_HPR shift tray HP right detection signal WEB_SL_ON web solenoid drive signal
SHUT_HP_SNS shutter HP detection signal WRITE_START_SENSOR write check sensor power detection signal
SHUT_M_A,A*,B,B* shutter motor drive signal A, A*, B, B* XE_ON scanning lamp drive signal
SIZE1 original size detection signal 1

6
General Circuit Diagram
General Circuit Diagram (Printer 1/20)
iR5570 / iR6570
F-2-1
A
432
C
B
D
E
F
A
C
B
D
E
F
765 1
4327
8
865 1
(1/20)
F14-5300-A502
To A503
To reader lattice
H2
H3
SW4 Cassette heater
switch
H1
TH5
Drum thermistor
Drum heater
control PCB
Drum heater
Cassette heater
Deck heater
IH
100/120V ONLY
Capacitor PCB
AC driver PCB
Fixing heater
power supply PCB Fixing heater
230V
100/120V SW3
Environment
switch
Environment
switch
SW3
LF1
PLG1
Power supply
cord
Power supply
cord
PLG1
ELCB
Leakage
breaker Line noise filter
LF1
SW1
Main power switch
DC power
supply PCB Option power
supply PCB
FAX
To Modular PCB
Line noise filter

7
General Circuit Diagram (Printer 2/20)
iR5570 / iR6570
F-2-2
A
432
C
B
D
E
F
A
C
B
D
E
F
765 1
4327
8
865 1
(2/20)
F14-5300-A503
to J4013
to J1021
To A512
To A502
To A517
To A518
To A512 To A512To A504
To A518
To A512
FM6
HVT PCB DC controller
PCB
Option power supply PCB
Motor driver PCB
DC power supply PCB
Main controller PCB
DC power supply fan
To 3.5k deck
No used
No used
To Finisher
To FAX unit
To Coin robo
To Reader lattice

8
General Circuit Diagram (Printer 3/20)
iR5570 / iR6570
F-2-3
A
432
C
B
D
E
F
A
C
B
D
E
F
765 1
4327
8
865 1
(3/20)
F14-5300-A504
To A505
at 230V
at 120V
To A503To A507
to J3005
DC controller PCB
Potential sensor PCB
Potential PCB
Fixing heater power supply PCB

9
General Circuit Diagram (Printer 4/20)
iR5570 / iR6570
F-2-4
A
432
C
B
D
E
F
A
C
B
D
E
F
765 1
4327
8
865 1
(4/20)
F14-5300-A505
To A518
To A504 to J4260
DC controller PCB
Manual feed tray
open/closed
sensor
Sub hopper toner
level sensor
Toner stirring motor
Toner supply
motor
Primary
charging
cooling
fan
Drum cleaner
thermistor
PCB
Developing
assembly
toner
sensor
Primary charging wire
cleaning motor
Pre-exposure
lamp
(LED)
Pre-transfer charging wire
cleaning motor
Toner access
cover
open/closed
sensor
Hopper assembly
PS3
TS2
M10
M9
PS54
FM2
TS1
M6
LED1
M7

10
General Circuit Diagram (Printer 5/20)
iR5570 / iR6570
F-2-5
A
432
C
B
D
E
F
A
C
B
D
E
F
765 1
4327
8
865 1(5/20)
F14-5300-A506
To A513
J801DB
DC controller PCB Right deck
pickup
solenoid
Right deck
lifter motor Left deck
lifter motor
SL6
M4 M5
M27
Vertical lower
motor
Cassette 3/4
pickup motor
Left deck
pickup motor
Vertical path
duplexing
feed motor
Pre-registration
motor
Vertical upper
motor
Right deck
pickup motor
Motor driver PCB
M12
M24
M25
M17M26M11

11
General Circuit Diagram (Printer 6/20)
iR5570 / iR6570
F-2-6
A
432
C
B
D
E
F
A
C
B
D
E
F
765 1
4327
8
865 1
(6/20)
F14-5300-A507
To A504
to J119
To A508
To A518
TP1
PS45
M15
THM2
THM1
THM3
DC controller PCB
Fixing main
thermistor
Fixing sub
thermistor
Shutter
thermistor
Shutter motor Fixing web
length sensor
Fixing thermal switch

12
General Circuit Diagram (Printer 7/20)
iR5570 / iR6570
F-2-7
A
432
C
B
D
E
F
A
C
B
D
E
F
765 1
4327
8
865 1
(7/20)
F14-5300-A508
M3
FM5
PS53
PS52
PS51
PS4PS35
M13
To A509
To A509
SL9
to J251
to J611
To A509 To A509
To A507
Delivery motor
Internal delivery
sensor Claw jam sensor Fixing inlet sensor Fixing outlet sensor
Shutter HP sensor
Fixing web drive
solenoid Curl-removing
fan
Fixing motor

13
General Circuit Diagram (Printer 8/20)
iR5570 / iR6570
F-2-8
A
432
C
B
D
E
F
A
C
B
D
E
F
765 1
4327
8
865 1
(8/20)
F14-5300-A509
PS36PS46
To A508
To A508
to J251
to J1006
To A508
to J1005
SL5
SW7
SL1
M8
PS29
CL2
Registration clutch
Registration
paper sensor
Transfer separation
charging wire
cleaning motor
Fixing inlet guide
drive solenoid Fixing feeding unit
detection switch
Delivery flapper
solenoid
Delivery jam sensor External delivery
sensor

14
General Circuit Diagram (Printer 9/20)
iR5570 / iR6570
F-2-9
A
432
C
B
D
E
F
A
C
B
D
E
F
765 1
4327
8
865 1
(9/20)
F14-5300-A510
To A518
DC controller PCB
Duplex
pre- registration
sensor
Duplexing
paper
sensor
Left deck
feed paper
sensor
Duplex
horizontal
registration
sensor
Reversal
sensor 2 Flapper
solenoid
Duplexing
horizontal
registration
motor
Waste toner
feedscrew
lock detection
switch
Duplexing drive PCB
Duplexing feed
fan
Duplexing feed
right motor
Reversal
sensor 1
Reversal motor
Duplexing feed
left motor
PS30
PS34
PS38 SL8
PS33PS31
M16
SW5
FM8
M18
M19 M14 PS37