Page 1
Circuit Diagram
MF3240 Series
LaserBase MF3240
Mar 31 2006
Page 2
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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.
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Contents
1 General Circuit Diagram......................................................................................................................... 1
General Circuit Diagram........................................................................................................................ 1
Page 6
Page 7
1 General Circuit Diagram
General Circuit Diagram
General Circuit Diagram
SCNT-PWR
RELAY HNS
J151D
J151DH
SCNT-PWR HNS
J151L
USB
2.0
P110
98 2345617
POWER_OFF
GND
716543289
+3.3V
TO Daughter Board I/F
+24V
+24VHGHG
DOC_SEN/
PHASE1
DOC_EXIT_SEN/
PWR_DOWN_INT/
ADF_I11
PHASE2
ADF_I02
ADF_I01
ADF_I12
ADF_MOTOR_VREF
GND
GND
GND
+5V
+3.3V
3456789
J101
1
2
J105
20 18 16
GND
1
ESSLED
+5V
ECLK
11 131415 171819
10 12
1214
KO4/LCD3
KO5/RS
KO6
KO7
XWR1
ESSKEY
KO2/LCD1
KO3/LCD2
KE7
KE1/LCD0
KE6
1RGTCVKQP2CPGN
1
GND
V5
10
982345617
9876543
10 2
DB6
DB7
DB5
DB4ER/WRSVDD
1
LCD MODULE
+3.3SW
+24V
GND
+5V
GND
GND
ONLY 4in1
24 302826201816
1
2
1
2
RL_DRV
6QR5GPUQT2%$
PS901
1
3
2
4
31
J901
TOPSNS
GND
+3.3V
231
12
J509
1234567
+5V
GND
/STRB
/CLK
/SO
/ST
FWD
J508
3
4
3
4
NO SIGNAL
NO SIGNAL
+24U
+24U
GNDP
GNDP
321
1234
J504
1
J503
10
+24V
/ACC
/DEC
GNDP
+5V
GNDL
+3.3V
/BDI
CTL0
CTL1
GNDL
/VIDEO1
VIDEO1
GNDL
+3.3V
GNDL
POSNS
HARNESS
POLYGON MOTOR
J911
7654321
1
2
3
4321
2-353293--4 BK
J701
10
9
8
7
6
5
4
3
2
1
J601
J553
PO SENSOR PCB
PS911
314
.CUGTUECPPGTOQVQT
.#5'470+6
J550
GND
EXP FULL
SENS HNS
ENGINE CONTROLLER
MTR_ON
ENABLE
MPDRV
2CRGTHWNNUGPUQT
SR1
321
OVERFLOW
GND
+3.3V
123
J512
+24V
2
NO
Inter Lock SW
12 14 22
CRGSNS
PRACC
MTR_A
MTR_B
GNDL
+5V
SW501
PRDCC
J551
COM
1
DVACC
+24U
TRNFOT
TRCRNT
%CUUGVVGRKEMWRUQNGPQKF
SL2
SL
21
CSTDRV
+24V
J506 J507
PS502
MP_SENS
PS501
CST_SENS
FSRDO
+3.3V
+3.3V
TRPWM
GNDL
GNDL
TO TONNER
SENSOR
4321
+5V
TONOR
GND
TONNER
SENS HNS
1234
10
J511
9
J806
8
7
531
246
2341
J505
J501
1234567891011 13 15 17 19 21 23 25 27 29
+24V
+24V
GNDP
GNDP
NCU_DCLIM
4
VREFSPCLK
12
NCU
GND
TXRX1
ANIN
NCU_PRL
NCU_HDTD
/HOOK1
/HOOK2
NCU_CMLRL
NCU_HRL
/CI1
VREF
98765
J109
1
MODE
GND
VCC
Vout
12
GND
16 18
1210
J104
1234
IR_AO
/IR_AO
IR_BO
/IR_BO
4321
M
M2
5%#0/1614
VDR
2016
KE5
52'#-'4
VO1
VO2
21
J106
J103
123456789101113151719
KI1
KE2
KE3
KE4
SCNT-CIS
FFC
20
18
GND
NCU_DCSEL
/CI2
3
1
2
J107
12111098765432
VLED
BLED
GLED
RLED
GND
1234567891011
J151
CIS
21
TH2
21
TH1
H1
GND
1715141311
1
+3.3V
J102
LINE
EXT.
COR2
10
9
8
7
642
135
GNDL
FSRTH
SUBTH
+3.3V
ESS_PRI
SCLK
SC
GND
BDI
/RST
GND
/VDO
VDO
GND
ECNT-SCNT FFC
Pr
Fv
Dev
FT1
MT2
Drum
Tr
6QPGT%CTVTKFIG
HTR_C
HTR_H
J1001F
2
21
1
TP1
MT1
TP
12
AC HARNESS
J302
J2
982345617
2QYGTUWRRN[WPKV
231
J1
J305
10
9
8
7
6
5
4
3
2
1
J3
GNDP
GNDP
+24V
+24V
GNDL
+5V
GNDL
+3.3V
FSRDO
/RL_DRV
1
J307
HVT PCB
J304
J303
14
1234
M1
/CKPOQVQT
J301
J401
MA
/MAMB/MB
M
J402
12
/MPUD
+24V
12
SL
SL1
/WNVKRKEMWRUQNGPQKF
J306
130
10
F-1-1
1
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2
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Mar 31 2006
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