User`s guide
12345678910
FUSER ASSEMBLY
TP1
H1
TH1
J744
D741
LOW
UP
J743
J742
HIGH-VOLTAGE
CONNECTOR BOARD
J210
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
GNDTH
FSRTH
+24VB
+5V
TVIN
HVRST
/TVOUT
SLI2
SL02
GND
F
A1
B1
A2
B2
A3
B3
A4
B4
A5
B5
A1
B1
A2
B2
A3
B3
A4
B4
A5
B5
J401
J402
HV
POWER
SUPPLY
TB404
TB403
TB405
TB401
TB402
TB406
123
ANT
GND
REF
TRANSFER
BLOCK
TONER
CARTRIDGE
GND
ANTIN
DEV
TR
PRI
GND
123
LASERWRITER PRO I/O BOARD
J15
J2
J13
1
40
1234567891011121314151617181920
1
2
3
4
1
2
3
4
J207
1234567891011121314151617181920
GND
/BD
/PPRDY
/RDY
/VSREQ
/SBSY
/STS
/PCLK
/CBSY
/PRNT
/VSYNC
/CPRDY
GND
/CMD
/CCLK
GND
/VDO
GND
GND
GND
LINE
INPUT
Main
Power
Switch
SW101
J102
POWER SUPPLY
J101
J105
J103
J104
J212
TB201
DC CONTROLLER BOARD
/FSRD
RLD
THOUT
+5V
+5V
+24VA
GND
GND
GND
123456
123456
123
12
J204
J203
LED
STATUS
PANEL
GND
/RXD
+5V
/TXD
+24VB
J205J206
J731J151J721
LASER/SCANNER ASSEMBLY
BEAM DETECT
IC UNIT
SCANNER
MOTOR UNIT
LASER DRIVER
M5
GND
GND
GND
/BDI
+5V
SCNCLK
+24VA
/SCNON
/SCNRDY
+5V
/LON
/ENBL
/VDATA
APCIN
APCOUT
J201
+5V
J131
MAIN MOTOR
M1
J211
J601
SW601
'H' When Door
Is Open
EXHAUST
FAN
FM1
J209
'H' When
Tripped
J208
PS201
DELIVERY/
INTERLOCK
SENSOR
GND
GND
GND
GND
PSL
PSNS
FAND
FLOCK
/MRDY
DOPEN
PBP
PAP
SLI1
SLO1
+24VB
+24VB
GND
GND
+24VA
+24VA
+24VD
/MON
SW603/4/5
Cassette Size
Sensing Switches
M4
1
2
3
4
A
/A
B
/B
123 123
J605
J604
J136
SENSOR HOLDER
ASSEMBLY
ENVELOPE
FEEDER
(Optional)
J931
J932
PS931
PS601 PS602
CASSETTE
PAPER SENSOR
REGISTRATION
PAPER SENSOR
Envelope Feeder
Paper-Present Sensor
'L' When Tripped
'L' When
Tripped
123456
1234
1234
PICKUP CONTROLLER BOARD
1STL
GND
1STS
RESL
GND
RESS
+24VA
EBVO
EBVI
GND
F
F
J603
J135
SHEET
FEEDER
(Optional)
+24VA
2NDO
2NDI
GND
F
F
SW602
Service Test
Page Switch
Pickup Roller
Clutch Solenoid
SL851
M3
J853
J852
J851
SW851
SW852
SW853
PS851
Sheet Feeder
Paper-Present
Sensor
Cassette Size
Sensing Switches
A
/A
B
/B
1
2
3
4
5
1 2 3 4 5 6 7 8 9 10 11 1213
12345678910111213
1234567 123456 1234
123456781234567
1234
1234
123
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
1
2
3
1
2
3
4
1
2
3
4
M2
PA
Multipurpose
Paper-End
Sensor
Multipurpose
Paper-Present
Sensor
PICKUP SENSOR BOARD
PS701
PS702
J602
SL702
SL701
Multipurpose
Pickup Roller
Clutch Solenoid
'L' When Tripped
'H' When Tripped
Cassette Pickup Roller
Clutch Solenoid
A1 B1A2 B2 A3 B3A4 B4 A5 B5
A1 B1A2 B2 A3 B3A4 B4 A5 B5
J701
J702
J703
J704
1
2
3
4
1
2
3
1
2
+24VA
MPD
GND
PA
/PA
PB
/PB
1STD
+24VA
/PA
MP
/PB
1ST
PB
MPS
MPE
GND
+24VA
D742
J741
123
1
2
3
PDS
J601
J603
J602
J604
J605
PICKUP CONTROLLER BOARD
(Solder Side)
12
34
J136
1
2
3
J743
67
8
13
1
4
1
5
6
1
4
1
1
A
C
B
B
A
C
A
B
LaserWriter Pro 600/630
Wiring Diagram