Service manual

II. GENERAL CIRCUIT DIAGRAM
A. Engine Controller PCB
A - 3
APPENDIX
J201
Interface controller PCB
1
2
1
2
2
1
2
1
J3M
J3F
J901F
J901M
Display
unit
J208M
J208F
J801F
J801M
J802F
Scanner
motor
Laser drive
PCB unit
PD
LD
+5V
R0
BD
GND
J802
LD801
IC802
Laser FPC
unit
J004FJ003F
PS003PS002
M
M001
J211M
J211F
+5V
GND
/PISNS
+5V
GND
PAPERSNS
J401M
J401F
/MB
MB
/MA
MA
J204M
J204F
+24V
CPUD
SL
SL001
J205M
1
2
3
4
5
6
SW101
INL101
FG
1
2
3
12
J102F
J102M
SW301
Engine controller PCB
J304
PR
HVT connector
PS201
Toner cartridge
J302
TR
J301
DV
J303
GND
FSRTH
GND
J206M
1
2
J206F
1
2
2
1
2
1
J008F J008M
2
1
2
1
J009M J009F
J703M
12
12
J703F
Fixing film unit
2
1
2
1
J702F J702M
H701
FU701
J007F
/CLK
/SO
/SI
/STRB
GND
+5V
+24V
/ACC
/DEC
GND
+5V
GND
VDO
/VDO
CNT1
CNT0
/BDI
+3.3V
GND(+24VM)
+24VM
+24VM
GND(+24VM)
GND
+3.3V
+5V
GND
/SCLK
/SC
/BD
/RESET
/VDO
VDO
GND
GND
+5V
+3.3V
+3.3V
GND
HOT
NEUTRAL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
1
2
3
4
4
3
2
1
3
2
1
3
2
1
4
3
2
1
4
3
2
1
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
1
2
1
2
Paper-out
sensor
Paper top
sensor
Main motorPick-up
solenoid
12
Paper delivery
sensor
Door open
detection switch
Test print switch
SW201
TH701
+5V
GND