Ricoh af 850 Service Bulletin
1 7 143 9 166 12 19 222 8 155 11 18 214 10 1713 20 23
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
1st Paper Feed
Sensor
1st Paper End
Sensor
1st Tray Lift
Sensor
1st Pick-up
Solenoid
2nd Paper Feed
Sensor
2nd Paper End
Sensor
2nd Tray Lift
Sensor
2nd Pick-up
Solenoid
3rd Paper Feed
Sensor
3rd Paper End
Sensor
3rd Tray Lift
Sensor
3rd Pick-up
Solenoid
1st Separation
Roller Solenoid
1st Paper Feed
Clutch
1st Vertical
Transport Clutch
2nd Separation
Roller Solenoid
2nd Paper Feed
Clutch
2nd Vertical
Transport Clutch
3rd Separation
Roller Solenoid
3rd Paper Feed
Clutch
3rd Vertical
Transport Clutch
Rear Fence Drive
Motor
Rear Fence HP
Sensor
Rear Fence Return
Sensor
Left 1st Tray Paper
Sensor
Front Side Fence
Open Sensor
Front Side Fence
Close Sensor
Rear Side Fence
Open Sensor
Rear Side Fence
Close Sensor
Front Side Fence
Solenoid
Rear Side Fence
Solenoid
Right 1st Tray
Paper Sensor
1st Tray Paper
Height 4 Sensor
1st Tray Paper
Height 3 Sensor
1st Tray Paper
Height 2 Sensor
1st Tray Paper
Height 1 Sensor
Base Plate Down
Sensor
3rd Paper Size
Switch
2nd Paper Size
Switch
Toner Suction
Motor Sensor
Toner Suction
Motor
Sucked Toner
Collection Bottle
Sensor
S17
S23
S20
1
SOL
2
2
S18
S24
S21
1
SOL
2
3
S19
S25
S22
1
SOL
2
4
1
SOL
2
5
1
MC
2
3
1
MC
2
9
1
SOL
2
6
1
MC
2
4
1
MC
2
10
1
SOL
2
7
1
MC
2
5
1
MC
2
11
M20
S26
S27
S37
S28
S29
S30
S31
SOL
8
SOL
9
S38
S36
S35
S34
S33
S32
SW11
SW10
3rd Tray Lift
Motor
2nd Tray Lift
Motor
Lower Relay
Clutch
Left 1st Tray
Lock Solenoid
Tandem Tray
Connect Solenoid
1st Tray Lift
Motor
S52
M35
S53
3
10
2
2
9
3
1
8
4
3
7
5
2
6
6
1
5
7
3
4
8
2
3
9
1
2
10
2
1
11
1
11
1
3
10
2
2
9
3
1
8
4
3
7
5
2
6
6
1
5
7
3
4
8
2
3
9
1
2
10
2
1
11
1
11
1
3
10
2
2
9
3
1
8
4
3
7
5
2
6
6
1
5
7
3
4
8
2
3
9
1
2
10
2
1
11
1
6
1
2
5
2
1
4
3
2
3
4
1
2
5
2
1
6
1
6
1
2
5
2
1
4
3
2
3
4
1
2
5
2
1
6
1
1
6
2
2
5
1
3
4
2
4
3
1
5
2
2
6
1
1
1
1
2
2
2
1
2
1
2
3
1
2
3
1
2
3
1
2
3
2
1
1
2
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
M17
M16
MC
14
SOL
11
SOL
10
3
2
1
3
2
1
3
3
1
5
5
3
6
6
2
7
7
1
9
9
10
10
3
11
11
2
12
12
1
13
13
3
14
14
2
15
15
1
8
8
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
31
31
30
30
29
29
28
28
27
27
26
26
25
25
24
24
23
23
22
22
21
21
20
20
19
19
18
18
17
17
16
16
6
1
6
5
2
5
4
3
4
3
4
3
2
5
2
1
6
1
6
1
6
5
2
5
4
3
4
3
4
3
2
5
2
1
6
1
5
4
3
2
1
5
4
3
2
1
2
1
1
2
1
2
2
1
1
2
2
1
2
M15
1
2
1
1
2
3
1
2
2
1
3
CN511-A1
-A10
-A11
-B10
-B11
CN513-1
CN512-A1
CN515-1
CN516-A1
-A10
-A11
-A12
-A13
-A14
-A15
-B10
-B11
-B12
-B13
-B14
-B15
CN510-A1
-A10
-A11
-A12
-B10
-B11
-B12
CN509-5
CN517-A1
[5]
-2
t
[5] +5V
-3
[0] GND
-4
[5]
-5
s
[5] +5V
-6
[0] GND
-7
[5]
-8
t
[5] +5V
-9
[24] +24V
-10
[ 24]
t
-11
[0] GND
-A2
[5]
t
-A3
[5] +5V
-A4
[0] GND
-A5
[5]
s
-A6
[5] +5V
-A7
[0] GND
-A8
[5]
t
-A9
[5] +5V
[24] +24V
[ 24]
t
-B1
[0] GND
-B2
[5]
t
-B3
[5] +5V
-B4
[0] GND
-B5
[5]
s
-B6
[5] +5V
-B7
[0] GND
-B8
[5]
t
-B9
[5] +5V
[24] +24V
[ 24]
t
[24] +24V
-2
[ 24]
t
-3
[24] +24V
-4
[ 24]
t
-5
[24] +24V
-6
[ 24]
t
[24] +24V
[ 24]
t
-A2
[24] +24V
-A3
[ 24]
t
-A4
[24] +24V
-A5
[ 24]
t
-A6
[24] +24V
-B1
[ 24]
t
-B2
[24] +24V
-B3
[ 24]
t
-B4
[24] +24V
-B5
t
[ 24]
-B6
[ 5] Left 1st Tray Set
t
[ 24] +
t
-2
[ 24] –
t
-3
[0] GND
-4
[5]
s
-5
[5] +5V
-6
[0] GND
-7
[0] GND
-8
[5]
s
-9
[5] +5V
-10
[0] GND
-11
[5]
t
-12
[0] GND
-13
[ 5] Right 1st Tray Set
t
-A2
[5] +5V
-A3
[5]
s
-A4
[0] GND
-A5
[5] +5V
-A6
[5]
s
-A7
[0] GND
-A8
[5] +5V
-A9
[5]
s
[0] GND
[5] +5V
[5]
s
[0] GND
[24] +24V
[ 24]
t
-B1
[ 24]
t
-B2
[24] +24V
-B3
[0] GND
-B4
[5]
s
-B5
[5] +5V
-B6
[5]
s
-B7
[5]
s
-B8
[5]
s
-B9
[0] GND
[5]
s
[5] +5V
[0] GND
[5]
s
[5] +5V
[0] GND
[0] GND
-A2
[ 5] Size 5
t
-A3
[ 5] Size 4
t
-A4
[ 5] Size 3
t
-A5
[ 5] Size 2
t
-A6
[ 5] Size 1
t
-A7
[0] GND
-A8
[ 5] Size 5
t
-A9
[ 5] Size 4
t
[ 5] Size 3
t
[ 5] Size 2
t
[ 5] Size 1
t
-B1
[0 or 5] Paper Height 2
-B2
[0] GND
-B3
[0 or 5] Paper Height 1
-B4
[ 24] +
t
-B5
[ 24] –
t
-B6
[0 or 5] Paper Height 2
-B7
[0] GND
-B8
[0 or 5] Paper Height 1
-B9
[ 24] +
t
[ 24] –
t
[24] +24V
[ 24]
t
[24] +24V
-6
[ 24]
t
-7
[24] +24V
-8
[ 24]
t
-9
[24] +24V
-10
[ 24]
t
[0] GND
[0, 5 0/5]
-A2
-A3
[5] +5V
-A5
[0] GND
-A6
[24] +24V
-B4
[5] +5V
-B5
[5]
t
-B6
[0] GND
→
Toner Suction Motor
IOB
(PCB4)
LCT 1st Paper Feed Sensor [ 5]
LCT 2nd Paper Feed Sensor [ 5]
LCT 3rd Paper Feed Sensor [ 5]
LCT 1st Lift Sensor [ 5]
LCT 2nd Lift Sensor [ 5]
LCT 3rd Lift Sensor [ 5]
LCT 1st Paper End Sensor [ 5]
LCT 2nd Paper End Sensor [ 5]
LCT 3rd Paper End Sensor [ 5]
LCT 1st Paper Feed Clutch [ 5]
LCT 2nd Paper Feed Clutch [ 5]
LCT 3rd Paper Feed Clutch [ 5]
LCT 1st Grip Clutch [ 5]
LCT 2nd Grip Clutch [ 5]
LCT 3rd Grip Clutch [ 5]
LCT Transport Clutch [ 5]
1st Paper Feed Clutch [ 5]
2nd Paper Feed Clutch [ 5]
3rd Paper Feed Clutch [ 5]
LCT 1st Paper Feed Clutch [ 5]
LCT 2nd Paper Feed Clutch [ 5]
LCT 3rd Paper Feed Clutch [ 5]
1st Relay Clutch [ 5]
2nd Relay Clutch [ 5]
3rd Relay Clutch [ 5]
LCT 1st Grip Clutch [ 5]
LCT 2nd Grip Clutch [ 5]
LCT 3rd Grip Clutch [ 5]
1st Paper Feed Sensor [ 5]
2nd Paper Feed Sensor [ 5]
3rd Paper Feed Sensor [ 5]
LCT 1st Paper Feed Sensor [ 5]
LCT 2nd Paper Feed Sensor [ 5]
LCT 3rd Paper Feed Sensor [ 5]
1st Tray Lift Sensor [ 5]
2nd Tray Lift Sensor [ 5]
3rd Tray Lift Sensor [ 5]
LCT 1st Tray Lift Sensor [ 5]
LCT 2nd Tray Lift Sensor [ 5]
LCT 3rd Tray Lift Sensor [ 5]
1st Paper End Sensor [ 5]
2nd Paper End Sensor [ 5]
3rd Paper End Sensor [ 5]
LCT 1st Paper End Sensor [ 5]
LCT 2nd Paper End Sensor [ 5]
LCT 3rd Paper End Sensor [ 5]
Direction [0: ccw, 5: cw]
Speed [0: High, 5: Low]
[0] GND
CN514-1
11
1
A294 , A295 onlyII II
A294 Point to Point Diagram 1/2
+5V [5]
+24V [24]
24V-INT1 [24]
24V-INT2 [24]
GND (5V) [0]
GND (24V) [0]
GND (24V) [0]
GND (24V) [0]
Data [0\5]
Clock [0\5]
LATCH [0\5]
O.E. [0\5]
GND [0\5]
Select A [0\5]
Select B [0\5]
Select C [0\5]
Not Used
Signal A [0\5]
Signal B [0\5]
Signal C [0\5]
Signal D [0\5]
+5V [5]
GND (5V) [0]
+24V [24]
GND (24V) [0]
24V-INT2 [24]
GND [0]
24V-INT2 [24]
GND [0]
24V-INT1 [24]
GND [0]
+24V-INT1 [24]
GND [0]
+24V [24]
GND [0]
Overloard [ 5]
On [ 5]
+24V-INT2 [24]
GND [0]
Circuit Braker
ÀÁ ÀÁ
CB1 NF1
ÂÃ ÂÃ
Fusing Unit
Thermistor
TH1
Fusing
Lamp
2
1
2
1
E
C
O11
D
CN501-1
-2
-3
-4
-5
-6
-7
-8
CN505-1
13
-2
12
-3
11
-4
10
-5
9
-6
8
-7
7
-8
6
-9
5
-10
4
-11
3
-12
2
-13
1
8
CN507-A1
t
t
t
t
t
t
s
s
s
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
s
s
s
s
s
s
t
t
-A2
-A3
-A4
-A5
-A6
-A7
-A8
-B1
-B2
-B3
-B4
-B5
-B6
-B7
-B8
CN504-1
CN502-6
CN506-15
CN508-A15
-A14
-A13
-A12
-A11
-A10
-B15
-B14
-B13
-B12
-B11
-B10
CN503-4
CN509-1
CN502-5
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
1
2
-2
3
-3
4
-4
L23
-2
-7
-3
-8
-4
CN607-1
-14
-2
-13
-3
-12
-4
-11
-5
-10
-6
-9
-7
-8
-8
-7
-9
-6
-10
-5
-11
-4
-12
-3
-13
-2
-14
-1
-15
CN605-A1
-A2
-A3
-A4
-A5
-A6
-A9
-A7
-A8
-A8
-A7
-A9
-A6
-A10
-A5
-A11
-A4
-A12
-A3
-A13
-A2
-A14
-A1
-A15
-B1
-B2
-B3
-B4
-B5
-B6
-B9
-B7
-B8
-B8
-B7
-B9
-B6
-B10
-B5
-B11
-B4
-B12
-B3
-B13
-B2
-B14
-B1
-B15
CN608-1
-3
-2
-2
-3
-1
-4
-2
-3
-4
1
2
-1
3
F
LCT
[0/5] Scan 0
[0/5] Scan 1
[0/5] Scan 2
[0/5] Scan 3
[0/5] Data
[0/5] Clock
[0/5] LATCH
[0/5] O.E.
[0/5] Signal 0
[0/5] Signal 1
[0/5] Signal 2
[0/5] Signal 3
[0/5] Signal 4
[ 5] Lower Relay Clutch
t
[ 5] LCT Transport Clutch
t
Left Front Door Close [ 5]
t
[0]
[0]
-2-3-4
JBH
M13
Paper Feed
Motor
C8
IAG
C9
Noise Filter
Thermofuse
(TF1)
Left Front Door
Safety Switch
(SW7)
JI HG
Right Front Door Close [ 5]
/A [24 0/24]
/B [24 0/24]
24V-INT1 [24]
24V-INT1 [24]
A [24 0/24]
B [24 0/24]
GND [0]
→→→
→
t
6
M18
Registration
Motor
-2-3-4-5-6
CN606-1
-B10
Sensor
CN625-1
1
21L2
32L3
G
Right Front Door
Safety Switch
(SW3)
-9
[24] +24V
GND [0]
+5V [5]
[0~5]
[5]
s
-B6
-B7
-B8
-B9
S6
S8
Sensor
Toner Hopper
CN4-1
[ 24] Heater Relay ON
+12V [12]
-B5
Toner Density
T1
ACIN [240 ~ 230]
ACIN [240 ~ 230]
T2
AC Drive Board
[ 240 or 230]s
-2
[ 240 or 230]s
-3
[ 240 or 230]s
-443L4
[ 240 or 230]s
-2-3-4-5-6-7-8
[0/5] Fusing Zero Cross
[ 24] Power Relay ON
[ 24] Fusing Lamp 3
[ 24] Fusing Lamp 2
[ 24] Fusing Lamp 1
[24] +24V-INT1
ttttt
Speed [0: High, 5: Low]
ON [ 24]
Lock [ ]
t
CNT
[24]
-A10
-B1
-B2
-B3
-B4
M23
M31
Motor
Polygonal Mirror Motor
Cooling Fan Motor
(PCB 10)
Sensor
CN604-1
-B9
[0] GND
[5] +5V
Speed [0: High, 5: Low]
ON [ 24]
ON [ 24]
+24 [24]
t
t
-A6
-A7
-A8
-A9
M26
Drum Cooling Fan
Motor
Exhaust Fan
S9
[24]
Toner Supply Motor
-B8
[0, 5 0/5]
→
+24 [24]
-A5
Heater Relay ON [ 24]
+24V-INT1 [24]
Toner Supply Motor
M5
321
1
1
-B6
-B7
[24] +24V
[0] GND
ON [ 24]
t
-A4
1
Key Counter
(Option)
+24 [24]
-A3
Fusing Lamp 1 [ 24]
Fusing Lamp 2 [ 24]
Cooling Fan 2 Motor
M28
-B4
-B5
[ 24]
[ 24]
Set [ 5]
t
-A2
2
Power Relay ON [ 24]
Fusing Lamp 3 [ 24]
ttttt
Development Unit
Cooling Fan 1 Motor
M27
-B2
-B3
[ 24]
[24] +24V
ttt
Speed [0: High, 5: Low]
GND [0]
CN610-A1
-B13
432
1
Motor
Fusing Zero Cross [0/5]
Development Unit
21212
21212
-B1
[24] +24V
ON [ 24]
t
-B12
M32
Steam Removal Fan
[ 240 or 230]
s
[ 240 or 230]
s
[ 240 or 230]
s
[ 240 or 230]
s
[ 240 or 230]
s
[ 240 or 230]
s
[ 240 or 230]
s
[ 240 or 230]
s
[ 240 or 230]
s
[ 240 or 230]
s
+24V [24]
GND [0]
[0]
CN3-11
-10
-9-8-7-6-5-4-3-2-1
2
1
Not Used
MC
2
Toner Supply Roller Clutch
+24V [24]
+24V [24]
[ 24]
t
-B10
-B11
-B9
M30
Duplex Cooling Fan
Motor
1
-A12
[0: High, 5: Low] Speed
-B8
Motor
1
1
5
2
6
3
7
12312
Fusing/Duplex Motor
43214321432
CN613-A1
[ 5] Over Load
t
1
5
2
6
3
7
CN701-1
CN712-13
CN716-1
CN717-1
CN716-2
CN712-6
CN716-3
CN717-9
CN716-4
Toner Near End
Sensor
S16
3
15
-14
-15
[5]
[0] GND
s
-13
[5] +5V
-3
1
2
1
2
1
2
1
2
1
2
Bottole Sensor
-12
[0] GND
Toner Collection
S14
-11
[5]Set
t
2
1
2
1
2
1
2
LCT Heater (option)
[ 240 or 230]
s
[ 240 or 230]
s
[5] +5V
[24] +24V
[24] +24V-INT1
[24] +24V-INT2
[0] GND (5V)
[0] GND (24V)
[0] GND (24V)
[0] GND (24V)
PSU Cooling Fan 1
M33
PSU Cooling Fan 2
M34
Clutch
Toner Overflow
Sensor
1
S15
12312
2
1011121314
987654321
-10
-9
[ 24]
[0] GND
[0, 5]
[5] +5V
[5] +5V
t
H2
H1
H3
H4
Motor
Toner Supply Coil
M6
MC
1
121110
[0] GND
[24] +24V
[24] +24V
Drum Heater (option)
Optics Anti-Condensation
Heater (option)
Tray Heater 1 (option)
Tray Heater 2 (option)
24V-INT1 [24]
GND [0]
CN717-2
CN717-10
Right Front Door
Safety Switch 1
(SW2)
Safety Switch 1
Left Front Door
(SW6)
Toner Bank Unit
Lower Toner Bottle
Motor
M9
2
1
432121321321321
10
123456789
151413
CN624-1
-B10
-B9
-2-3-4-5-6-7-8
[ 24]
[24] +24V
[ 5] Over Load
[5]ON
t
t
t
PSU (PCB3)
+38V [38]
+24V [24]
+24V [24]
+5VE [5]
+5V [5]
CN712-10
CN711-6
CN713-4
CN717-4
CN717-5
Lower Bottle Cap
Motor
Lower Bottle Inner Cap
Sensor
Lower Toner Bottle
Sensor
M10
S13
S11
121
-B2
-B3
-B4
-B5
-B6
-B7
-B8
[5]
[5] +5V
[0] GND
[5]
[5] +5V
[ 24] +
[ 24] –
t
stt
–12V [–12]
+12V [12]
CN715-3
CN714-3
Motor
-B1
[0] GND
GND (38V) [0]
GND (24V) [0]
GND (24V) [0]
CN713-3
CN717-12
CN717-13
Upper Toner Bottle
Motor
M7
M8
2
-A10
-A8
-A9
[ 24] –
[ 24]
[24] +24V
t
Upper Bottle Cap
GND (5VE) [0]
CN711-2
121
-A7
[ 24] +
GND (5V) [0]
CN712-3
Sensor
-A6
[5] +5V
Energy Save End [ 5]t
GND (+12V) [0]
GND (–12V) [0]
CN715-1
CN714-9
Upper Bottle Inner Cap
Upper Toner Bottle
Sensor
S12
S10
98765432110987654321
-A2
-A3
-A4
-A5
[5]
[5] +5V
[0] GND
[5]
t
stt
GND (20V) [0]
GND (5VE) [0]
GND (5VE) [0]
GND (5V) [0]
GND (38V) [0]
GND (24V) [0]
GND (5V) [0]
–12V [–12]
–12V [–12]
GND (+12V) [0]
GND (5V) [0]
GND (+24V) [0]
GND (5VE) [0]
GND (12V) [0]
GND (5V) [0]
GND (12V) [0]
GND (5V) [0]
3213212121321321212
12345678910123456789
10
CN623-A1
[0] GND
+24V [24]
+5VE [5]
+5VE [5]
+5V [5]
+12V [12]
+38V [38]
+24V [24]
+5V [5]
+12V [12]
+12V [12]
+5V [5]
+24V [24]
5VE [5]
+12V [12]
+5V [5]
+12V [12]
+5V [5]
-14
-15
[24] +24V
[24] +24V
-13
[38] +38V
-12
[5] +5VE
-11
[5] +5V
CN717-14
CN717-6
CN711-4
CN711-5
CN711-8
CN711-9
CN712-1
CN712-8
CN714-4
CN711-1
CN713-2
CN713-1
CN717-16
CN717-8
CN712-9
CN712-2
CN714-5
CN715-4
CN714-6
CN712-14
CN715-5
CN714-10
CN712-7
CN717-15
CN717-7
CN711-7
CN711-3
CN714-2
CN714-8
CN712-4
CN712-11
CN714-1
CN714-7
CN712-5
CN712-12
-10
[–12] –12V
[12] +12V
[0] GND (24V)
[0] GND (24V)
[0] GND (38V)
[0] GND (5VE)
1
2
3
4
5
To SICU
6
7
8
9
10
1
2
3
4
5
To MC U
6
7
8
1
2
3
4
To LC B
5
6
7
1
2
1
2
3
4
1
2
3
4
CN601-1
-2-3-4-5-6-7-9
[0] GND (–12V)
[0] GND (+12V)
[0] GND (5V)
Mother Board
(Printer Controller)
HDD 1
HDD 2
Option Counter
(Japan only)
To SICU (1)
To SICU (2)
10
9
8
7
6
5
4
3
2
1
10
9
8
7
6
5
4
3
2
1
CN612-A1
-A10
-B10
CN617-1
CN616-A1
-A10
-B10
Circuit Braker
-A2
-A3
-A4
-A5
-A6
-A7
-A8
-A9
-B1
-B2
-B3
-B4
-B5
-B6
-B7
-B8
-B9
-2
-3
-4
-5
-6
TXD (SICU)
GND
-A2
RXD (SICU)
-A3
GND
-A4
TXD (SICU)
-A5
GND
-A6
RXD (SICU)
-A7
GND
-A8
RXD (Option Counter)
-A9
TXD (Option Counter)
S
-B1
A1
-B2
M1
-B3
M2
-B4
CSS Ready
-B5
CSS Reset
-B6
XFGATE
-B7
GND
-B8
RXD (CSS)
-B9
TXD (CSS)
Power Relay
Heater Relay
CN2-1
-7
-2
-8
-3
-9
-4
-10
-5
-11
CN5-1
-5
[200 or 230]
[200 or 230]
-2
-6
-3
-7
CN3-1
Main Switch
-3
(SW1)
123
3
Development Motor
Drum Motor
M12
M3
M4
-A10
-A11
-A9
[ 5] Over Load
[ 24] Clutch ON
[5]ON
t
-A8
[0: High, 5: Low] Speed
-A7
[5]ON
ttt
-A5
-A6
[ 5] Over Load
[0: ccw, 5: cw] Direction
t
-A4
[0: High, 5: Low] Speed
-A2
-A3
N.C.
[5]ON
t
BCU (PCB1)
+24V-INT1 [ 24]
t
M29
Paper Cooling Pipe Fan
Fusing Unit Set [ 5]
Thermistor
+24V [24]
+24V [24]
[ 24]
t
-B6
-B7
TC1
Total Counter
GND [0]
GND [0]
GND [0]
t
-A15
-B1
-B2
-B3
-B4
-B5
15
123412121212312341231231231234123654321
D
F
E C
C7
C7
[5]
t
-A14
S51
Exit Sensor
-A13
123
+24V [24]
GND [0]
+5V [5]
+5V [5]
[ 24]
t
[5]
t
-A10
-A12
-A11
-A8
-A9
1011121314
10111213141516
9
10111213141516
9
S50
1
2
SOL
16
Fusing Exit Sensor
Inverter Gate
Solenoid
GND [0]
+5V [5]
[5]
s
-A5
-A6
-A7
98765432143212121213214321321321321432132112345
S49
Oil Supply/Cleaning
Web End Sensor
Web Motor
Exit Unit Set [ 5]
GND [0]
+5V [5]
[5]
t
t
CN603-A1
-A2
-A3
-A4
151413
121110
123456789
2345678
2345678
2112321123321
1
2
M19
Oil Supply/Cleaning
FB Charge Current
FB Grid Voltage
PWM Charge
PWM Grid
PP1
Charge/Bias/Grid
Power Pack
Drum Earth [ 24]
+24V-INT1 [24]
t
[0]
CN614-1
-2-3-4-5-6-7-8
123456789
[–: Low, +: High]
FB Bias Voltage
PWM Bias
[0]
-10
-11
-9
10
11
Drum Unit Set [ 5]
Potential Sensor
ID Sensor
LED [ 5]
+12V [12]
GND [0]
+5V [5]
t
t
[0]
-10
-12
-11
S5
Drum Potential
-5-6-7-8-9
123
123
S7
321
ID Sensor
24
24
Sensor
121516171819202122
121516171819202122
Cleaner Motor
Charge Corona Wire
+24V [24]
GND [0]
+ [ 24]
– [ 24]
[ 24]
ttt
CN609-1
-2-3-4
13
5
13
234
5
8
8
123
4
1
8
212
1
212
1
212
1
1
2
Quenching Lamp
M11
L5
GB Current
GND [0]
FB Voltage
PWM
PP2
SOL
1
Transfer Belt Lift
Solenoid
Solenoid ON [ 24]
+24V-INT1 [24]
GND [0]
GND [0]
t
CN615-1
-2-3-4-5-6-7-8
12345678234
1234567
1234567
12345678432
1234567
Transfer Power Pack
-B15
/B [24 0/24]
/A [24 0/24]
B [24 0/24]
A [24 0/24]
+24V [24]
+24V [24]
→
-B12
-B13
-B14
-B11
7
M21
Jogger Motor
-B10
→→→
-B9
+24V [24]
-B8
MC6
Clutch
Inverter Exit Roller
[ 24]
t
-B7
+24V [24]
-B6
MC7
Clutch
[ 24]
t
-B5
Duplex Transport
Clutch
+24V [24]
-B4
MC8
Duplex Feed
+24V [24]
[ 24]
t
-B2
-B3
12
Solenoid
Duplex Inverter Gate
[ 24]
[ 24]
-A15
-B1
Solenoid
SOL13SOL
Reverse Roller
+24V [24]
[ 24]
ttt
-A13
-A14
14
Solenoid
+24V [24]
[5]
[5]
s
t
-A10
-A12
-A11
10
12131415313029282726252423222120191817
11
10
12131415313029282726252423222120191817
11
S40
S44
SOL
Duplex Entrance
Sensor
Duplex Jogger HP
Sensor
Inverter Guide Plate
S43
Sensor
AC Line Block Chart
GND (24V) [0]
GND (24V) [0]
GND (24V) [0]
GND (24V) [0]
GND (5V) [0]
GND (5V) [0]
GND (38V) [0]
GND (24V) [0]
GND (24V) [0]
GND (24V) [0]
GND (38V) [0]
GND (38V) [0]
Over Load [ 5]
Speed [0: High, 5: Low]
GND [0]
GND [0]
+5V [5]
[5]
[5]
[5]
t
t
t
-A4
-A5
-A6
-A7
-A8
-A9
321
S42
S41
123
Duplex Transport 1
Sensor
Duplex Transport 2
Sensor
S39
Duplex Transport 3
Sensor
AC Drive Board
N.C.
+24V [24]
+24V [24]
+24V [24]
+24V [24]
+5V [5]
+5V [5]
TXD
GND [0]
RXD
GND [0]
N.C.
+38V [38]
+24V [24]
+24V [24]
+24V [24]
+38V [38]
+38V [38]
TXD
GND [0]
RXD
GND [0]
+5VE [5]
GND [0]
TXD
RXD
GND [0]
+5VE [5]
N.C.
GND [0]
TXD
RXD
GND [0]
N.C.
N.C.
GND [0]
TXD
RXD
GND [0]
N.C.
+24V [24]
[ 24]
t
GND [0]
[5]
t
+5V [5]
GND [0]
[5]
t
+5V [5]
[5]
t
GND [0]
+5V [5]
+24V [24]
[ 24]
t
GND [0]
[5]
s
+5V [5]
+24V [24]
[ 24]
t
t
N.C.
ON [ 5]
t
Set [ 5]
+5V [5]
[5]
t
t
CN611-A1
-A2
-A3
123456789
123456789
32112312312312312321211212121212346
321
Duplex Inverter
Energy Save End
Main Switch
CN626-A1
-A2
-A3
-A4
-A5
-A6
-A7
-A8
-A9
-B1
-B2
-B3
-B4
-B5
-B6
-B7
-B8
-B9
CN627-A1
-A2
-A3
-A4
-A5
-A6
-A7
-A8
-B1
-B2
-B3
-B4
-B5
-B6
-B7
-B8
CN619-1
CN620-1
CN621-1
CN602-A1
-A2
-A3
-A4
-A5
-A6
-A7
-A8
-A9
-A10
-A11
-B1
-B2
-B3
-B4
-B5
-B6
-B7
-B8
-B9
-B10
-B11
PSU
Fusing Lamp
Optional Heater
8
7
6
5
4
3
2
1
9
Finisher
8
7
6
5
4
3
2
8
7
6
5
4
3
2
1
ARDF
9
8
7
6
5
4
3
2
-2
-3
-4
CSS 3
-5
-6
-2
-3
-4
CSS 2
-5
-6
-2
-3
CSS 1
-4
-5
-6
11
1
2
10
2
9
3
8
4
7
5
6
6
5
7
4
8
3
9
2
10
1
11
7
1
6
2
5
3
4
4
3
5
2
6
1
7
4
3
2
1
Relay Motor
MC
1
13
3
2
S46
1
3
2
S45
1
3
2
S47
1
2
SOL
1
3
2
S48
1
2
MC
1
M14
Signal Table
AC Line
DC Line
Puls
Signal Direction
Signal Direction
< >
Active High
s
t
Active Low
Voltage
[ ]
1 7 143 9 166 12 19 222 8 155 11 18 214 10 1713 20 23
LCT Relay
Clutch
Relay Sensor
LCT Relay
Sensor
Registration Sensor
Guide Plate Solenoid
15
Guide Plate Position
Sensor
Upper Relay Clutch
12
3
2
1
Others
5VE
A
B
C
D
E
F
G
H
I
J
K
L
B
A
H6
M
N
O
P
COPIER (A294) ELECTRICAL COMPONENT LAYOUT (1/2)
22
21
20
19
18
17
1
A294S153.WMF
2
3
4
5
6
24
7
25
26
45
44
31
32
33
34 35
36
37
38
23
8
9
43
155
10
16
46
15
14
47
11
12
13
30
29
28
A294S104.WMF
50
4948
27
42
41
737271706968
74
75
76
40
39
A294S206.WMF
157
67
51
77
156
96
97
78
79
66
52
53
80
65
64
63
62
61
60
59
58
57
A294S105.WMF
56
55
54
122
123
124
125
126 127 128
95
94
93
92
91
90
A294S107.WMF
89
88
87
85
86
81
82
83
84
149
150
121
120
100
9998
101
102
151
148
103
104
147
129
119
118
117
116
115
A294S108.WMF
114
112 111 110
113
109
108
105
106
107
146
145
144
143
142
141
140
139
138
A294S109.WMF
137
136
135
134
130
131
132
133
152
153
154
A294S110.WMF
Loading...