Electrical Component Defects; Sensors - Ricoh G104 Service Manual

Electrical Component Defects

4.4 ELECTRICAL COMPONENT DEFECTS

4.4.1 SENSORS

Sensor Name/
No.
Sensor Board Name
Color Drum Gear
1
Position Sensor
Black Drum Gear
2
Position Sensor
Toner End Sensor (K)
Toner End Sensor (M)
3
Toner End Sensor (C)
Toner End Sensor (Y)
Transfer Belt Contact
4
Sensor
Transfer Roller
5
Contact Sensor
TD Sensor (K)
TD Sensor (M)
6
TD Sensor (C)
TD Sensor (Y)
8 Transfer Belt Rotation
10 Front Door Sensor
Waste Toner Overflow
11
Sensor
G160/G161
CÓPIA NÃO CONTROLADA
CN No./
Active
Pin No.
H CN222/2
H CN222/5
CN222/8
CN230/13
L
CN230/26
CN230/29
H CN222/11
L CN222/14
CN222/20
CN225/4
A
CN230/4
CN230/20
L CN222/27
H CN206/1
H CN230/10
4-38
CÓPIA NÃO CONTROLADA
Condition Symptom
Open
SC380
Shorted
Open
SC380
Shorted
Toner end cannot be
Open
detected.
Toner end is detected
Shorted even if there is enough
toner.
Open
SC442
Shorted
Open
SC452
Shorted
Open SC368 (K)
SC369 (M)
SC370 (C)
Shorted
SC371 (Y)
Open Automatic line position
adjustment error:
Transfer belt unit
speed cannot be
Shorted
detected, causing
image skew.
"Close Front/Left
Open
Cover" is displayed.
Front cover open
Shorted
cannot be detected.
Waste Toner near full
Open
is indicated.
SM