Electrical Component Defects; Sensors - Ricoh M022 Service Manual

Electrical Component Defects

Sensors

Sensor Name/
No.
Sensor Board Name
Drum Phase Sensor
1
(CMY)
2 Drum Phase Sensor (K)
Toner End Sensor (K)
Toner End Sensor (M)
3
Toner End Sensor (C)
Toner End Sensor (Y)
Transfer Belt Contact
4
Sensor
Paper Transfer Roller
5
Contact Sensor
TD Sensor (K)
TD Sensor (M)
6
TD Sensor (C)
TD Sensor (Y)
7 ITB Rotation Sensor
CÓPIA NÃO CONTROLADA
CN No./
Active
Pin No.
H CN1/2
H CN107/2
CN115/18
CN115/21
L
CN115/24
CN115/27
L CN128/21
L CN128/8
CN108/19
CN109/17
A
CN108/8
CN109/25
A CN128/18
CÓPIA NÃO CONTROLADA
Electrical Component Defects
Condition Symptom
Open
SC381
Shorted
Open
SC380
Shorted
Toner end cannot be
Open
detected.
Shorted Toner end is detected.
Open
SC442
Shorted
Open
SC452
Shorted
Open SC372 (K)
SC373 (M)
SC374 (C)
Shorted
SC375 (Y)
Open • Automatic line
position adjustment
error: Transfer belt
unit speed cannot
be detected,
Shorted
causing image
skew.
• SC285
6
729