Electrical Component Defects - Ricoh B230 Service Manual

4.7

ELECTRICAL COMPONENT DEFECTS

4.7.1 SENSORS
The CN numbers in the following table are the connector numbers on the BICU.
Sensor Name/
No.
Sensor Board Name
Right Cover Open
SW01
Switch
S01 ID Sensor
S02 Registration Sensor
Drum Gear Position
S03
Sensor-K
Drum Gear Position
S04
Sensor-CMY
Shutter Positioning
S05
Sensor - Open
Shutter Positioning
S06
Sensor - Close
S07 Toner End Sensor - Y
S08 Toner End Sensor - C
S09 Toner End Sensor -
S10 M
SM
Active CN Condition
Open
L CN211/35
Shorted
Open/
A CN213
Shorted
Open
L CN212/2
Shorted
Open/
H CN212/5
Shorted
Open/
H CN212/8
Shorted
Open
H CN214/26
Shorted
Open
H CN214/29
Shorted
CN232/A16
Open
CN232/B1
L
CN232/B4
Shorted
CN232/B7
4-119
Symptom
"Open Cover" is
displayed
Right cover open
cannot be detected.
SC400
Jam A (Jam8, 17)
Jam A, B (Jam1)
SC380
SC380
SC296
SC293
SC296
SC290
Toner end cannot be
detected.
Toner end is detected
when there is enough
B230/B237