Ricoh G188 Service Manual page 404

Electrical Component Defects
Sensor Name/
No.
Sensor Board Name
and K
ID Sensor: Rear
S12 Registration Sensor
Drum Gear Position
S30
Sensor-K
Drum Gear Position
S31
Sensor-M
Drum Gear Position
S32
Sensor-C
Drum Gear Position
S33
Sensor-Y
Toner End Sensor - K
S26
Toner End Sensor - Y
S27
Toner End Sensor - C
S28
Toner End Sensor -
S29
M
Image Transfer Belt
S34
Rotation Sensor
Vertical Transport
S19
Sensor 1
S20 Paper End
S24 Sensor 1, 2
G188/G189
Active CN
A CN211/3
L CN224/A2
H CN222/A2
H CN222/ A5
H CN222/ A8
H CN222/ A11
CN207/A1
CN207/B9
CN207/
L
B12
CN207/
B15
H/L CN208/11
L CN230/A7
CN230/
L
A10, B10
7-2
Condition Symptom
Shorted
Open/
SC258
Shorted
Open Jam A (Jam8, 17)
Shorted Jam A, B (Jam1)
Open/
SC380/SC396
Shorted
Open/
SC380/SC397
Shorted
Open/
SC380/SC398
Shorted
Open/
SC380/SC399
Shorted
Toner end cannot be
Open
detected.
Toner end is detected
Shorted when there is enough
toner.
Open/
SC443
Shorted
Open Jam A (Jam3, 11)
Shorted Jam A, B (Jam1)
Paper end is not
detected when there is
Open
no paper in the paper
tray.
SM Appendix