Ricoh G188 Service Manual page 405

Sensor Name/
No.
Sensor Board Name
S21
Paper Lift Sensor 1, 2
S25
Vertical Transport
S23
Sensor 2
S14 Tray 1 Paper Height
S15 Sensor 1, 2
S16 Tray 2 Paper Height
S17 Sensor 1, 2
Tray 1 Paper Feed
S18
Sensor
Tray 2 Paper Feed
S22
Sensor
SW4 Tray 1 Set Switch
By-pass Paper Size
S11
Sensor
By-pass Paper
SW2
Detection
SM Appendix
Active CN Condition
Shorted
CN230/ Open/
H
A13, B13 Shorted
Open
L CN230/B7
Shorted
CN224/ Open/
L
B2, B5 Shorted
CN224/ Open/
L
B10, B13 Shorted
Open/
L CN230/A4
Shorted
Open/
L CN230/B4
Shorted
Open
L CN224/A9
Shorted
CN232/
Open/
L B16, B17,
Shorted
B19, B20
CN232/
L
Open
A15
7-3
Electrical Component Defects
Symptom
Paper end is detected
when there is paper in
the paper tray.
SC501, SC502
Jam A (Jam4, 12)
Jam A, B (Jam1)
Remaining paper
volume on the LCD is
wrong.
Remaining paper
volume on the LCD is
wrong.
Jam A, B
Jam A, B
Tray 1 is not detected
when tray 1 is set.
Tray 1 is detected when
tray 1 is not set.
Paper size error
Paper on the by-pass
tray is not detected
when paper is set.
G188/G189