Ricoh G133 - Page 314

Electrical Component Defects
G133 4-98 SM
No.
Sensor Name/
Sensor Board Name
Active CN Condition Symptom
Open SC291/292
S2
Shutter Positioning
Sensor - Close
H CN266/7
Shorted SC290
Open
Toner end cannot be
detected.
S31
S32
S33
S34
Toner End Sensor - Y
Toner End Sensor - C
Toner End Sensor -
M
Toner End Sensor - K
L
CN236/B3
CN236/B6
CN236/B9
CN236/
B12
Shorted
Toner end is detected
when there is enough
toner.
S52
Image Transfer Belt
Rotation Sensor
H/L CN223/1
Open/
Shorted
SC443
Open Jam A (Jam3, 11)
S24
Vertical Transport
Sensor 1
L CN212/A7
Shorted Jam A, B (Jam1)
Open
Paper end is not
detected when there is
no paper in the paper
tray.
S25
S29
Paper End
Sensor 1, 2
L
CN212/
A10, B10
Shorted
Paper end is detected
when there is paper in
the paper tray.
S26
S30
Paper Lift Sensor 1, 2 H
CN212/
A13, B13
Open/
Shorted
SC501, SC502
Open Jam A (Jam4, 12)
S28
Vertical Transport
Sensor 2
L CN212/B7
Shorted Jam A, B (Jam1)
S19
S20
Tray 1 Paper Height
Sensor 1, 2
L
CN209/
B2, B5
Open/
Shorted
Remaining paper
volume on the LCD is
wrong.
S21 Tray 2 Paper Height L CN209/ Open/ Remaining paper