Ricoh M257 SPC440DN Z-P2
Troubleshooting. Electrical Component Defects 1
Sensors
No. | Sensor Name/ Sensor Board Name | Active | CN No./ Pin No. | Condition | Symptom |
---|---|---|---|---|---|
1 | Drum Phase Sensor | H | CN108/2 | Open | SC381 |
(CMY) | Shorted | ||||
2 | Drum Phase Sensor | H | CN107/2 | Open | SC380 |
(K) | Shorted | ||||
3 | Toner End Sensor(K) | L | CN115/18 | Open | Toner end cannot be detected. |
Toner End Sensor (M) | CN115/21 | ||||
Toner End Sensor (C) Toner End Sensor (Y) |
CN115/24 CN115/27 |
Shorted | Toner end is detected. | ||
4 | Transfer Belt Contact Sensor | L | CN128/21 | Open | SC442 |
Shorted | |||||
5 | Paper Transfer Roller Contact Sensor | L | CN128/8 | Open | SC452 |
Shorted | |||||
6 | TD Sensor (K) | A | CN108/19 | Open | SC372 (K) |
TD Sensor (M) | CN109/17 | Shorted | SC373 (M) | ||
TD Sensor (C) | CN108/8 | SC374(C) | |||
TD Sensor (Y) | CN109/25 | SC375 (Y) | |||
7 | ITB Rotation Sensor | A | CN128/18 | Open | • Automatic line position adjustment error: Transfer belt unit speed cannot be detected, causing image skew. |
Shorted | |||||
• SC285 | |||||
8 | Front Door Sensor | L | CN104/1 | Open | "Cover Open" is displayed. |
Shorted | Front cover open cannot be detected. | ||||
9 | Waste Toner Bottle Full Sensor |
H | CN118/19 | Open | Waste Toner near full is indicated. |
Shorted | Waste toner full cannot be detected. | ||||
10 | Waste Toner Bottle Set Sensor |
L | CN118/16 | Open | "Check the Left Cover is closed and the Waste Toner Bottle is set correctly" is displayed. |
Shorted |
|
||||
11 | Temperature/ Humidity Sensor |
A | CN127/1, 3 | Open |
|
Shorted | |||||
12 | Paper Size Sensor | A | CN116/ A11, A12, A13 |
Open | Paper size error |
Shorted | |||||
13 | Tray1 Set Sensor | L | CN116/A15 | Open | Tray 1 is not detected. |
Shorted | Tray 1 is detected. |