Ricoh MPC3501
Troubleshooting. Electrical Component Defects 1
Sensors
Note: • The CN numbers in the following table are the connector numbers on the IOB.
No. | Sensor Name/ Sensor Board Name | Active | CN | Condition | Symptom |
---|---|---|---|---|---|
Open | "Open Cover" is displayed. | ||||
SW1 | Right Door Open Switch | L | CN204/1 | Shorted | "Open cover" cannot be detected. |
Open | "Open Cover" is displayed. | ||||
S9 | Duplex Door | L | CN232/B9 | Shorted | "Open cover" cannot be detected. |
ID Sensor: M | A | CN211/ 7, 11 |
Open/ Shorted |
||
ID Sensor: C | A | CN211/ 8, 12 |
Open/ Shorted |
SC400 | |
S1 | ID Sensor: Y | A | CN211/ 9, 13 |
Open/ Shorted |
|
ID Sensor: Front | A | CN211/1 | Open/ Shorted |
SC258 | |
ID Sensor: Center and K | A | CN211/2 | Open/ Shorted |
SC400 / SC258 | |
ID Sensor: Rear | A | CN211/3 | Open/ Shorted |
SC258 | |
S12 | Registration Sensor | L | CN224/A2 | Open | Jam A (Jam8, 17) |
Shorted | Jam A, B (Jam1) | ||||
S28 | Drum Gear Position Sensor-K |
H | CN222/A2 | Open/ Shorted |
SC380/SC396 |
S29 | Drum Gear Position Sensor-M |
H | CN222/ A5 | Open/ Shorted |
SC381/SC397 |
S30 | Drum Gear Position Sensor-C |
H | CN222/ A8 | Open/ Shorted |
SC382/SC398 |
S31 | Drum Gear Position Sensor-Y |
H | CN222/ A11 | Open/ Shorted |
SC383/SC399 |
S24 S25 S26 S27 |
Toner End Sensor - K Toner End Sensor - Y Toner End Sensor - C Toner End Sensor - M |
L | CN207/A1 CN207/B9 CN207/ B12 CN207/ B15 |
Open | Toner end cannot be detected. |
Shorted | Toner end is detected when there is enough toner. | ||||
S32 | Image Transfer Belt Rotation Sensor | H/L | CN208/11 | Open/ Shorted |
SC443 |
S18 | Vertical Transport Sensor 1 |
L | CN230/A7 | Open | Jam A (Jam3, 11) |
Shorted | Jam A, B (Jam1) | ||||
S21 S24 |
Paper End Sensor 1, 2 |
L | CN230/ A10, B10 |
Open | Paper end is not detected when there is no paper in the paper tray. |
Shorted | Paper end is detected when there is paper in the paper tray. | ||||
S20 S23 |
Paper Lift Sensor 1,2 | H | CN230/ A13, B13 |
Open/ Shorted |
SC501, SC502 |
S21 | Vertical Transport Sensor 2 |
L | CN230/B7 | Open | Jam A (Jam4, 12) |
Shorted | Jam A, B (Jam1) |