Ricoh D017 MP2550B R-C5
Troubleshooting. Electrical Component Defects 1
Sensors
| Component | CN | PCB | State | Description |
|---|---|---|---|---|
| 1st Bottom Fence Sensor 1 | 309-1 | BCU | Open | The CPU cannot detect the paper size properly. |
| Shorted | ||||
| 1st Bottom Fence Sensor 2 | 309-4 | BCU | Open | The CPU cannot detect the paper size properly. |
| Shorted | ||||
| 1st Bottom Fence Sensor 3 | 309-7 | BCU | Open | The CPU cannot detect the paper size properly. |
| Shorted | ||||
| 1st Paper End Sensor | 307-1 | BCU | Open | The Paper End indicator lights even if paper is placed in the 1st paper tray. |
| Shorted | The Paper End indicator does not light even if there is no paper in the 1st paper tray. | |||
| 1st Paper Height Sensor 1 | 310-1 | BCU | Open | The CPU cannot determine the paper near-end condition properly. |
| Shorted | ||||
| 1st Paper Height Sensor 2 | 310-4 | BCU | Open | The CPU cannot determine the paper near-end condition properly. |
| Shorted | ||||
| 1st Paper Lift Sensor | 306-1 | BCU | Open | SC501 displays. |
| Shorted | Paper jam will occur during copying. | |||
| 1st Side Fence Sensor | 309-10 | BCU | Open | The CPU cannot detect the paper size properly. |
| Shorted | ||||
| 1st Tray Detect Sensor | 309-13 | BCU | Open | The CPU cannot detect the paper size properly. |
| Shorted | ||||
| 2nd Bottom Fence Sensor 3 | 309-21 | BCU | Open | The CPU cannot detect the paper |
| Shorted | size properly. | |||
| 2nd Bottom Fence Sensor 1 | 309-15 | BCU | Open | The CPU cannot detect the paper |
| Shorted | size properly. | |||
| 2nd Bottom Fence Sensor 2 | 309-18 | BCU | Open | The CPU cannot detect the paper |
| Shorted | size properly. | |||
| 2nd Paper End Sensor | 308-1 | BCU | Open | The Paper End indicator lights even if paper is placed in the 2nd paper tray. |
| Shorted | The Paper End indicator does not light even if there is no paper in the 2nd paper tray. | |||
| 2nd Paper Height Sensor 1 | 310-7 | BCU | Open | The CPU cannot determine the paper near-end condition properly. |
| Shorted | ||||
| 2nd Paper Height Sensor 2 | 310-10 | BCU | Open | The CPU cannot determine the paper near-end condition properly. |
| Shorted | ||||
| 2nd Paper Lift Sensor | 306-2 | BCU | Open | SC502 displays. |
| Shorted | Paper jam will occur during copying. | |||
| 2nd Side Fence Sensor | 309-24 | BCU | Open | The CPU cannot detect the paper |
| Shorted | size properly. | |||
| 2nd Tray Detect Sensor | 309-27 | BCU | Open | The CPU cannot detect the paper |
| Shorted | size properly. | |||
| APS Sensor 1: Original Width | 223-1 | SIO | Open | The CPU cannot detect the original size properly. APS and ARE do not function correctly. |
| Shorted | ||||
| APS Sensor 2: Original Width | 223-4 | SIO | Open | The CPU cannot detect the original size properly. APS and ARE do not function correctly. |
| Shorted | ||||
| APS Sensor 3: Original Length | 223-7 | SIO | Open | The CPU cannot detect the original size properly. APS and ARE do not function correctly. |
| Shorted | ||||
| APS Sensor 4: Original Length | 223-10 | SIO | Open | The CPU cannot detect the original size properly. APS and ARE do not function correctly. |
| Shorted | ||||
| APS Sensor 5: Original Length | 223-13 | SIO | Open | The CPU cannot detect the original size properly. APS and ARE do not function correctly. |
| Shorted | ||||
| Bridge Open Sensor (Paper Exit) | 701-3 | CKB | Open | "Open Cover" is displayed even the cover is closed. |
| Shorted | "Open Cover" is not displayed even the cover is open. | |||
| Bridge Open Sensor (Relay) | 701-1 | CKB | Open | "Open Cover" is displayed even the cover is closed. |
| Shorted | "Open Cover" is not displayed even the cover is open. | |||
| Duplex Unit Entrance Sensor |
340-10 | BCU | Open | The Paper Jam indicator will light whenever a copy is made. |
| Shorted | The Paper Jam indicator lights even if there is no paper. | |||
| Duplex Unit Exit Sensor | 859-1 | BCU | Open | The Paper Jam indicator will light whenever a copy is made. |
| Shorted | The Paper Jam indicator lights even if there is no paper. | |||
| Duplex Unit Set Sensor | 859-9 | BCU | Open | The Cover Open indicator is not lit even if the right upper cover is opened. |
| Shorted | The Cover Open indicator is lit even if the right upper cover is closed. | |||
| Exit Sensor | 703-4 | CKB | Open | The Paper Jam indicator will light whenever a copy is made. |
| Shorted | The Paper Jam indicator lights even if there is no paper. |