Ricoh MPC2000
Troubleshooting. Electrical Component Defects 1
Sensors
Note: The CN numbers in the following table are the connector numbers on the BICU.
| No. | Sensor Name/ Sensor Board Name | Active | CN | Condition | Symptom |
|---|---|---|---|---|---|
| SW01 | Right Cover Open Switch | L | CN211/35 | Open | "Open Cover" is displayed |
| Shorted | Right cover open cannot be detected. |
||||
| S01 | ID Sensor | A | CN213 | Open/ Shorted |
SC400 |
| S02 | Registration Sensor | L | CN212/2 | Open | Jam A (Jam8, 17) |
| Shorted | Jam A, B (Jam1) | ||||
| S03 | Drum Gear Position Sensor-K |
H | CN212/5 | Open/ Shorted |
SC380 |
| S04 | Drum Gear Position Sensor-CMY |
H | CN212/8 | Open/ Shorted |
SC380 |
| S05 | Shutter Positioning Sensor - Open |
H | CN214/26 | Open | SC296 |
| Shorted | SC293 | ||||
| S06 | Shutter Positioning Sensor - Close |
H | CN214/29 | Open | SC296 |
| Shorted | SC290 | ||||
| 507 508 509 510 |
Toner End Sensor - Y Toner End Sensor - C Toner End Sensor - M Toner End Sensor - K |
L | CN232/A16 CN232/B1 CN232/B4 CN232/B7 |
Open | Toner end cannot be detected. |
| Shorted | Toner end is detected when there is enough toner. | ||||
| S11 | Image Transfer Belt Rotation Sensor |
H/L | CN233/15 | Open/ Shorted |
SC443 |
| S12 | Paper Feed Sensor 1 | L | CN281/2 | Open | Jam A (Jam3, 11) |
| Shorted | Jam A, B (Jam1) | ||||
| S13 S16 |
Paper End Sensor 1,2 |
L | CN281/5, 14 |
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. |
||||
| S14 S17 |
Paper Lift Sensor 1,2 | H | CN281/8, 17 |
Open/ Shorted |
SC501, SC502 |
| S15 | Paper Feed Sensor 2 | L | CN281/11 | Open | Jam A (Jam4, 12) |
| Shorted | Jam A, B (Jam1) | ||||
| S18 S19 |
Tray 1 Paper Height Sensor 1,2 | L | C N2 82/2, 5 | Open/ Shorted |
Remaining paper volume on the LCD is wrong. |
| SW02 | T ray 1 Set Switch | L | CN282/17 | Open | Tray 1 is not detected when tray 1 is set. |
| Shorted | Tray 1 is detected when tray 1 is not set. |
||||
| S22 | By-pass Paper Size Sensor | L | CN283/A1, A2, A4, A5 |
Open/ Shorted |
Paper size error |
| S23 | By-pass Paper Detection Sensor | L | CN283/A7 | Open | Paper on the by-pass tray is not detected when paper is set. |
| Shorted | Paper on the by-pass tray is detected when paper is not set. |
||||
| S24 | Fusing Entrance Sensor |
L | CN283/B6 | Open | Jam C (Jam 18) |
| Shorted | Jam C (Jam 1) | ||||
| S25 | Duplex Entrance Sensor |
L | CN283/B9 | Open | Jam Z (Jam 27) |
| Shorted | Jam Z (Jam 1) | ||||
| S26 | Duplex Exit Sensor | L | CN283/B12 | Open | Jam Z (Jam 25) |
| Shorted | Jam Z (Jam 1) | ||||
| S27 | TD Sensor - K | A | CN217/7 | Open/ Shorted |
SC372 |
| S28 | TD Sensor - C | A | CN217/15 | Open/ Shorted |
SC374 |
| S29 | TD Sensor - Y | A | CN217/23 | Open/ Shorted |
SC375 |
| S30 | TD Sensor - M | A | CN217/31 | Open/ Shorted |
SC373 |
| S31 | Fusing Exit Sensor | L | CN253/2 | Open | Jam C (Jam 19) |
| Shorted | Jam C (Jam 1) | ||||
| S32 | Waste Toner Sensor | H | CN251/A2 | Open | Waste toner near full indicated when it is not near full. |
| Shorted | Waste toner near full cannot be detected when the waste toner bottle is nearly full. |