Ricoh D025 MPC3300 AT-C2
Troubleshooting. Electrical Component Defects 2
• The CN numbers in the following table are the connector numbers on the IOB.
Sensors
| No. | Sensor Name/ Sensor Board Name | Active | CN | Condition | Symptom |
|---|---|---|---|---|---|
| S23 | Vertical Transport Sensor 2 |
L | CN230/B7 | Open | Jam A (Jam4, 12) |
| Shorted | Jam A, B (Jam1) | ||||
| 515 516 |
Tray 1 Paper Height Sensor 1, 2 | L | CN224/ B2, B5 |
Open/ Shorted |
Remaining paper volume on the LCD is wrong. |
| 517 518 |
Tray 2 Paper Height Sensor 1, 2 | L | CN224/ B10, B13 |
Open/ Shorted |
Remaining paper volume on the LCD is wrong. |
| SW4 | Tray 1 Set Switch | L | CN224/A9 | Open | Tray 1 is not detected when tray 1 is set. |
| Shorted | Tray 1 is detected when tray 1 is not set. |
||||
| S12 | By-pass Paper Size Sensor |
L | CN232/ B16, B17, B19, B20 |
Open/ Shorted |
Paper size error |
| SW2 | By-pass Paper Detection Sensor | L | CN232/ A15 |
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. |
||||
| S11 | By-pass Paper Length Sensor | L | CN232/ B12 |
Open | Paper size error |
| Shorted | |||||
| S9 | Fusing Entrance Sensor | L | CN232/B6 | Open | Jam C (Jam 18) |
| Shorted | Jam C (Jam 1) | ||||
| S7 | Duplex Entrance Sensor | L | CN232/A8 | Open | Jam Z (Jam 26/27) |
| Shorted | Jam Z (Jam 1) | ||||
| S8 | Duplex Exit Sensor | L | CN232/ A11 |
Open | Jam Z (Jam 25) |
| Shorted | Jam Z (Jam 1) | ||||
S33 |
TD Sensor - K |
A |
CN227/A7 |
Open/ |
SC372 |
S34 |
TD Sensor - M |
A |
CN227/ |
Open/ |
SC373 |
S35 |
TD Sensor - C |
A |
CN227/B7 |
Open/ |
SC374 |
S36 |
TD Sensor - Y |
A |
CN227/ |
Open/ |
SC375 |
S4 |
Fusing Exit Sensor |
L |
CN204/12 |
Open |
Jam C (Jam 19) |
Shorted |
Jam C (Jam 1) |
||||
S14 |
Waste Toner Sensor |
H |
CN224/A5 |
Open |
Waste toner near full indicated when it is not near |
Shorted |
Waste toner near full cannot be detected when the waste toner bottle is nearly full. |
||||
SW4 |
Waste Toner Bottle Set |
L |
CN224/A7 |
Open |
Waste toner bottle is not detected when the waste |
Shorted |
Waste toner bottle is |
||||
SW6 |
Tray 2 Paper Size Switch |
L |
CN224/ |
Open/ |
Paper size error |