Cassette Paper Feed Error (MP PW)
Error code
- 1 Cassette Paper Feed Error (MP PW)
Occurrence condition
- When the first sheet of paper loaded in the MP Tray is fed, the C1 Paper Feed Sensor does not detect the paper after the specified time has elapsed since the MP Tray Pickup Clutch is activated
Assumed cause
- Foreign objects or pieces of paper in the paper transport path
- The MP Tray paper feed rollers (MP Pickup Roller/MP Retard Roller) are worn out, deformed, have fallen off, or have a dirty surface
- Malfunction of the retard torque limiter of the MP Retard Roller Unit.
- The C1 Paper Feed Sensor has a dirty surface, has fallen off, or is faulty
- MP Tray, The MP Tray Pickup Clutch has fallen off or is faulty.
- Hopper plate damage
- MP Pickup gear train has fallen off or is damaged
- Feed Roller damage
- The Paper Feed Clutch has fallen off or is faulty.
- All Drive Motor failure
- MCU board failure
Related parts
- MP Tray paper feed related parts (MP Pickup Roller/MP Retard Roller, MP Tray hopper)
- Feed Roller
- C1 Paper Feed Sensor
- MP Tray Post-Pickup Sensor
- MP Tray Pickup Clutch
- All Drive Motor
- MCU Board
Troubleshooting
| Step | Confirmation and action | YES | NO |
|---|---|---|---|
| 1 | Check paper transport path Is there any foreign matter, paper chips, etc. in the paper transport path? |
Remove foreign matter, paper fragments, etc. | Go to step 2 |
| 2 | Check the dirt and installation of Paper Feed Roller Are the roller and sensor specified in the part to be checked installed properly? Make sure no dirt remains on the surfaces. |
Go to step 3 | Clean and reinstall the paper feed rollers. |
| 3 | Check the deformation and wear of the paper transport roller Are the rollers listed on the suspected part deformed or worn? |
Replacement of applicable paper transport roller | Go to step 4 |
| 4 | Check the Torque Limiter Can you rotate the Retard Roller by hand? |
Go to step 5 | Replace the Retard Assy |
| 5 | Check the operation of the C1 Paper Feed Sensor Check operation of the C1 Paper Feed Sensor with the diagnostic function. Judgment: Does the signal change between when the paper is placed and when it is not? |
Go to step 7 Sensor is normal |
Go to step 6 Sensor failure |
| 6 | Check the C1 Paper Feed Sensor for installation, dirt, and connector connection Is the MP Tray Post-Pickup Sensor installed improperly? Is there dirt on the sensor? Is the connector not fully inserted? |
Clean the sensor surface, reinstall the sensor, or fully insert the connector. | Replace the Sensor |
| 7 | Check the feed path Can paper be fed from the C1 Cassette? |
Go to step 8 The issue is with the Right Door Unit side. |
Go to step 11 The issue is with the main unit side |
| 8 | Check the MP Tray Pickup Clutch installation Is the MP Tray Pickup Clutch installed properly? |
Go to step 9 | Reinstall it properly. |
| 9 | Check the operation of the MP Tray Pickup Clutch Checking the operation of the MP Tray Pickup Clutch with the diagnostic function Does it make an operating sound (clutch connection sound)? |
Replace the Right Door Unit | Go to step 10 |
| 10 | Check the malfunctioning clutch for connection Are any of the connectors connecting the clutch not fully inserted? |
Connect securely | Replace the parts one by one.
|
| 11 | Check the feed clutch installation Is the feed clutch installed properly? |
Go to step 12 | Reinstall it properly. |
| 12 | Check the operation of the feed clutch Check the operation of the feed clutch using the diagnostic function. Does it make an operating sound (clutch connection sound)? |
Go to step 14 | Go to step 13 |
| 13 | Check the malfunctioning clutch for connection Are any of the connectors connecting the clutch not fully inserted? |
Connect securely | Replace the parts one by one.
|
| 14 | Check the All Drive Motor operation Check the operation of the corresponding main unit drive motor using the diagnostic function. Is there any abnormal noise? |
Replace the gear train and All Drive Motor | Replace the MCU board |