Pre-Printing Sensor Unreached Paper Jam
Error code
- 25 Pre-Printing Sensor Unreached Paper Jam
Occurrence condition
- Pre-Printing Sensor does not turn on after the specified time has elapsed since the Registration Roller Clutch is turned on
Assumed cause
- Foreign objects or pieces of paper in the paper transport path
- Pre-Printing Sensor has a dirty surface, has fallen off, or is faulty
- The Anti-Static Unit has fallen off or is faulty
- The Registration Roller Assy/Clutch has fallen off or is faulty
- All Drive Motor failure
- MCU board failure
Related parts
- Anti Static Brush
- Registration Roller Assy
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 operation of the Paper Sensor, Pre-Printing Check the operation of the Pre-Printing Paper Sensor with the diagnostic function. Judgment: Does the signal change between when the paper is placed and when it is not? |
Go to step 4 | Go to step 3 |
| 3 | Check the Pre-Printing Sensor for installation, dirt, and connector connection Is there any problem with the installation of the Pre-Printing Paper Sensor Is there dirt on the sensor? Is the connector not fully inserted? Is the paper feed connector on the front frame side not inserted halfway? |
Clean the sensor surface, or fully insert the connector. | Replace the parts one by one.
|
| 4 | Check the Registration Roller Assy installation Is the Registration Roller Assy installed correctly?Is the connector up to the clutch partially inserted? |
Replace the Registration Roller Assy | Reassemble and check the Registration Roller Assy installation |
| 5 | Check the All Drive Motor operation Check the operation of the corresponding drive motor using the diagnostic function. Judgment: Is there any abnormal noise? |
Replace the gear train and All Drive Motor | Replace the MCU board |