Paper Retention Jam: High Capacity Unit

Occurrence condition

  • When feeding paper from the High Capacity Unit, the PF paper detection sensor does not turn OFF after specified time has elapsed.

Defect-related parts
  • Pickup Roller, High Capacity Tray
  • Controller Board
  • PF paper feed clutch
  • Mechanical Controller Board
Troubleshooting
Step Confirmation and action YES NO
1

Check the paper feed path

  • At this time, check that the paper is not caught between the High Capacity Unit and the Main Unit.
 Remove any foreign objects or pieces of paper Go to step 2
2

Check the paper transport roller sensor for dirt and installation

  • Are the roller sensors listed on the defect-related parts clean and properly installed?
    Also, is the load spring of the roller disengaged?
 Go to step 3

Cleaning or reinstalling the roller and sensor

3

Check the paper feed rollers for deformation and wear

  • Are the rollers listed in the “Related parts” section deformed or worn?
 Replace the worn out or deformed roller Go to step 4
4

Attach sensor and check connector connection

  • Is there any abnormality in the sensor or half-inserted in the connector?
 Connect securely

Replace sequentially

  • Sensors
5

Check clutch operation
Check the clutch operation with the diagnostic function.

  • Judgment: Is there operation sound?

  • PF paper feed clutch (High Capacity Unit) (HC Paper Feed motor + HC Pickup clutch
 Go to step 7 Go to step 6
6

Check the connection of the malfunctioning clutch connector

  • Is the connector up to the Clutch half-inserted?
 Connect them firmly.

Replace the parts one by one.

  • Clutch
  • Controller Board
7

Board replacement and confirmation of phenomenon reproduction

  • Replace the Controller Board and check the reproduction of the phenomenon for the content of the defect report.
    Is the phenomenon continuing?  

Replace the parts one by one.

  • Mechanical Controller Board
 End