Post-Head Paper Sensor paper feed delay error

Error code
  • 54 Post-Head Paper Sensor paper feed delay error
Occurrence condition
  • The Post-Head Paper Sensor is already ON when sensor check begins.
Assumed cause
  • Foreign objects or pieces of paper in the paper transport path
  • The Post-Head Paper Sensor has a dirty surface, has fallen off, or is faulty
  • Anti-Static Unit (ANTI STATIC, BRUSH, ASSY) has fallen off
  • Mechanical control board failure
Related parts
  • Post-Head Paper Sensor
  • Anti-Static Unit (ANTI STATIC, BRUSH, 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 any foreign objects or pieces of paper

Go to step 2
2

Check the operation of the Post-Head Paper Sensor

Check the operation of the Post-Head Paper Sensor with the diagnostic function.

Does the signal change between when the paper is placed and when it is not?

 Go to step 3 Go to step 4
3

Check the Anti-Static Unit installation

Is the Anti-Static Unit listed in the “Assumed cause” section clean and installed properly?

 Go to step 4

Clean and reinstall the Anti-Static Unit.
4

Check the Post-Head Paper Sensor for installation, dirt, and connector connection

Is the Post-Head Paper Sensor installed improperly? Is there dirt on the sensor? Is the connector not fully inserted?

Is the relay connector on the Front Frame side not fully inserted?

Replace sequentially

  • Post-Head Guide Unit
  • Anti-Static Unit (ANTI STATIC, BRUSH, ASSY)
 Clean the sensor surface, or fully insert the connector.