Description: Automatic toner density adjustment error (Over toner) The sampling level in the automatic toner density adjustment is 76 or less or the control voltage is 208 or above.
Causes: Toner density sensor trouble. Developing unit trouble. PCU PWB trouble.
Remedy: Replace the toner density sensor. Replace the developing unit. Replace the PCU PWB.
Code: EE-EU
Description: Automatic toner density adjustment error (Under toner) The sampling level in the automatic toner density adjustment is 178 or above or the control voltage is 51 or less.
Causes: Toner density sensor trouble. Developing unit trouble. PCU PWB trouble.
Remedy: Replace the toner density sensor. Replace the developing unit. Replace the PCU PWB.
Code: F1-00
Description: Finisher - PCU PWB communication error
Causes: Connection trouble of the connector and the harness between the finisher and the PCU PWB. Finisher control PWB trouble. PCU PWB trouble.
Remedy: Check the connector and the harness between the finisher and the PCU PWB. Replace the finisher control PWB. Replace the PCU PWB.
Code: F1-03
Description: Finisher paper exit roller lifting operation trouble
Causes: Finisher paper exit roller lift motor trouble Harness and connector connection trouble Home position sensor trouble Finisher control PWB trouble
Remedy: Use SIM3-3 to check the operation of the paper exit roller lift motor. Use SIM3-2 to check the operation of the home position sensor. Replace the paper exit roller lift motor. Check connection of the connector and the harness. Replace the home position sensor. Replace the finisher control PWB.
Code: F1-08
Description: Stapler shift trouble
Causes: Stapler shift motor trouble. Finisher control PWB trouble. Home position sensor trouble.
Remedy: Use SIM3-3 to check the operation of the stapler shift motor. Use SIM3-2 to check the operation of the home position sensor. Replace the stapler shift motor. Check connection of the connector and the harness. Replace the home position sensor. Replace the finisher control PWB.
Code: F1-10
Description: Staple operation trouble
Causes: Staple motor trouble. Finisher control PWB trouble. Home position sensor trouble.
Remedy: Use SIM3-3 to check the operation of the staple motor. Use SIM3-2 to check the operation of the home position sensor. Replace the staple motor. Check connection of the connector and the harness. Replace the home position sensor. Replace the finisher control PWB.