Code :

Code: E7-A3
Description: LSU LD PWB EEPROM read/write error (Y)
Causes: LD PWB EEPROM trouble. LSU mother PWB trouble. Connector/harness trouble between the LD PWB and the LSU mother PWB. Connector/harness trouble between the PCU PWB and the LSU mother PWB.
Remedy: Check the LSU, and replace if necessary. Check the LSU mother PWB, and replace if necessary. Check the connector/harness between the LD PWB and the LSU mother PWB, and replace if necessary. Check the connector/harness between the PCU PWB and the LSU mother PWB, and replace if necessary. Replace the LSU.

Code: E7-A5
Description: Installation error of HDD which was used in the mirroring kit
Causes: A HDD which was used in the mirroring kit is installed to the MFP without the mirroring kit.
Remedy: Replace the HDD with one which has not been used in the mirroring kit.

Code: E7-A6
Description: Compact flash memory trouble
Causes: Compact flash memory trouble. MFPC PWB trouble. File system control area data trouble.
Remedy: Replace the compact flash memory. Replace the MFPC PWB.

Code: EE-EC
Description: Automatic toner density adjustment error
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-EL
Description: Automatic toner density adjustment error (Over toner)
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)
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.