Causes: Developing unit disconnection MCU PWB abnormality Toner cartridge is not installed.
Remedy: Check installation of the developing unit. Replace the MCU PWB. Install toner cartridge.
Code: CH-ON
Description: Side door open
Causes: Side door sensor abnormality MCU PWB abnormality
Remedy: Check that all the side doors are closed. Replace the MCU PWB.
Code: E7-01
Description: Duplex model memory error/ Image data error
Causes: 1. The memory capacity on the MCU PWB is wrong. 2. Setting for a single surface model is wrong.
Remedy: 1. Use SIM26-39 to check to confirm that the memory capacity is 64MB. If it is not 64MB, replace the MCU PWB. 2. If SIM26-04 is set to 1, change the setting to 0. If it is 0, replace the MCU PWB.
Code: E7-06
Description: Image data decode error
Causes: MCU PWB abnormality USB cable trouble
Remedy: Replace the MCU PWB. Replace the USB cable.
Code: E7-10
Description: Shading error (Black correction)
Causes: Improper connection of the CCD unit flat cable CCD unit abnormality MCU PWB abnormality.
Remedy: Check connection of the CCD unit flat cable. Check the CCD unit.
Code: E7-11
Description: Shading error (White correction)
Causes: Improper connection of the CCD unit flat cable Dirt on the mirror, the lens, and the reference white plate Copy lamp lighting abnormality CCD unit abnormality MCU PWB abnormality (When occurred in the SPF scan position.) Improper installation of the mirror unit
Remedy: Clean the mirror, the lens, and the reference white plate. Check lighting and the light quantity of the copy lamp (SIM05-03). Check the CCD unit. Check the MCU PWB.