Remedy: Replace the PTC unit. Replace the PCU PWB. Check connection of the connector and the harness. NOTE: When the PTC unit is broken down and repair cannot be made because of no replacement part: To use the machine continuously, make the setting to ignore the PTC trouble, and the machine can be operated tentatively. Set the engine soft SW8-3 in SIM55-1 to "1". This setting disables the PTC output, the heater control, and the error detection. After completion of repair, set the engine soft SW8-3 in SIM55-1 to "0".
Code: C4-10
Description: PTC no control
Causes: The engine soft SW8-3 in SIM55-1 is set to "1". The PTC control is not executed. (The PTC does not operate.) When the engine soft SW8-3 in SIM55-1 is set to "1", the PTC output, the heater control, and the error detection are disabled. When this setting is made in case of a PTC unit trouble, the PTC function is disabled regardless of the PTC trouble and printing operation can be performed.
Remedy: Set the engine soft SW8-3 in SIM55-1 to "0". (The mode returns to the normal PTC control mode.)
Code: E7-01
Description: MFP image data error
Causes: Image data transfer error in the MFP PWB. MFP PWB trouble.
Remedy: Check connection of the connector and the harness of the MFP PWB. Replace the MFP PWB.
Code: E7-03
Description: HDD trouble
Causes: Connector, harness connection trouble in the MFP PWB and HDD. HDD (error file management area) data abnormality (FAT breakage). MFP PWB trouble.
Remedy: Check connection of the connector and the harness of the MFP PWB and HDD. Use SIM62-2,3 to check read/write operations of the HDD. Replace the HDD. Replace the MFP PWB.
Code: E7-04
Description: HDD-ASIC error
Causes: HDD-ASIC trouble. An error occurs in the HDD-ASIC self test when booting.
Remedy: Replace the MFP PWB.
Code: E7-05
Description: Standard memory/expansion memory read/write error (MFP PWB) Memory access is disabled.
Causes: Improper insertion of the memory. Garbled memory data. The memory capacity is not the specified level.
Remedy: Check insertion of the memory. Use SIM60-1 to check the read/write operations of the memory. Replace the expansion memory. Replace the MFP PWB.