MX3114N TROUBLESHOOTING 7 – 10
C1-14 Main charger trouble (Color)
C4-00 PTC trouble (TC high voltage trouble)
E7-01 MFP image data error
E7-03 HDD trouble
E7-04 HDD-ASIC error
E7-07 SD card error
E7-10 Shading error (Black correction)
E7-11 Shading error (White correction)
E7-14 CCD-ASIC error
Trouble content
Detail PCU
Cause The main charger unit (CMY) is not installed properly.
There is an abnormality in the main charger unit
(CMY).
Disconnection of the high voltage MC PWB
connector.
Breakage of the high voltage harness.
High voltage MC PWB trouble.
PCU PWB trouble.
Check & Remedy Check the output of the main charger with SIM8-2.
Check disconnection of the main charger./Replace.
Check disconnection of the high voltage MC PWB
connector./Replace.
Replace the high voltage MC PWB
Replace the PCU PWB.
Trouble content
Detail PCU
Cause The PTC unit is not installed properly./Trouble.
The primary transfer unit is not installed properly./
Trouble.
The secondary transfer unit is not installed properly./
Trouble.
High voltage TC PWB trouble.
PCU PWB trouble.
Connection trouble of the connector and the harness.
Check & Remedy Replace the PTC unit.
Replace the primary transfer unit.
Replace the secondary transfer unit.
Check disconnection of the high voltage TC PWB
connector./Replace.
Replace the high voltage TC PWB.
Replace the PCU PWB.
Trouble content
Detail MFP
Cause Image data transfer error in the MFPC PWB.
MFPC PWB trouble.
Check & Remedy Check connection of the connector and the harness
of the MFPC PWB.
Check or replace the MFPC PWB.
Trouble content
Detail MFP
Cause Connector, harness connection trouble in the MFPC
PWB and HDD.
HDD (error file management area) data abnormality
(FAT breakage).
MFPC PWB trouble.
Check & Remedy Check connection of the connector and the harness
of the MFPC PWB and HDD.
Use SIM62-2, 3 to check read/write operations of the
HDD.
Replace the HDD.
Check or replace the MFPC PWB.
Trouble content
Detail MFP
Cause HDD-ASIC trouble. (MFPC PWB trouble.)
An error occurs in the HDD-ASIC self test when
booting.
Check & Remedy Check or replace the MFPC PWB.
Trouble content
Detail MFP
Cause SD card trouble or contact error
MFPC PWB trouble.
Check & Remedy Replace the SD card.
Check the SD card socket.
Replace the MFPC PWB.
Trouble content
Detail SCU
Cause Abnormality in the CCD black scan level when the
scanner lamp is turned OFF.
Improper installation of the harness to the CCD unit.
CCD unit abnormality.
SCU PWB abnormality.
Check & Remedy Check connection of the harness to the CCD unit.
Check the CCD unit.
Check the SCU PWB.
Trouble content
Detail SCU
Cause Abnormality in the CCD white reference plate scan
level when the scanner lamp is turned ON.
Improper installation of the harness to the CCD unit.
Dirt on the mirror, lens, and the reference white plate.
Scanner lamp lighting trouble.
Scanner lamp drive PWB trouble
CCD unit abnormality.
SCU PWB abnormality.
Check & Remedy Check connection of the harness to the CCD unit.
Check connection of the harness to the scanner lamp
unit.
Check or replace the scanner lamp.
Check or replace the scanner lamp drive PWB.
Clean or replace the mirror, the lens, and the
reference white board.
Check or replace the CCD unit.
Check or replace the SCU PWB.
Trouble content
Detail SCU
Cause SCU PWB trouble.
Improper Installation of the harness to the CCD unit.
CCD unit abnormality.
SCU PWB abnormality.
Check & Remedy Check the SCU PWB.
Replace the SCU PWB.
Check connection of the harness to the CCD unit.
Check or replace the CCD unit.
Check or replace the SCU PWB.
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