Causes: 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.
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.
Code: E7-14
Description: CCD-ASIC error
Causes: SCU PWB trouble. Improper Installation of the harness to the CCD unit. CCD unit abnormality. SCU PWB abnormality.
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.
Code: E7-20
Description: LSU laser detection error
Causes: Laser optical axis misalignment Reduced laser power, lighting error, laser diode trouble. Disconnection or improper connection of harness and connector between LD PWB and MFPC PWB.
Remedy: Use SIM61-1 to check the operation of the LSU. Check connection of the connector and harness between the LD PWB and the MFPC PWB. Replace the MFPC PWB. Replace the LSU.
Code: E7-21
Description: LSU LD deterioration trouble
Causes: Laser deterioration, power reduction Disconnection or improper connection of harness and connector between LD PWB and MFPC PWB.
Remedy: Use SIM61-1 to check the operation of the LSU. Check connection of the communication connetctor between the LD PWB and MFPC PWB. Replace the MFPC PWB. Replace the LSU.
Code: E7-28
Description: LSU control Asic connection error
Causes: Improper connection of the communication connector between the PCU PWB and the MFPC PWB. Harness trouble between the PCU PWB and the MFPC PWB PCU PWB or MFPC PWB trouble.
Remedy: Check connection of the connector and the harness between the PCU PWB and the MFPC PWB. Replace the MFPC PWB. Replace the PCU PWB.
Code: E7-49
Description: Water Mark data error
Causes: Watermark data trouble. HDD trouble. * When the wartermark data is not installed, U2-60 error occurs in booting.
Remedy: Use SIM62-02/SIM62-03 to check HDD read/write. If the result is NG, a remedy corresponding to E7-03 is required. Use SIM49-05 to update the watermark data. (Reinstallation)