• Code: E6-10
• Description: Back-face shading trouble black correction (DSPF)
  CCD black scan level abnormality when the copy lamp is turned off. (MX-3501N/4501N)
• Causes: Installation error of the CCD unit flat cable CCD unit abnormality SCU PWB abnormality
• Remedy: Case 1 Cause Installation error of the CCD unit flat cable Check and remedy Check the installing state of the flat cable to the CCD unit. Case 2 Cause CCD unit abnormality Check and remedy Check the CCD unit. Case 3 Cause SCU PWB abnormality Check and remedy Check the SCU PWB.

• Code: E6-11
• Description: Shading trouble white correction (DSPF)
  CCD white scan level abnormality when the copy lamp is on. (MX-3501N/4501N)
• Causes: Installation error of the CCD unit flat cable Dirt on the mirror, the lens, or the reference white plate. Copy lamp lighting trouble CCD unit abnormality SCU PWB abnormality
• Remedy: Case 1 Cause Installation error of the CCD unit flat cable Check and remedy Check the installing state of the flat cable to the CCD unit. Case 2 Cause Dirt on the mirror, the lens, or the reference white plate. Check and remedy Clean the mirror, the lens, or the reference white plate. Case 3 Cause Copy lamp lighting trouble Check and remedy Check the installing state of the flat cable to the copy lamp unit. Case 4 Cause CCD unit abnormality Check and remedy Check the CCD unit. Case 5 Cause SCU PWB abnormality Check and remedy Check the SCU PWB.

• Code: E6-14
• Description: Back-face SCAN-ASIC trouble
  Written register value cannot be read correctly
• Causes: SCU PWB abnormality
• Remedy: Check the SCU PWB.

• Code: E7-00
• Description: System memory access error
  System memory trouble (Tandem memory cannot be guaranteed.) Access to system memory cannot be made.
• Causes: Expansion memory instillation error Garbled data Dirt on the memory pin
• Remedy: Case 1 Cause Expansion memory instillation error Check and remedy Check installation of the system expansion memory. Case 2 Cause Garbled data Check and remedy 1) Use SIM60-01 to check memory read/write 2) Replace the expansion memory (if installed.) 3) Replace the MFPcnt PWB. Case 3 Cause Dirt on the memory pin Check and remedy Clean the memory pin with alcohol.

• Code: E7-01
• Description: System data trouble
  ICU data trouble occurs.
• Causes: ICU image transfer trouble
• Remedy: 1) Check the connection state of the MFPcnt PWB connector. 2) Replace the MFPcnt PWB.

• Code: E7-03
• Description: HDD trouble
  HDD connection trouble File control area data trouble (when FAT is broken)
• Causes: The HDD is not properly installed to the MFPcnt PWB The HDD does not work properly. MFPcnt PWB trouble
• Remedy: Case 1 Cause The HDD is not properly installed to the MFPcnt PWB Check and remedy 1) Check installation of the HDD of the MFPcnt PWB. 2) Check connection of the harness of the MFPcnt PWB. 3) Use SIM62-2 and -3 to check read/write from/to the HDD. Case 2 Cause The HDD does not work properly. Check and remedy Replace the HDD. Case 3 Cause MFPcnt PWB trouble Check and remedy Replace the MFPcnt PWB.

• Code: E7-05
• Description: Local memory access error
  Local memory cannot be accessed.
• Causes: Local memory installation abnormality Dirt on local memory pin Garbled data
• Remedy: Case 1 Cause Local memory installation abnormality Check and remedy Check the installing state of the local memory. Case 2 Cause Dirt on local memory pin Check and remedy Clean the local memory pin with alcohol. Case 3 Cause Garbled data Check and remedy 1) Use SIM60-01 to check memory read/write. 2) Replace the memory. 3) Replace the MFPcnt PWB.

• Code: E7-06
• Description: Decode error trouble: Compression decode error (A compression file cannot decompressed.
  A decode error occurs when forming an image.
• Causes: Compression data abnormality HDD connection abnormality Data are garbled in image compression/send. MFPcnt PWB abnormality Local memory access trouble
• Remedy: Case 1 Cause Compression data abnormality Check and remedy 1) Check the installing state of the PWB. (PCI bus) 2) When an error occurs during a FAX job, check the installation of the FAX PWB. In the other cases, check the installation of the MFPcnt PWB and HDD. 3) Replace the MFPcnt PWB. Case 2 Cause HDD connection abnormality Check and remedy Check the HDD connection. Case 3 Cause Data are garbled in image compression/send. Check and remedy 1) Check the installation of the PWB. (PCI bus) 2) When an error occurs during a FAX job, check the installation of the FAX PWB. In the other cases, check the installation of the MFPcnt PWB and HDD. 3) Replace the MFPcnt PWB. Case 4 Cause MFPcnt PWB abnormality Check and remedy Replace the MFPcnt PWB. Case 5 Cause Local memory access trouble Check and remedy Check and execute remedy similarly to E7-05.