• Code: E7-50
• Description: engine connection trouble
• Causes: A PWB/firmware/LSU which is not compatible with the machine specifications is detected. PCU PWB trouble LSU trouble
• Remedy: Check the kind and the version of the firmware. Check or replace the LSU. Check or replace the PCU PWB

• Code: E7-55
• Description: PWB information sum error (engine detection)
• Causes: PCU EEPROM sum check error. PCU EEPROM trouble. PCU EEPROM contact trouble.
• Remedy: Replace the PCU PWB. Replace the PCU EEPROM

• Code: E7-60
• Description: Combination error between PWB and firmware
• Causes: A PWB/firmware which is not compatible with the machine specifications is detected in the SCN-MFP PWB. SCN-MFP PWB trouble
• Remedy: Check the kind and the version of the firmware. Check or replace the SCN-MFP PWB.

• Code: E7-61
• Description: Combination error between the SCNMFP PWB and the PCU PWB
• Causes: Combination error between the SCN-MFP PWB and the PCU PWB. SCN-MFP PWB trouble. PCU PWB trouble.
• Remedy: Check the combination between the SCN-MFP PWB and the PCU PWB. Replace the SCN-MFP PWB or PCU PWB.

• Code: E7-62
• Description: Combination error between the SCNMFP PWB and the scanner
• Causes: Combination error between the SCN and the scanner on the SCN-MFP PWB.
• Remedy: Check the SCN-MFP PWB. Replace the SCN-MFP PWB.

• Code: E7-80
• Description: Communication error between the SCN-MFP PWB and the scanner
• Causes: SCN-MFP PWB trouble
• Remedy: Replace the SCN-MFP PWB.

• Code: E7-90
• Description: SCN-MFP - PCU PWB communication error
• Causes: SCN-MFP PWB - PCU PWB connection trouble. PCU PWB trouble. SCN-MFP PWB trouble
• Remedy: Check connection of the SCN-MFP PWB and PCU PWB. Replace the PCU PWB. Replace the SCN-MFP PWB.

• Code: E7-91
• Description: Decode error (FAX reception print)
• Causes: Compression dater abnormality. HDD trouble. mSATA SSD trouble. Image compression/transmission data corruption. SCN-MFP PWB trouble. Memory attachment state abnormality.
• Remedy: Use SIM60-01 to check the read/write operations of the memory. Replace the HDD. Replace or check installation of the mSATA SSD. Replace the SCN-MFP PWB. Replace the FAX control PWB.