• Code: E7-62
• Description: Controller connection trouble (scanner)
  Controller connection trouble. Compatibility trouble between the controller and the scanner.
• Causes: Combination error between the controller PWB and the engine.
• Remedy: Check the controller PWB. Check combination between the controller PWB and the scanner.

• Code: E7-65
• Description: MFP EEPROM sum check error
  EEPROM PWB information sum error
• Causes: EEPROM device trouble. EEPROM device contact trouble. Device access error due to noises.
• Remedy: Replace the PWB.

• Code: E7-70
• Description: Scanner connection trouble
  Unknown PWB identification information is detected on the SCU PWB
• Causes: The PWB / firmware which is not supported by the machine specifications is connected. SCU PWB trouble. DSPF PWB trouble.
• Remedy: Check the firmware kind and the version. Check the SCU PWB. Check the DSPF PWB.

• Code: E7-71
• Description: DSPF connection trouble
  An unknown PWB identification information is detected in the DSPF PWB/ combination abnormality with the SCU PWB
• Causes: PWB / firmware which does not support the machine specifications is connected.
• Remedy: Firmware kind / Version check.

• Code: E7-75
• Description: DSPF connection trouble
  An unknown PWB identification information is detected in the DSPF PWB/ combination abnormality with the SCU PWB
• Causes: PWB / firmware which does not support the machine specifications is connected.
• Remedy: Firmware kind / Version check.

• Code: E7-75
• Description: PWB information sum error (scanner detection)
  EEPROM PWB information sum error
• Causes: EEPROM device trouble. EEPROM device contact trouble. Device access error due to noises.
• Remedy: Replace the SCU PWB.

• Code: E7-76
• Description: PWB information sum error (DSPF detection)
  FLASH ROM PWB information sum error
• Causes: FLASH ROM device trouble. FLASH ROM device contact trouble. Device access error due to noises.
• Remedy: Replace the DSPF PWB.

• Code: E7-80
• Description: MFP - SCU PWB communication error
• Causes: SCU PWB - MFPC PWB connection trouble. SCU PWB trouble. MFPC PWB trouble.
• Remedy: Check connection of the SCU PWB and the MFPC PWB. Check the ground. Replace the SCU PWB. Replace the MFPC PWB.