• Code: A0-01
• Description: PCU PWB ROM error
• Causes: The firmware version-up is not completed properly by interruption of the power during the version-up operation, etc. PCU PWB trouble.
• Remedy: Use SIM49-1 to perform the firmware version-up procedure again. Replace the PCU PWB.

• Code: A0-02
• Description: SCU PWB ROM error
• Causes: The firmware version-up is not completed properly by interruption of the power during the version-up operation, etc. SCU PWB trouble.
• Remedy: Use SIM49-1 to perform the firmware version-up procedure again. Replace the SCU PWB.

• Code: A0-04
• Description: Scanner expansion PWB (ACU) (ACRE) ROM error
• Causes: Scanner expansion PWB (ACU) (ACRE) ROM data error. An error occurs during firmware upgrading for some reasons.
• Remedy: Perform firmware upgrading again.

• Code: A0-10
• Description: Color profile error
• Causes: The content of the color profile is abnormal. Combination error between the MFPC PWB firmware and the color profile
• Remedy: Upgrade the firmware collectively. Replace the MFPC PWB.

• Code: A0-15
• Description: Incompatible DSK BOOT and program firmware
• Causes: Installation of the normal firmware was performed with a security kit enable.
• Remedy: Stop installation of the normal firmware.

• Code: A0-17
• Description: Inconsistency between the UI data and the CPU firmware version
• Causes: Combination error between the UI contents data and the CPU UI firmware version.
• Remedy: Install the firmware in the all-firmware version-up mode.

• Code: A0-20
• Description: Conflict firmware and EEPROM data version (MFP)
• Causes: Inconsistency between the MFP firmware version and the EEPROM data version.
• Remedy: Check the combination of the firmware

• Code: A0-21
• Description: Conflict firmware and EEPROM data version (PCU)
• Causes: Inconsistency between the PCU firmware version and the EEPROM data version.
• Remedy: Check the combination of the firmware.