• Code: U7-51
• Description: Vendor machine error
  MFP (Notification of a trouble from the serial vendor)
• Causes: Serial vendor machine trouble. Connector, harness connection trouble.
• Remedy: Err.XX is displayed on the operation panel of the vendor. (XX is the detail code.) Repair the vendor machine referring to the detail code. Check the connector and the harness in the communication line.

• Code: UC-02
• Description: CPT - ASIC error
  Access error to the CPT-ASIC (The ASIC does not operate normally.)
• Causes: BtoB connector connection trouble. SCU PWB trouble. CPT-ASIC trouble.
• Remedy: Check the BtoB connector. Replace the SCU PWB or Option PWB.

• Code: UC-20
• Description: DOCC ASIC error
  Access error to the DOCC-ASIC (The ASIC does not
  operate normally.)
• Causes: BtoB connector connection trouble. SCU PWB trouble. DOCC-ASIC trouble.
• Remedy: Check the BtoB connector. Replace the SCU PWB or Option PWB.