• Code: SC129
• Description: Scanner Motor Error 6
  The scanner motor speed is abnormal.
• Causes: • Scanner motor defective • Scanner drive mechanism defective • PSU-E board defective • MCU board defective (scanner motor control unit)

• Code: SC143
• Description: SBU (Sensor Board Unit) Error 1
  At power on, the SBU white level adjustment, black level check, and final SBU white level check did not execute.
• Causes: • SBU defective • IPU defective • BCU defective • Harness between the SBU and IPU defective • Standard white plate not installed correctly, or is dirty • Scanner mirrors and/or lenses are dirty or installed incorrectly

• Code: SC144
• Description: SBU (Sensor Board Unit) Error 2
  At power on, the specified SBU ID (GASBUP and LM98513) could not be read after 3 tries
• Causes: • SBU defective • IPU defective • BCU defective • Harness between SBU and IPU defective

• Code: SC300
• Description: Charge Corona Output Error 1 (Charge Leakage)
  A high feedback voltage for the charge corona (more than 4.5 V) was detected from the CBG (charge, bias, grid) power pack 9 times within 60 ms.
• Causes: • CBG power pack defective • Poor charge corona unit connection • Charge corona unit connector defective

• Code: SC301
• Description: Charge Corona Output Error 2 (Circuit Open)
  A low feedback voltage for the charge corona (less than 1.5 V) was detected from the CBG power pack 9 times for 60 ms.
• Causes: • Charge/bias/grid power pack defective • Poor charge corona unit connection • Charge corona unit connector defective

• Code: SC303
• Description: Charge Grid Output Error 1 (Grid Leakage)
  A high feedback voltage for the grid (more than 4.5 V) was detected from the CBG power pack 9 times consecutively for 60 ms.
• Causes: • Charge/bias/grid power pack defective • Poor charge corona unit connection • Charge corona unit connector defective

• Code: SC304
• Description: Charge Grid Output Error 2 (Grip Open)
  A low feedback voltage for the grid (less than 1.0 V) was detected from the CBG power pack 9 times for 60 ms.
• Causes: • Charge/bias/grid power pack defective • Poor charge corona unit connection • Charge corona unit connector defective

• Code: SC305
• Description: Charge Corona Wire Cleaner Error 1
  The charge corona wire cleaner does not return to its home position, and there is no stop signal 30 s after cleaning starts.
• Causes: • Charge corona wire cleaner lock defective • Charge corona wire cleaner motor defective • BCU defective