• Code: 901
• Description: Mechanical total counter error
  The polling module does not detect the mechanical total counter.
• Causes: • Defective mechanical total counter
  • Defective BICU
  • Loose connection

• Code: 903
• Description: Engine total counter error
  The checksum of the total counter is not correct.
• Causes: • Defective NVRAM on the BICU

• Code: 920
• Description: Printer error
  An application error that stops the machine operation is detected.
• Causes: • Defective software

• Code: 921
• Description: Printer font error
  A necessary font is not found in the SD card when the printer application starts.
• Causes: • A necessary font is not found in the SD card.
  • The SD card data is corrupted.

• Code: 925
• Description: Net file error
  The management file for net files is corrupted; net files are not normally read. Netfiles: Jobs to be printed from the document server using a PC and the DeskTopBinder software
• Causes: • Defective hardware
  • Data corruption
  • Defective software

• Code: 954
• Description: Printer application program error
  The printer application program does not become ready when the printer application program is necessary.
• Causes: • Defective application program

• Code: 955
• Description: Image transfer error
  The BICU requests the controller to transfer image data; but the controller does not become ready.
• Causes: • Defective application program

• Code: 964
• Description: Status error (laser optics housing unit)
  The optics-housing unit does not become ready within 17 seconds after a request.
• Causes: • Defective software