• Code: C-5001
• Description: Main body control board communication abnormality 1
  - Communication abnormality between the overall control board (OACB) and the scanner drive board (SDB).
• Causes: Overall control board (OACB) Scanner drive board (SDB)

• Code: C-5002
• Description: Main body control board communication abnormality 2
  - Communication abnormality, incoming command abnormality, platen operation sequence abnormality to the sub CPU in the overall control board (OACB).
• Causes: Printer control board (PRCB)

• Code: C-5003
• Description: Sub CPU A/D conversion abnormality.
  - There is no response 2 times in succession to the A/D conversion request of the overall control board (OACB).
• Causes: Printer control board (PRCB)

• Code: C-5301
• Description: Exhaust fan /Fr (FM3) conversion abnormality.
  - When FM3 is ON, an error signal is detected 5 times in succession within a specified period of time.
• Causes: Exhaust fan /Fr (FM3) Printer control board (PRCB)

• Code: C-5302
• Description: Exhaust fan /Rr (FM9) conversion abnormality.
  - When FM9 is ON, an error signal is detected 5 times in succession within a specified period of time.
• Causes: Exhaust fan /Rr (FM9) Printer control board (PRCB)

• Code: C-5303
• Description: Power supply cooling fan (FM1) conversion abnormality.
  - When FM1 is ON, an error signal is detected 5 times in succession within a specified period of time.
• Causes: Power supply cooling fan (FM1) Printer control board (PRCB)

• Code: C-5401
• Description: There occurs an OS error with the engine control section in the printer control board (PRCB).
• Causes: Printer control board (PRCB)

• Code: C-5402
• Description: Time out for tuning off the power switch (SW2)
• Causes: Overall control board (OACB) Printer control board (PRCB)