• 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: OS error
  - 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: System control communication abnormality
  - Time out for tuning off the power switch (SW2)
• Causes: Overall control board (OACB) Printer control board (PRCB)

• Code: C-6001
• Description: Image process communication abnormality
  - CCD board (CCDB) connection abnormality.
• Causes: CCD board (CCDB) Overall control board (OACB)

• Code: C-6002
• Description: Communication abnormality between the engine control of the overall control board (OACB) and that of the printer control board (PRCB). While in the stand-by, a scanner Ready signal cannot be detected for a specified period of time.
• Causes: Overall control board (OACB) Printer control board (PRCB)

• Code: C-6003
• Description: Communication abnormality between the engine control of the overall control board (OACB) and that of the printer control board (PRCB). Time out for the notice time of the platen original size.
• Causes: Overall control board (OACB) Printer control board (PRCB)