• Code: C-2001
• Description: Image process communication abnormality
  - 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 process Ready signal cannot be detected for a specified period of time.
• Causes: Overall control board (OACB) Printer control board (PRCB)

• Code: C-2201
• Description: Developing motor (M3) speed abnormality.
  - While M3 is ON, an EM error signal has been detected 5 times in succession within a specified period of time.
• Causes: Developing motor (M3) Printer control board (PRCB)

• Code: C-2202
• Description: Drum motor (M1) speed abnormality.
  - While M1 is ON, an EM error signal has been detected 5 times in succession within a specified period of time.
• Causes: Drum motor (M1) Printer control board (PRCB)

• Code: C-2301
• Description: Drum cooling fan (FM4) abnormality.
  - While FM4 is ON, an EM error signal has been detected 5 times in succession within a specified period of time.
• Causes: Drum cooling fan (FM4) Printer control board (PRCB)

• Code: C-2302
• Description: Developing suction fan motor (FM6) abnormality.
  - While FM6 is ON, an EM error signal has been detected 5 times in succession within a specified period of time.
• Causes: Developing suction fan motor (FM6) Printer control board (PRCB)

• Code: C-2303
• Description: Developing cooling fan (FM7) abnormality.
  - While FM7 is ON, an EM error signal has been detected 5 times in succession within a specified period of time.
• Causes: Developing cooling fan (FM7) Printer control board (PRCB)

• Code: C-2401
• Description: High machine inside temperature abnormality.
  - When the temperature around the drum is above 58 °C
• Causes: TCR sensor (TCRS) Printer control board (PRCB)

• Code: C-2402
• Description: Erase lamp (EL) connector slip-off abnormality.
  - When EL turns ON before starting an initial charging, EL abnormality has been detected 15 times in succession at prescribed intervals after a specified period of time.
• Causes: Erase lamp (EL) Printer control board (PRCB)