• Code: C-1001
• Description: 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, an FS Ready signal cannot be detected for a specified period of time.
• Causes: Overall control board (OACB) Printer control board (PRCB)

• Code: C-1002
• Description: FS
  - FS communication abnormality. A serial communication is unavailable between the FS control board (FSCB) and the printer control board (PRCB).
• Causes: FS control board (FSCB) Printer control board (PRCB)

• Code: C-1003
• Description: FS-510
  - Flash ROM abnormality. A checksum error of the flash ROM is detected.
• Causes: FS control board (FSCB)

• Code: C-1101
• Description: FS-511 Shift motor (M8) drive abnormality.
  - When starting the home position movement, the shift home sensor (PS10) does not turn ON a specified period of time after M8 turns ON.
  - When starting the shift position movement, PS10 does not turn OFF a specified period of time after M8 turns ON.
• Causes: Shift motor (M8) Shift home sensor (PS10) FS control board (FSCB)

• Code: C-1102
• Description: FS-511:Tray lift motor (M7) drive abnormality.
  - While in the main tray up drive, the main tray upper limit sensor (PS19) does not turn ON within a specified period of time after M7 turns ON.
  - While in the main tray down drive, the lock signal of M7 is detected.
  - While in the M7 ON, the main tray upper limit switch (SW2) or the main tray lower limit switch (SW3) turns ON.
• Causes: Tray lift motor (M7) Main tray upper limit sensor (PS19) FS control board (FSCB)

• Code: C-1103
• Description: FS-511: Alignment motor (M5) drive abnormality.
  - While in the alignment home position search, the alignment home sensor (PS9) does not turn ON within a specified period of time after M5 turns ON.
  - While in the alignment operation, PS9 does not turn OFF within a specified period of time after M5 turns ON.
• Causes: Alignment motor (M5) Alignment home sensor (PS9) FS control board (FSCB)

• Code: C-1104
• Description: FS-511: Paper exit roller release motor (M13) drive abnormality.
  - When starting the pressure position drive, the exit roller home sensor (PS13) does not turn ON within a specified period of time after M13 turns ON.
  - When starting the separation position drive, PS13 does not turn OFF within a specified period of time after M13 turns ON.
• Causes: Paper exit roller release motor (M13) Exit roller home sensor (PS13) FS control board (FSCB)

• Code: C-1105
• Description: FS-511: Intermediate conveyance roller release motor (M12) drive abnormality.
  - When starting the pressure position drive, the roller release home sensor (PS12) does not turn ON within a specified period of time after M12 turns ON.
  - When starting the separation position drive, PS12 does not turn OFF within a specified period of time after M12 turns ON.
• Causes: Intermediate conveyance roller release motor (M12) Roller release home sensor (PS12) FS control board (FSCB)