• Code: F77-22
• Description: FN-112/6/ 121/10/115 abnormality
  After M716 (alignment /L) starts operation, PS724 (alignment HP/L) does not turn ON within the specified time.
• Causes: FNSCB (FNS control board) RB (relay board) M716 (alignment /L) PS724 (alignment /L)

• Code: F77-25
• Description: FN-112/6/ 121/10/115 abnormality
  PS22(folding knife HP) does not go ON within the specified time after M19(folding knife) starts operation of HP detection.
• Causes: FNS CB (FNS control board) M19 (folding knife) PS22 (folding knife HP)

• Code: F77-26
• Description: FN-112/6/ 121/10/115 abnormality
  After M720 (folding conveyance) starts operation, it does not reach the prescribed speed within the specified time.
• Causes: FNSCB (FNS control board) M720 (folding conveyance)

• Code: F77-3
• Description: FN-112/6/ 121/10/115 abnormality
  After M705 (alignment /U) starts operation, PS708 (alignment HP/U) does not turn OFF within the specified time, or does not turns ON after OFF.
• Causes: FNSCB (FNS control board) RB (relay board) M705 (alignment /U) PS708 (alignment HP/U)

• Code: F77-4
• Description: FN-112/6/ 121/10/115 abnormality
  After M707 (paper feed roller) starts operation, it does not reach the prescribed speed within the specified time.
• Causes: FNSCB (FNS control board) M707 (paper exit roller)

• Code: F77-41
• Description: Cover Inserter B/E abnormality
  After M202 (tray up/down /L) starts operation, PS209 (tray upper limit /L) or PS210 (tray lower limit /L) do not turn ON within the specified time.
• Causes: FNSCB (FNS control board) PIDB (PI drive board) M202 (tray up/down /L) M209 (tray upper limit /L) PS210 (tray lower limit /L)

• Code: F77-42
• Description: Cover Inserter B/E abnormality
  After M201 (tray up/down/ U) starts operation, PS204 (tray upper limit /U) or PS205 (tray lower limit /U) do not turn ON within the specified time.
• Causes: FNSCB (FNS control board) PIDB (PI drive board) M201 (tray up/down /U) PS204 (tray upper limit /U) PS205 (tray lower limit /U)

• Code: F77-43
• Description: Cover Inserter B/E abnormality
  After M203 (PI conveyance) starts operation, it does not reach the prescribed speed within the specified time.
• Causes: FNSCB (FNS control board) M203 (PI conveyance)