• Code: F77-11
• Description: FN-112/6/ 121/10/115 abnormality
  (OT-104) After M724 (stapler /F) starts operation, PS734 (stapler HP/F) does not turn ON within the predefined time.
• Causes: FNSCB (FNS control board) RB (relay board) M714 (stapler /F) PS731 (stapler HP/F)

• Code: F77-12
• Description: FN-112/6/ 121/10/115 abnormality
  (FN-112/ 6/121/10) After M709 (stapler /R) starts operation, PS730 (stapler HP/R) does not turn ON within the specified time.
• Causes: FNS CB (FNS control board) M724 (stapler /F) PS734 (stapler HP/F)

• Code: F77-12
• Description: FN-112/6/ 121/10/115 abnormality
  (OT-104) After M722 (stapler /R) starts operation, PS731 (stapler HP/R) does not turn ON within the predefined time.
• Causes: FNS CB (FNS control board) M722 (stapler /R) PS731 (stapler HP/R)

• Code: F77-13
• Description: FN-112/6/ 121/10/115 abnormality
  After M715 (clincher /F) starts operation, PS733 (clincher HP/F) does not turn ON within the specified time.
• Causes: FNSCB (FNS control board) RB (relay board) M715 (clincher /F) PS733 (clincher HP/F)

• Code: F77-14
• Description: FN-112/6/ 121/10/115 abnormality
  After M710 (clincher /R) starts operation, PS732 (clincher HP/R) does not turn ON within the specified time.
• Causes: FNSCB (FNS control board) M710 (clincher /R) PS732 (clincher HP/R)

• Code: F77-2
• Description: (FN-112/ 6/121/10/ 115) After M703 (tray up/down) starts operation, PS702 (tray upper limit) or PS707 (stapler paper exit upper limit) does not turn ON within the specified time.
• Causes: FNSCB (FNS control board) M703 (tray up/down) PS702 (tray upper limit) PS707 (stapler paper exit upper limit)

• Code: F77-2
• Description: (OT-104) The machine and FNS stop immediately. RL (main) is turned OFF.
• Causes: SFCB (SF control board) M702 (tray up/down) PS703 (tray upper limit) PS704 (tray lower limit)

• Code: F77-21
• Description: FN-112/6/ 121/10/115 abnormality
  After M718 (folding stopper) starts operation, PS723 (folding stopper HP) does not turn ON within the specified time.
• Causes: FNSCB (FNS control board) RB (relay board) M718 (folding stopper) PS723 (folding stopper HP)