• Code: SC77-41
• Description: After start-up of the tray lift motor /Lw (M202) operation, the tray lower limit sensor /Lw (PS210) does not turn ON within a specified period of time.
• Causes: FS control board (FSCB) PI drive board (PIDB) Tray lift motor /Lw (M202) Tray lower limit sensor /Lw (PS210)

• Code: SC77-42
• Description: After start-up of the tray lift motor /Up (M201) operation, the tray upper limit sensor /Up (PS204) does not turn ON within a specified period of time.
• Causes: FS control board (FSCB) PI drive board (PIDB) Tray lift motor /Up (M201) Tray upper limit sensor /Up (PS204)

• Code: SC77-43
• Description: After the conveyance motor (M203) turns ON, the M203 does not get to the predetermined speed within a specified period of time.
• Causes: FS control board (FSCB) PI drive board (PIDB) Conveyance motor (M203)

• Code: SC77-44
• Description: After the punch shift motor (M802) starts the home position search, the punch shift home sensor (PS803) does not turn ON even when a specified period of time elapses.
• Causes: FS control board (FSCB) Punch drive board (PDB)

• Code: SC77-47
• Description: Communication abnormality between FS-PK.
• Causes: FS control board (FSCB) Punch drive board (PDB)

• Code: SC77-52
• Description: After the 1st stopper motor (M2) starts the home position search, the 1st stopper home sensor (PS3) does not turn ON even when a specified period of time elapses.
• Causes: ZU control board (ZUCB) 1st stopper motor (M2) 1st stopper home sensor (PS3)

• Code: SC77-53
• Description: After the 2nd stopper motor (M3) starts the home position search, the 2nd stopper home sensor (PS4) does not turn ON even when a specified period of time elapses.
• Causes: ZU control board (ZUCB) 2nd stopper motor (M3) 2nd stopper home sensor (PS4)

• Code: SC77-54
• Description: After the punch clutch (CL1) turns on, the punch operation is not completed even when a specified period of time elapses. (The home punch sensor (PS6) does not turn OFF, or does not turn ON after being turned OFF.)
• Causes: ZU control board (ZUCB) Punch motor (M4) Punch clutch (CL1) Punch home sensor (PS6)