• Code: SC70-01
• Description: Communication error.
• Causes: FS control board (FSCB) connector

• Code: SC70-02
• Description: Start-up response error.
• Causes: FS control board (FSCB) connector

• Code: SC77-01
• Description: The shift unit does not get to the shift position or the HP within a specified period of time.
• Causes: FS control board (FSCB) Shift roller motor (M2) Shift roller home sensor (PS18)

• Code: SC77-02
• Description: After start-up of the main tray up/ down motor (M3) operation, the main tray upper limit sensor (PS2) or the stapler paper exit upper limit sensor (PS7) does not turn ON within a specified period of time.
• Causes: FS control board (FSCB) Main tray lift motor (M3) Main tray upper limit sensor (PS2) Stapler paper exit upper limit sensor (PS7)

• Code: SC77-03
• Description: After start-up of the alignment motor /Up (M5) operation, the alignment home sensor /Up (PS8) does not turn OFF within a specified period of time. Or, it does not turn ON after being turned OFF.
• Causes: FS control board (FSCB) Relay board (RB) Alignment motor /Up (M5) Alignment home sensor /Up (PS8)

• Code: SC77-04
• Description: After start-up of the paper exit roller motor (M7) operation, a predetermined speed is not obtained within a specified period of time.
• Causes: FS control board (FSCB) Paper exit roller motor (M7)

• Code: SC77-05
• Description: After start-up of the paper exit opening motor (M8) operation, the open/close operation is not completed within a specified period of time. (The paper exit opening home sensor (PS12) does not turn ON or OFF.)
• Causes: FS control board (FSCB) Paper exit motor (M8) Paper exit home sensor (PS12)

• Code: SC77-06
• Description: After start-up of the stapler movement motor (M11) operation, the stapler movement home sensor (PS11) does not turn OFF. Or, it does not turn ON after being turned OFF.
• Causes: FS control board (FSCB) Stapler movement motor (M11) Relay board (RB) Stapler movement home sensor (PS11)