• Code: SC721-59
• Description: Paper Bundle Transport Lower Pressure Release Motor Error (1K sheet finisher) • During movement to home, the home position could not be detected within a predetermined pulse (p0 pulse) (1st time is jam notification, 2nd time is SC notification). • During movement from home, the home position was detected for longer than a predetermined pulse (p1 pulse) (1st time is jam notification, 2nd time is SC notification). The return pulse to home and pulse coming from home during normal operation are calculated and measured. The pulses which are 1.5-2 times the normal operation pulse are taken as p0 and p1.
• Causes: • Motor defective • Connector disconnected • Overload • HP sensor defective
• Remedy: • Replace the paper bundle transport lower pressure release motor • Reset the connector • Replace paper bundle transport lower pressure release HP sensor • Replace the harness • Replace the main board of the finisher

• Code: SC721-70
• Description: Tray Lift Motor Error (1K sheet finisher) • Motor driver detects an error (short-circuit or overheating) (1st time is SC). • During descent, the paper surface sensor still detects paper even after a predetermined time (t0sec) elapses (1st time is jam notification, 2nd time is SC notification). • During ascent, the paper surface sensor could not detect the paper surface even after a predetermined time (t0sec) elapses (1st time is jam notification, 2nd time is SC notification). The return pulse to home and pulse coming from home during normal operation are calculated and measured. The pulses which are 1.5-2 times the normal operation pulse are taken as p0 and p1.
• Causes: • Motor defective • Connector disconnected • Overload • Paper surface sensor defective
• Remedy: • Replace the tray lift motor • Reset the connector • Replace the following sensors: Shift tray paper surface sensor, Shift tray lower limit sensor (upper) or Shift tray upper limit sensor (lower) • Replace the harness • Replace the main board of the finisher

• Code: SC721-71
• Description: Shift Motor 1 Error (1K sheet finisher) • During movement to home, the home position could not be detected within a predetermined pulse (p0 pulse) (1st time is jam notification, 2nd time is SC notification). • During movement from home, the home position was detected for longer than a predetermined pulse (p1 pulse) (1st time is jam notification, 2nd time is SC notification). The return pulse to home and pulse coming from home during normal operation are calculated and measured. The pulses which are 1.5-2 times the normal operation pulse are taken as p0 and p1.
• Causes: • Motor defective • Connector disconnected • Overload • HP sensor defective
• Remedy: • Replace the shift motor • Reset the connector • Replace the shift HP sensor • Replace the harness • Replace the main board of the finisher

• Code: SC721-80
• Description: Folding Transport Motor Error (1K sheet finisher) • Motor driver detects an error (short-circuit or overheating) (1st time is SC)
• Causes: • Motor defective • Connector disconnected • Overload
• Remedy: • Replace folding transport motor • Reset the connector • Replace the main board of the finisher

• Code: SC723-03
• Description: Power Supply Error (Internal Finisher: Non-Staple Bind) When original source 24V power supply is ON, protection device intercept of non-interlock power supply system is detected.
• Causes: A motor failure or harness short-circuit occur in the non-interlock power supply system.
• Remedy: • Replace the short-circuited harnesses • Replace the protection devices

• Code: SC723-10
• Description: Transport Motor Error (Internal Finisher: Non-Staple Bind) The DCM driver error detection is started after reset, and predetermined milliseconds error signal is detected. This SC will be issued when the above phenomenon repeated 2 times.
• Causes: • Transport Motor failure • Harness short-circuit • Circuit board failure • Over current • Abnormal temperature
• Remedy: • Replace the motor • Replace the harness • Replace the circuit board.

• Code: SC723-20
• Description: Junction Solenoid Motor Error (Internal Finisher: Non-Staple Bind) When the junction claw HP sensor was not turned off while predetermined seconds applied to the solenoid motor with the HP sensor turned on. When the junction claw HP sensor was not turned on while predetermined seconds applied to the solenoid motor with the HP sensor turned off. This SC will be issued when the above phenomenon repeated 2 times.
• Causes: • Junction Solenoid Motor failure • Connector disconnected • Over load • Junction claw HP sensor error
• Remedy: • Check the connection • Replace the motor/sensor • Replace the harness

• Code: SC723-24
• Description: Exit Paper Pressure Motor Error (Internal Finisher: Non-Staple Bind) When the exit paper pressure HP sensor was not turned off while predetermined seconds applied to the exit pressure release motor with the HP sensor turned on. When paper output pressure HP sensor was not turned on while predetermined seconds applied to the exit pressure release motor with the HP sensor turned off. This SC will be issued when the above phenomenon repeated 2 times.
• Causes: • Exit Pressure Release Motor failure • Connector disconnected • Over load • Exit pressure release HP sensor error
• Remedy: • Check the connection • Replace the motor/sensor • Replace the harness