• Code: SC721-42
• Description: Stapler Displacement Motor Error (1000-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 even after a predetermined pulse (p1 pulse) elapsed (1st time is jam notification, 2nd time is SC notification). • During movement from home, retreat sensor ON could not be detected even after a predetermined pulse (p2 pulse) elapsed (1st time is jam notification, 2nd time is SC notification). • During initialization, retreat sensor ON was detected simultaneously when the home position is detected (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, p1 and p2.
• Causes: • Motor defective • Connector disconnected • Overload • Home position sensor error • Retreat sensor error
• Remedy: • Replace the motor. • Reset the connector. • Replace the harness. • Replace the home position sensor • Replace the finisher main board.

• Code: SC721-44
• Description: Stapler Motor Error (1000-sheet finisher) • During movement to home, the home position could not be detected even after a predetermined time (t0 sec) elapsed (1st time is jam notification, 2nd time is SC notification). • During movement from home, the home position was detected even after a predetermined time (t1 sec) elapsed (1st time is jam notification, 2nd time is SC notification). • During motor drive, the output from the encoder could not be counted for a predetermined number of times within a predetermined time (t0 sec) (1st time is jam notification, 2nd time is SC notification). The time to return to home without fail, the time coming from home, and the time for which the encoder output can be counted during normal operation, are taken as t0, t1 and t2.
• Causes: • Needle jam • Motor defective • Connector disconnected • Overload • Home position sensor error • Encoder error
• Remedy: • Replace the motor. • Reset the connector. • Replace the harness. • Replace the home position sensor • Replace the finisher main board.

• Code: SC721-52
• Description: Folding Plate Drive Motor Error (1000-sheet finisher) • Motor driver detects an error (short-circuit and overheating) (1st time is SC). • 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 • Home position sensor (folding blade HP) error • Home position sensor (folding cam HP) error
• Remedy: • Replace the motor. • Reset the connector. • Replace the harness. • Replace the home position sensor • Replace the finisher main board.

• Code: SC721-53
• Description: Rear End Fence Displacement Motor Error (1000-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 • Reset the connector. • Overload • Home position sensor error
• Remedy: • Replace the motor. • Reset the connector. • Replace the harness. • Replace the home position sensor • Replace the finisher main board.

• Code: SC721-58
• Description: Bundle Transport 1 Release Motor Error (1000-sheet finisher)
• Causes: • 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. • Motor defective • Reset the connector. • Overload • Home position sensor error
• Remedy: • Replace the motor. • Reset the connector. • Replace the harness. • Replace the home position sensor • Replace the finisher main board.

• Code: SC721-59
• Description: Bundle Transport 2 Release Motor Error (1000-sheet finisher)
• Causes: • 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. • Motor defective • Reset the connector. • Overload • Home position sensor error
• Remedy: • Replace the motor. • Reset the connector. • Replace the harness. • Replace the home position sensor • Replace the finisher main board.

• Code: SC721-70
• Description: Tray 1 Lift Motor Error (1000-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 • Reset the connector. • Overload • Paper surface sensor error
• Remedy: • Replace the motor. • Reset the connector. • Replace the harness. • Replace the home position sensor • Replace the finisher main board.

• Code: SC721-71
• Description: Shift Motor 1 Error (1000-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 • Reset the connector. • Overload • Home position sensor error
• Remedy: • Replace the motor. • Reset the connector. • Replace the harness. • Replace the home position sensor • Replace the finisher main board.