• Code: SC521
• Description: Paper table lock (paper table height sensor) When the table moves upwards, the sensor does not change status for more than 7.5 seconds after the paper table motor on signal is generated.
• Causes: • Defective sensor • Defective motor • Mechanism blocked by foreign material • Defective gear • A spring has come off

• Code: SC550
• Description: Duplex clamper motor Duplex clamper HP sensor does not turn OFF after 2 seconds when duplex control.goes to home position. Duplex clamper HP sensor does not turn ON after 2 seconds when duplex control goes to home position but is not at home position.
• Causes: • Duplex clamper HP sensor error • Duplex board error • Motor locked from other cause

• Code: SC551
• Description: Paper guide motor Paper guide HP sensor does not turn OFF after 3 seconds when duplex control goes to home position. Paper guide HP sensor does not turn ON after 3 seconds when duplex control goes to home position but is not at home position.
• Causes: • Paper guide HP sensor error • Duplex board error • Motor locked from other cause

• Code: SC552
• Description: Exit pawl pump motor Exit pawl pump HP sensor does not turn OFF after 6 seconds when duplex control goes to home position. Exit pawl pump HP sensor does not turn ON after 6 seconds when duplex control goes to home position but is not at home position.
• Causes: • Exit pawl pump HP sensor error • Motor locked from other cause

• Code: SC553
• Description: Junction gate motor Junction gate HP sensor does not turn OFF after 6 seconds when duplex control goes to home position. Junction gate HP sensor does not turn ON after 6 seconds when duplex control goes to home position but is not at home position.
• Causes: • Junction gate HP sensor error • Motor locked from other cause

• Code: SC554
• Description: Duplex unit lock release solenoid Duplex unit lock release sensor does not turn OFF before 3 seconds when the duplex unit lock release solenoid is ON. Duplex unit lock release sensor does not turn ON before 3 seconds when the duplex unit lock release solenoid is OFF.
• Causes: • Duplex unit lock release solenoid error • Duplex unit lock release sensor error • Mechanism blocked by foreign material

• Code: SC555
• Description: Drum lock release solenoid When the drum lock release sensor does not turn OFF before 3 seconds when the drum lock release solenoid is ON. When the drum lock release sensor does not turn ON before 3 seconds when the drum lock release solenoid is OFF
• Causes: • Drum lock release solenoid error • Drum lock release sensor error • Mechanism blocked by foreign material

• Code: SC556
• Description: Pressure cam shift motor Pressure cam HP sensor does not turn ON after 100 pulses from the front or back cam position. If pressure cam HP sensor does not turn ON to OFF after 64 pulses when the cam moves to the front or back printing position. Pressure cam HP sensor does not turn ON after initialization check when turning ON main switch.
• Causes: • Pressure cam HP sensor error • Duplex board error • Mechanism blocked by foreign material