• Code: 390-02
• Description: Drum gear position sensor error: C
  The machine does not detect the drum position signal for 3 seconds at the drum phase adjustment.
• Causes: Dirty sensor. Defective sensor. The connection is faulty. Broken harness. Clean/replace the sensor.
• Remedy: • Clean/replace the sensor. • Reconnect the connector. • Check the harness and other parts to solve the problem, and then turn the power on.

• Code: 390-03
• Description: Drum gear position sensor error: M
  The machine does not detect the drum position signal for 3 seconds at the drum phase adjustment.
• Causes: Dirty sensor. Defective sensor. The connection is faulty. Broken harness. Clean/replace the sensor.
• Remedy: • Clean/replace the sensor. • Reconnect the connector. • Check the harness and other parts to solve the problem, and then turn the power on.

• Code: 390-04
• Description: Drum gear position sensor error: Y
  The machine does not detect the drum position signal for 3 seconds at the drum phase adjustment.
• Causes: Dirty sensor. Defective sensor. The connection is faulty. Broken harness. Clean/replace the sensor.
• Remedy: • Clean/replace the sensor. • Reconnect the connector. • Check the harness and other parts to solve the problem, and then turn the power on.

• Code: 396-01
• Description: Drum/Development motor error: K
  The machine detects a High signal from the drum/development motor for 100 ms after the drum/development motor turned on.
• Causes: Overload on the drum/development motor. Defective drum/development motor. Loose connection. Defective harness. Shorted 24 V fuse on the PSU. Defective interlock system.
• Remedy: • Replace the motor. • Reconnect the connector. • Replace the harness. • Shorted 24 V fuse on the PSU. • Repair the interlock system.

• Code: 396-02
• Description: Drum/Development motor error: C
  The machine detects a High signal from the drum/development motor for 100 ms after the drum/development motor turned on.
• Causes: Overload on the drum/development motor. Defective drum/development motor. Loose connection. Defective harness. Shorted 24 V fuse on the PSU. Defective interlock system.
• Remedy: • Replace the motor. • Reconnect the connector. • Replace the harness. • Shorted 24 V fuse on the PSU. • Repair the interlock system.

• Code: 396-03
• Description: Drum/Development motor error: M
  The machine detects a High signal from the drum/development motor for 100 ms after the drum/development motor turned on.
• Causes: Overload on the drum/development motor. Defective drum/development motor. Loose connection. Defective harness. Shorted 24 V fuse on the PSU. Defective interlock system.
• Remedy: • Replace the motor. • Reconnect the connector. • Replace the harness. • Shorted 24 V fuse on the PSU. • Repair the interlock system.

• Code: 396-04
• Description: Drum/Development motor error: Y
  The machine detects a High signal from the drum/development motor for 100 ms after the drum/development motor turned on.
• Causes: Overload on the drum/development motor. Defective drum/development motor. Loose connection. Defective harness. Shorted 24 V fuse on the PSU. Defective interlock system.
• Remedy: • Replace the motor. • Reconnect the connector. • Replace the harness. • Shorted 24 V fuse on the PSU. • Repair the interlock system.

• Code: 441
• Description: Image transfer unit motor error
  When the motor is ON, the machine monitors the lock signals every 100 ms. If the High status occurs 20 times consecutively, the machine judges that the motor is not rotating correctly.
• Causes: Motor overload. Defective motor. Loose connection. Broken harness. Shorted 24 V fuse on the PSU. Defective interlock systeme PSU.
• Remedy: • Replace the motor. • Reconnect the connector. • Replace the harness. • Shorted 24 V fuse on the PSU. • Repair the interlock system