Code :

Code: 442
Description: Image transfer belt contact motor error
The image transfer belt contact sensor does not detect the movement of actuator at the sensor while the polygon motor rotates.
Causes: Motor overload. Defective motor. Loose connection. Disconnected harness. Shorted 24 V fuse on the PSU. Defective interlock system. Defective IOB.
Remedy: • Replace the motor. • Reconnect the connector. • Replace the harness. • Shorted 24 V fuse on the PSU. • Replace the interlock switch. • Replace the IOB.

Code: 443
Description: Image transfer unit error
The machine detects the encoder sensor error.
Causes: Defective encoder sensor. Defective image transfer unit motor. Image transfer unit installation error. Loose connection. Broken harness.
Remedy: • Replace the image transfer unit. • Replace the image transfer unit motor. • Reinstall the image transfer unit. • Replace the encoder sensor. • Reconnect the connector. • Replace the harness.

Code: 452
Description: Paper transfer unit contact error
The paper transfer unit contact sensor does not detect the movement of actuator at the sensor while the polygon motor rotates.
Causes: Motor overload. Defective motor. Loose connection. Disconnected harness. Shorted 24 V fuse on the PSU. Defective interlock system. Defective IOB.
Remedy: • Replace the motor. • Reconnect the connector. • Replace the harness. • Shorted 24 V fuse on the PSU. • Repair the interlock system. • Replace the IOB.

Code: 460
Description: Separation power pack output error
An interrupt checks the status of the power pack every 20 ms. This SC is issued if the BCU detects a short in the power pack 10 times at D(ac).
Causes: High-voltage leak. Loose connection. Broken harness. Defective-high voltage supply unit.
Remedy: • Turn the main power switch off and on. • Reattach/replace the harness and parts on the high voltage power supply route. • Replace/reinstall the high-voltage supply unit.

Code: 490
Description: Toner transport 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: Defective motor. Loose connection. Broken harness. Defective IOB.
Remedy: • Replace the motor. • Reconnect the connector. • Replace the harness. • Replace the IOB.

Code: 491
Description: High voltage power: Drum / development bias output error
An error signal is detected for 200 ms when charging the drum or development.
Causes: High voltage leak. Loose connection. Broken harness. Defective drum unit or development unit. Defective high voltage supply unit.
Remedy: • Turn the main power switch off and on. • Reattach/replace the harness and parts on the high voltage power supply route. • Replace the drum unit or development unit. • Replace the high voltage supply unit.

Code: 492
Description: High voltage power: Image transfer / paper transfer bias output error
An error signal is detected for 200 ms when charging the separation, image transfer bet or paper transfer roller.
Causes: High voltage leak. Broken harness Defective image transfer belt unit or paper transfer unit. Defective high voltage supply unit.
Remedy: • Turn the main power switch off and on. • Reattach/replace the harness and parts on the high voltage power supply route. • Replace/reinstall the high-voltage supply unit. • Replace the high voltage supply unit.

Code: 497
Description: Temperature sensor error
If the output value of the thermal sensor is 0.5 V or lower or 2.8 V or higher, it is judged as a sensor error and the presumptive temperature, 23 °C, is applied. If the thermal sensor is judged to have encountered a sensor error three times consecutively, the machine issues SC497-00, stops using the sensor, and feeds back the presumptive value. * However, if the power is switched off and then back on, the machine resumes its attempt to use the sensor.
Causes: Loose connection/Disconnected connector. Defective sensor.
Remedy: • Clean/Replace the sensor. • Reconnect the connector. • Check the harness