Description: TD sensor error
The TD sensor outputs less than 0.2 V or more than 4.0 V 10 times consecutively during copying.
Causes: • TD sensor abnormal • Poor connection of the PCU
Code: 391
Description: Development bias leak
A development bias leak signal is detected.
Causes: • Poor connection of the PCU • High voltage supply board defective
Code: 392
Description: TD sensor initial setting error
TD sensor initial setting is not performed correctly.
Causes: • ID sensor defective • No developer • Drum does not turn • Development roller does not turn • Poor connection of the PCU • The voltage is not applied to charge roller
Code: 401
Description: Transfer roller leak error 1
A current leak signal for the transfer roller is detected. A current feedback signal for the transfer roller is not detected.
Causes: • High voltage supply board defective • Poor connection of the PCU • Transfer/separation unit set incorrectly • Transfer roller damaged
Code: 402
Description: Transfer roller leak error 2
A current leak signal for the transfer roller is detected. A current feedback signal for the transfer roller is not detected.
Causes: • High voltage supply board defective • Poor connection of the PCU • Transfer/separation unit set incorrectly • Transfer roller damaged
Code: 500
Description: Main motor lock
A main motor lock signal is not detected for more than 7 consecutive checks (700 ms) after the main motor starts to rotate, or the lock signal is not detected for more than 7 consecutive checks during rotation after the last signal.
Causes: • Too much load on the drive mechanism • Main motor defective