Description: TD sensor error 1
The TD sensor outputs less than 0.5V or more than 4.0V 10 times consecutively during copying.
Causes: • TD sensor abnormal • Poor connection of the PCU
Code: SC391
Description: Development bias leak
A development bias leak signal is detected.
Causes: • Poor connection of the PCU • High voltage supply board defective
Code: SC392
Description: TD sensor initial setting error
TD sensor output voltage falls out of the adjustment range (2.0 +- 0.2 V) after the TD sensor initial setting has been finished.
Causes: • Someone forgot to remove the toner seal of the PCU • ID sensor defective • TD sensor abnormal • Drum does not turn • Development roller does not turn • Poor connection of the PCU
Code: SC401
Description: Transfer roller leak error 1
A transfer roller current leak signal is detected. The 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: SC402
Description: Transfer roller leak error 2
A transfer roller current leak signal is detected. The 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: SC411
Description: Separation bias leak error
A separation bias leak signal is detected.
Causes: • High voltage supply board defective • Poor connection of the PCU • Discharge plate defective