Description: Development bias leak
Development bias leak signal was detected.
Causes: • Development roller defective • High voltage supply board defective
Code: 392
Description: Developer initialization error
Error reading ID sensor pattern during developer initialization.
Causes: • Forgot to remove heat seal from replacement PCU • ID sensor defective • TD sensor defective • Drum is not turning • Development roller is not turning • Right door not closed firmly
Code: 401
Description: Transfer roller leak error 1 ("+" leak)
A current leak signal for the transfer roller was detected. (Current feedback signal was not detected for at least 200ms).
Causes: • Transfer roller damaged • High voltage supply board defective • Poor connection between transfer unit and machine • Transfer unit set incorrectly
Code: 402
Description: Transfer roller leak error 2 ("-" leak)
A current leak signal for the transfer roller was detected. (Current feedback signal was not detected for at least 200ms).
Causes: • Transfer roller damaged • High voltage supply board defective • Poor connection between transfer unit and machine • Transfer unit set incorrectly
Code: 500
Description: Main motor lock error
Failed to detect main motor lock signal for 7 checks in succession (total of 700ms) after main motor started to rotate, or after last lock signal was detected.
Causes: • Main motor defective • Too much load on the drive mechanism • Motor driver damaged
Code: 541
Description: Fusing thermistor open
Thermistor generated abnormal values immediately after 24V power on.
Causes: • Fusing thermistor defective or disconnected • Fusing lamp defective • Fuse blown • PSU defective • Bad connection between fuser and machine