Description: Polygon Motor Error 3: XSCRDY Signal Error
The machine does detect the polygon motor unlock signal for 0.2 seconds after the polygon motor has turned on.
Causes: • Polygon motor defective • SCRATCH error • I/F harness disconnected or loose
Code: 220
Description: Laser synchronization error
The main scan synchronization detector board cannot detect the laser synchronization signal for more than 5 consecutive 100 ms intervals.
Causes: • Poor connection between the LD unit and the BICU board • Damaged cable between BICU and LD unit • LD unit out of position • LD unit defective • BICU board defective
Code: 230
Description: No laser writing signal (F-GATE) error
The laser-writing signal (F-GATE) fails to turn Low after the laser crosses 5 mm on the drum surface from the laser writing start position.
Causes: • BICU board defective • The fax controller or printer controller has a poor connection • Fax controller or printer controller defective
Code: 302
Description: Charge roller current leak
A current leak signal for the charge roller is detected.
Causes: • Charge roller damaged • High voltage supply board defective • Poor connection of the PCU
Code: 390
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