Description: Polygon motor error
The polygon motor does not reach its operating speed within 20 seconds after the polygon motor on signal, or the lock signal is still activated for more than 20 seconds after the polygon motor off signal.
Causes: • Polygon motor defective • Poor connection between the polygon motor driver and the BICU board • BICU board defective
Code: SC321
Description: No laser writing signal (F-GATE) error 1
The laser writing signal (F-GATE) does not go to LOW for more than 15 seconds after the copy paper reaches the registration sensor.
Causes: • BICU board defective • Poor connection of the fax controller or printer controller • Fax controller or printer controller defective
Code: SC322
Description: 1st laser synchronization error
The 1st laser synchronization signal cannot be detected by the main scan synchronization detector board even if the laser diodes are activated.
Causes: • Poor connection between the laser synchronization detector board and the LD unit. • Laser synchronization detector board out of position • Laser synchronization detector board defective • LD unit defective
Code: SC323
Description: LD drive current over
The LD drive board applies more than 110 mA to the LD.
Causes: • LD unit defective (not enough power, due to aging) • Poor connection between the LD unit and the BICU board • BICU defective
Code: SC326
Description: 2nd laser synchronization error
The 2nd laser synchronization signal cannot be detected by the main scan synchronization detector board even if the laser diodes are activated.
Causes: • Poor connection between the laser synchronization detector board and the LD unit. • Laser synchronization detector board out of position • Laser synchronization detector board defective • LD unit defective
Code: SC327
Description: LD unit home position error 1
The LD unit home position sensor does not detect an on condition when the LD unit moves to its home position.
Causes: • LD unit home position sensor defective • LD positioning motor defective • LD unit movement blocked because of incorrect connector routing