Description: Charge roller current leak
The PWM duty output exceeded 60% for longer than 200 ms., indicating a leak in the charge roller current.
Causes: • Cartridge (charge roller) defective • High voltage supply board defective • Defective cartridge connection
Code: 320
Description: Polygon motor error
The polygon motor did not enter the lock state within 20 sec. after it switched on. -or- Once the polygon motor was detected in the lock state after started to rotate, within 0.6 sec. it entered the unlock state.. -or- After the polygon motor switched off, it did not enter unlock state within 20 sec.
Causes: • Polygon motor • Polygon motor cable
Code: 322
Description: 1st beam laser synchronization error
With all doors closed the polygon motor is locked and not rotating, or the laser synchronization detector could not detect 1st beam laser detection signal within 5 ms..
Causes: • Laser synchronization detector board out of position • Laser synchronization detector board or cable defective • Laser synchronization mirror out of position • LD unit defective • Engine board defective
Code: 323
Description: LD drive current exceeded
The LD driver detected an error for 500 ms.
Causes: • LD unit defective
Code: 326
Description: 2nd beam laser synchronization error
With all doors closed the polygon motor is locked and not rotating, or the laser synchronization detector could not detect 2nd beam laser detection signal within 500 ms.
Causes: • Laser synchronization detector board out of position • LD unit defective • Engine board defective
Code: 391
Description: Development bias leak
A development bias leak signal was detected for 200 ms.
Causes: • High voltage supply board defective • Defective cartridge connection