Description: Charge roller current leak A charge roller current leak signal is detected.
Causes: • Cartridge (charge roller) defective • High voltage supply board defective • Poor cartridge connection
Code: 320
Description: Polygon motor error The polygon motor does not reach its operating speed within 10 seconds after the polygon motor on signal, or the lock signal is not detected for more than a certain time during operation.
Causes: • Polygon motor • Polygon motor cable
Code: 322
Description: 1st laser synchronization error The laser synchronization detector cannot detect the laser synchronization signal for more than 5 consecutive 100 ms intervals.
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 detects this error for more than 500 ms.
Causes: • LD unit defective
Code: 326
Description: 2nd laser synchronization error The 1st LD1 is already on, but the laser synchronization detector cannot detect the laser synchronization signal from the 2nd LD for more than 5 consecutive 100 ms intervals.
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 is detected.
Causes: • High voltage supply board defective • Poor cartridge connection