Epson AcuLaser C900 - Details of Print Quality Trouble and Remedy

EPSON AcuLaser C1900/AcuLaser C900 Revision B
Troubleshooting Details of Print Quality Trouble and Remedy 164
3.5 Details of Print Quality Trouble and Remedy
If any print quality problem occurs, replace the toner cartridge and the photoconductor
unit first, and determine whether the problem is caused by a cartridge or caused by the
printer.
Table 3-19. Troubleshooting for Print Quality Problems
Abnormal Image Cause Solution
All White
0951o211
Defective OPC Drum Replace the Photoconductor Unit.
Abnormal laser emission Replace the Print Head Unit.
Replace the Engine Board (PWB-A).
Defective developing bias Replace the Engine Board (PWB-A).
All Black
0951o213
Abnormal laser emission Replace Print Head.
Abnormal charging Replace the Engine Board (PWB-A).
White Out
0951o220
Paper is wet Replace paper.
Improper transfer Replace the Second Transfer Roller.
Replace the Engine Board (PWB-A).
Replace the Transfer Belt Unit.
Back of Paper Gets
Dirty
0951o226
Fusing roller is dirty Replace the Fusing Roller.
Transfer roller is dirty Replace the Second Transfer Roller.
Paper path is dirty Clean the Paper Path.
Low Image Density
0951o214
No toner in Toner
Cartridge
Replace the Toner Cartridge.
Defective OPC Drum
(life has expired)
Replace the Photoconductor Unit.
Defective developing bias Replace the Engine Board (PWB-A).
Improper transfer Replace the Second Transfer Roller.
Replace the Engine Board (PWB-A).
Replace the Transfer Belt Unit.
Table 3-19. Troubleshooting for Print Quality Problems (continued)
Abnormal Image Cause Solution