Details Of Print Quality Trouble And Remedy - Epson AcuLaser C1900 Service Manual

EPSON AcuLaser C1900/AcuLaser C900

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
All White Defective OPC Drum
Abnormal laser emission
Defective developing bias Replace the Engine Board (PWB-A).
0951o211
All Black Abnormal laser emission
Abnormal charging
0951o213
Troubleshooting
Solution
Replace the Photoconductor Unit.
Replace the Print Head Unit.
Replace the Engine Board (PWB-A).
Replace Print Head.
Replace the Engine Board (PWB-A).
Details of Print Quality Trouble and Remedy
Table 3-19. Troubleshooting for Print Quality Problems (continued)
Abnormal Image Cause
White Out Paper is wet
Improper transfer
0951o220
Back of Paper Gets Fusing roller is dirty
Dirty
Transfer roller is dirty
Paper path is dirty
0951o226
Low Image Density No toner in Toner
Cartridge
Defective OPC Drum
(life has expired)
Defective developing bias Replace the Engine Board (PWB-A).
Improper transfer
0951o214
Revision B
Solution
Replace paper.
Replace the Second Transfer Roller.
Replace the Engine Board (PWB-A).
Replace the Transfer Belt Unit.
Replace the Fusing Roller.
Replace the Second Transfer Roller.
Clean the Paper Path.
Replace the Toner Cartridge.
Replace the Photoconductor Unit.
Replace the Second Transfer Roller.
Replace the Engine Board (PWB-A).
Replace the Transfer Belt Unit.
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