Epson AcuLaser C2600 Service Manual page 203

EPSON AcuLaser C2600/2600
PQT-22: INCONSISTENCIES IN DENSITY (PAPER FEED DIRECTION)
Symptom
The symptom occurs at random.
No. Cause
Photoconductor drum Check the electrode on the
grounding failure. bottom of the Photoconductor
unit for any dirt.
1 Replace the Electrode Assy.,
PC.
Replace the Photoconductor
unit.
Troubleshooting
PQT_020
Check Point Defect Parts
ELECTRODE Assy.,
PC
Photoconductor unit
Printing-quality troubleshooting (PQT)
PQT-23: INCONSISTENCIES IN DENSITY (VERTICAL TO THE PAPER
FEED DIRECTION)
Symptom
Printed area near the paper edges is light and faint.
No. Cause
1 Toner cartridge failure. Replace the Toner Cartridge.
Primary transfer contact Replace the TRANSFER
2
control failure. UNIT, Assy., ASP.
2ND TRANSFER Assy., Install the 2ND TRANSFER
3
ASP installation failure. Assy., ASP correctly.
2nd Transfer Roller Power the printer off and back
contact/noncontact on again.
control failure.
Perform Timing Adjustment.
4
(p.373)
Replace the 2nd Transfer
Clutch.
Wear of the Fuser Roller Replace the Fuser unit.
5 (rubber part comes loose
or is damaged).
Revision B
PQT_021
Check Point Defect Parts
Toner cartridge
TRANSFER UNIT,
Assy., ASP
---
CLUTCH, 2ND
TRANSFER
Fuser unit
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