Epson AcuLaser C2600 Service Manual page 202

EPSON AcuLaser C2600/2600
PQT-20: INCONSISTENCIES IN DENSITY (PAPER FEED DIRECTION)
Symptom
The symptom appears cyclically.
No. Cause
0.35 mm cycle = LSU Replace the LSU.
1 Scanner Motor rotating
cycle
24 mm cycle = Replace the Toner Cartridge.
2 Development Supply
Roller cycle
36 mm cycle = Developer Replace the Toner Cartridge.
3
Roller cycle
51 mm cycle = Primary Replace the TRANSFER
4 Transfer Backup Roller UNIT, Assy., ASP.
cycle
57 mm cycle = 2nd Replace the 2nd Transfer
5
Transfer Roller cycle Roller.
91 mm cycle = 2nd Replace the TRANSFER
6 Transfer Backup Roller UNIT, Assy., ASP.
cycle
108 mm cycle = Fuser Replace the Fuser unit.
7
Roller cycle
112 mm = Fuser Pressure Replace the Fuser unit.
8
Roller cycle
141 mm cycle = OPC Replace the Photoconductor
9
cycle unit.
Troubleshooting
PQT_019
Check Point Defect Parts
Laser Scanner
Toner cartridge
Toner cartridge
TRANSFER UNIT,
Assy., ASP
ROLLER, 2ND
TRANSFER UNIT,
Assy., ASP
Fuser unit
Fuser unit
Photoconductor unit
Printing-quality troubleshooting (PQT)
PQT-21: INCONSISTENCIES IN DENSITY (PAPER FEED DIRECTION)
Symptom
The symptom appears only for a certain color.
No. Cause
1 Toner cartridge failure Replace the Toner cartridge.
Revision B
Check Point Defect Parts
Toner cartridge
202