Epson AcuLaser C2600 Service Manual page 200

EPSON AcuLaser C2600/2600
PQT-16: PRINTED IMAGE IS LIGHT OR FAINT, OR TOO DARK
Symptom
All of the four colors are too dark.
No. Cause
Density adjustment Replace the Toner cartridge.
failure.
Open and close the Cover D
to clean the density sensor.
Clean the exposure window.
Clean the charge wire.
Replace the Photoconductor
1
unit.
Replace the TRANSFER
UNIT, Assy., ASP.
Replace the engine controller
board.
Replace the controller board
or PROM DIMM.
Troubleshooting
PQT_016
Check Point Defect Parts
Toner cartridge
Photoconductor unit
TRANSFER UNIT,
Assy., ASP
BOARD ASSY.,
MAIN C585 MCU
BOARD ASSY.,
MAIN C585 MAIN
BOARD ASSY.,
MEMORY, C533
PROG (59571)
Printing-quality troubleshooting (PQT)
PQT-17: PRINTED IMAGE IS LIGHT OR FAINT, OR TOO DARK
Symptom
Only a certain color is too dark.
No. Cause
Density adjustment Replace the Toner cartridge.
1
failure.
2 Toner Cartridge failure Replace the Toner cartridge.
Revision B
PQT_015
Check Point Defect Parts
Toner cartridge
Toner cartridge
200