Epson EPL-5500W Service Manual page 82

EPL-5500W Service Manual
Table 5-12. Print Quality Anomalies (Continued)
Symptom Possible Cause
Blank print
Poor
development
Improper
charging
Poor image
transfer
Improper print
density setting
Defective optical
unit
Black print
Improper
charging
Poor
development
Improper print
density setting
Defective optical
unit
White/black lines
and bands.
Improper
charging
Poor
development
Dirt on the fusing
roller
Rev. A
Part Name Check Item
Check whether the
Imaging
toner cartridge is
cartridge
installed properly.
PWB-F board —
PWB-F board —
Check the surface of
Image transfer
the image transfer
unit
unit.
PWB-F board —
— —
Optical unit —
Photoconduc-
—
tor unit
PWB-F board —
Toner
—
cartridge
PWB-F board
— —
Optical unit —
Photoconduc-
—
tor unit
PWB-F board —
Toner
—
cartridge
Fusing roller —
Troubleshooting
Remedy
Reinstall the toner
cartridge.
Replace the PWB-F
board.
Replace the PWB-F
board.
Replace the image
transfer unit.
Replace the PWB-F
board.
Adjust the print
density using the
printer settings.
Replace the optical
unit.
Replace the
photoconductor unit.
Replace the PWB-F
board.
Replace the toner
cartridge.
Replace the PWB-F
board.
Adjust the print
density using the
printer settings.
Replace the optical
unit.
Replace the imaging
cartridge.
Replace the PWB-F
board.
Replace the toner
cartridge.
Clean the fusing roller.
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