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Table 5-12. Print Quality Anomalies (Continued)
Symptom Possible Cause Part Name Check Item Remedy
Blank print
Poor
development
Imaging
cartridge
Check whether the
toner cartridge is
installed properly.
Reinstall the toner
cartridge.
PWB-F board —
Replace the PWB-F
board.
Improper
charging
PWB-F board —
Replace the PWB-F
board.
Poor image
transfer
Image transfer
unit
Check the surface of
the image transfer
unit.
Replace the image
transfer unit.
PWB-F board —
Replace the PWB-F
board.
Improper print
density setting
——
Adjust the print
density using the
printer settings.
Defective optical
unit
Optical unit —
Replace the optical
unit.
Black print
Improper
charging
Photoconduc-
tor unit
—
Replace the
photoconductor unit.
PWB-F board —
Replace the PWB-F
board.
Poor
development
Toner
cartridge
—
Replace the toner
cartridge.
PWB-F board
Replace the PWB-F
board.
Improper print
density setting
——
Adjust the print
density using the
printer settings.
Defective optical
unit
Optical unit —
Replace the optical
unit.
White/black lines
and bands.
Improper
charging
Photoconduc-
tor unit
—
Replace the imaging
cartridge.
Poor
development
PWB-F board —
Replace the PWB-F
board.
Toner
cartridge
—
Replace the toner
cartridge.
Dirt on the fusing
roller
Fusing roller — Clean the fusing roller.
EPL-5500W Service Manual Troubleshooting
Rev. A 5-9