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ES 1220n Troubleshooting • 283
Print Quality Problems
Longitudinal white stripes
Longitudinal fading
Faint printing
Fading in patches
Remedy
Clean LED head with lens cleaner or soft tissue.
Change toner cartridge.
Change image drum.
Possible cause Remedy
LED head is dirty. Clean LED head with lens cleaner or soft tissue.
Toner is low. Change toner cartridge.
Paper is unsuitable for
printer.
Use recommended paper.
Possible cause Remedy
The toner cartridge is
incorrectly installed.
Reinstall the toner cartridge (see “Toner Cartridge
Replacement” on page 219).
Toner is low. Change toner cartridge (see “Toner Cartridge
Replacement” on page 219).
The paper is moist. Store paper within specified temperature and
humidity levels (see “Specifications” on
page 287).
Paper is unsuitable for
printer.
Use recommended paper (see“Media
Recommendations” on page 11 ).
Possible cause Remedy
The paper is moist. Store paper within specified temperature and
humidity levels (see “Specifications” on page 287).