7.14
Solving Print Quality Problems
If the amount of background toner shading becomes
unacceptable, the following procedures may clear the
condition:
• Change the print media to a lighter basis weight. See “Print
Media Specifications” on page A.3.
• Check the printer environment; very dry (low humidity) or
high humidity (higher than 80% relative humidity) conditions
can increase the amount of background shading.
• Install a new print cartridge.
Gray background
• Clean the inside of the printer. See “Cleaning the Inside” on
page 6.6.
• Check the type and quality. See “Print Media Specifications”
on page A.3.
• Install a new print cartridge.
Toner smear
If marks repeatedly appear on the printed side of the page at
even intervals:
• The print cartridge may be damaged. If a repetitive mark
occurs every 95 mm or 38 mm on the page, print a cleaning
sheet several times to clean the cartridge (see “Printing a
Cleaning Sheet” on page 6.8). After the printout, if you still
have the same problems, install a new print cartridge.
• Parts in the printer may have toner on them. If the defects
occur on the back of the page, the problem corrects itself
after a few more pages.
• The fusing assembly may be damaged. Contact a service
representative.
Vertical repetitive
defects
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