7.13
PROBLEM SOLVING
Problem
Solution
If the amount of background shading becomes unacceptable,
the procedures below may fix the problem.
• Change to a lighter weight pages. See “Paper
Specifications” on page A.2.
• Check the printer’s environment; very dry (low humidity)
or high humidity (higher than 80% RH) conditions can
increase the amount of background shading.
• Install a new toner cartridge.
Gray background
• Clean the inside of the printer. See “Cleaning the Inside” on
page 6.4.
• Check the paper type and quality. See “Paper Specifications”
on page A.2.
• Install a new toner cartridge.
Toner smear
If marks repeatedly appear on the printed side of the page at
even intervals:
• The toner cartridge may be damaged. If a repetitive mark
occurs on the page, print a cleaning sheet several times to
clean the cartridge (see page 6.5). After the printout, if
you still have the same problems, install a new toner
cartridge.
• Parts of the printer may have toner on them. If the defects
occur on the back of the page, the problem will likely
correct itself after a few more pages.
• The fusing assembly may be damaged. Contact a service
representative.
Vertical repetitive
defects
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