Condition Example Suggested solutions
White Spots If white spots appear on the page:
●
The paper is too rough and a lot of dirt from paper falls to the
inner components within the machine, so the transfer roller
may be dirty. Clean the inside of your machine.
●
The paper path may need cleaning. Clean the inside of your
machine.
If these steps do not correct the problem, contact a service
representative.
Vertical lines If black vertical streaks appear on the page:
●
The surface (drum part) of the cartridge inside the machine
has probably been scratched. Remove the cartridge and install
a new one.
If white vertical streaks appear on the page:
●
The surface of the LSU part inside the machine may be dirty.
Clean the inside of your machine. If cleaning does not correct
the problem, contact a service representative.
Black or color background
●
Change to a lighter weight paper.
●
Check the environmental conditions: very dry conditions or a
high level of humidity (higher than 80% RH) can increase the
amount of background shading.
●
Remove the old toner cartridge and install a new one.
●
Thoroughly redistribute the toner.
Toner smear
●
Clean the inside of the machine.
●
Check the paper type and quality.
●
Remove the toner cartridge and install a new one.
Vertical repetitive defects If marks repeatedly appear on the printed side of the page at even
intervals:
●
The toner cartridge may be damaged. If you still have the
same problem, remove the toner cartridge and, install a new
one .
●
Parts of the machine 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.
ENWW Printing quality problems 135
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