Dell 1135N User Guide - Page 123

Printing Preferences, Paper, Thick, White Spots

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Dropouts White Spots Vertical lines Black background Toner smear Vertical repetitive defects Background scatter The transfer roller may be dirty. Clean the inside of your machine. Contact a service representative. The paper path may need cleaning. Contact a service representative. If faded areas, generally rounded, occur randomly on the page: A single sheet of paper may be defective. Try reprinting the job. The moisture content of the paper is uneven or the paper has moist spots on its surface. Try a different brand of paper (See Print media specifications ). The paper lot is bad. The manufacturing processes can cause some areas to reject toner. Try a different kind or brand of paper. Change the printer option and try again. Go to Printing Preferences, click Paper tab, and set type to Thick (See Opening printing preferences). If these steps do not correct the problem, contact a service representative. If white spots appear on the page: The paper is too rough and a lot of dirt from a paper falls to the inner devices within the machine, so the transfer roller may be dirty. Clean the inside of your machine (See Cleaning the inside). The paper path may need cleaning (See Cleaning the inside). If black vertical streaks appear on the page: The surface (drum part) of the toner cartridge inside the machine has probably been scratched. Remove the toner cartridge and install a new one (See Replacing the toner cartridge). If white vertical streaks appear on the page: The surface of the LSU part inside the machine may be dirty (See Cleaning the inside). If the amount of background shading becomes unacceptable: Change to a lighter weight paper (See Print media specifications ). 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 (See Replacing the toner cartridge). If toner smears on the page: Clean the inside of the machine (See Cleaning the inside). Check the paper type and quality (See Print media specifications ). Remove the toner cartridge and then, install a new one (See Replacing the toner cartridge). 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 (See Replacing the toner cartridge). 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. Background scatter results from bits of toner randomly distributed on the printed page. The paper may be too damp. Try printing with a different batch of paper. Do not open packages of paper until necessary so that the paper does not absorb too much moisture. If background scatter occurs on an envelope, change the printing layout to avoid printing over areas that have overlapping seams on the reverse side. Printing on seams can cause problems.

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The transfer roller may be dirty. Clean the inside of your machine. Contact a
service representative.
The paper path may need cleaning. Contact a service representative.
Dropouts
If faded areas, generally rounded, occur randomly on the page:
A single sheet of paper may be defective. Try reprinting the job.
The moisture content of the paper is uneven or the paper has moist spots
on its surface. Try a different brand of paper (See
Print media specifications
).
The paper lot is bad. The manufacturing processes can cause some areas to
reject toner. Try a different kind or brand of paper.
Change the printer option and try again. Go to
Printing Preferences
, click
Paper
tab, and set type to
Thick
(See
Opening printing preferences
).
If these steps do not correct the problem, contact a service representative.
White Spots
If white spots appear on the page:
The paper is too rough and a lot of dirt from a paper falls to the inner
devices within the machine, so the transfer roller may be dirty. Clean the
inside of your machine (See
Cleaning the inside
).
The paper path may need cleaning (See
Cleaning the inside
).
Vertical lines
If black vertical streaks appear on the page:
The surface (drum part) of the toner cartridge inside the machine has
probably been scratched. Remove the toner cartridge and install a new one
(See
Replacing the toner cartridge
).
If white vertical streaks appear on the page:
The surface of the LSU part inside the machine may be dirty (See
Cleaning
the inside
).
Black background
If the amount of background shading becomes unacceptable:
Change to a lighter weight paper (See
Print media specifications
).
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 (See
Replacing the
toner cartridge
).
Toner smear
If toner smears on the page:
Clean the inside of the machine (See
Cleaning the inside
).
Check the paper type and quality (See
Print media specifications
).
Remove the toner cartridge and then, install a new one (See
Replacing the
toner cartridge
).
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 (See
Replacing the toner
cartridge
).
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.
Background scatter
Background scatter results from bits of toner randomly distributed on the
printed page.
The paper may be too damp. Try printing with a different batch of paper. Do
not open packages of paper until necessary so that the paper does not
absorb too much moisture.
If background scatter occurs on an envelope, change the printing layout to
avoid printing over areas that have overlapping seams on the reverse side.
Printing on seams can cause problems.