Muratec MFX-3550 User Manual page 191

Troubleshooting
Toner specks
Dropouts
White Spots
Vertical lines
Color or Black background
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If faded areas, generally rounded, occur randomly on the page:
If white spots appear on the page:
If black vertical streaks appear on the page:
If white vertical streaks appear on the page:
If the amount of background shading becomes unacceptable:
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the paper may be too moist or rough. (See
specifications .)
If the entire page is light, the print resolution setting is too
low or the toner save mode is on. Adjust the print resolution
and turn the toner save mode off. See the help screen of the
printer driver.
A combination of faded or smeared defects may indicate that
the toner cartridge needs cleaning. (See
The surface of the LSU part inside the machine may be dirty.
(See Cleaning the inside.)
The paper may not meet specifications; for example, the
paper may be too moist or rough. (See
specifications .)
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.
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.
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
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
cartridge.)
The surface of the LSU part inside the machine may be dirty.
(See Cleaning the inside.)
Change to a lighter weight paper. (See
specifications .)
Check the environmental conditions: very dry conditions or a
high level of humidity (higher than 80% RH) can increase the
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Print media
Cleaning the inside.)
Print media
.)
Cleaning the inside.)
Replacing the toner
Print media
8/4/2009