Solving Print Quality Problems - Samsung ML-3050 Manual

Condition Possible cause
The printer cable
is loose or
defective.
The wrong printer
driver was
The printer
selected.
prints, but
the text is
The software
wrong,
application is
garbled, or
malfunctioning.
incomplete.
The operating
system is
malfunctioning.
The toner
cartidge is
defective or out of
toner.
Pages print,
The file may have
but are
blank pages.
blank.
Some parts, such
as the controller
or the board, may
be defective.
The
illustrations The setting in the
print software
incorrectly in application is
Adobe wrong.
Illustrator.
Suggested solutions
Disconnect and reconnect the
printer cable. Try a print job that
you have already printed
successfully. If possible, attach
the cable and printer to another
computer and try a print job
that you know works. Finally,
try a new printer cable.
Check the application's printer
selection menu to ensure that
your printer is selected.
Try printing a job from another
application.
If printing from Windows (any
version), exit to a DOS prompt
and verify functionality with the
following command: At a C:\
prompt, type Dir LPT1, and
press OK. (This assumes you
are connected to LPT1.)
Exit Windows and reboot the
computer. Turn the printer off
and then back on again.
Redistribute the toner cartidge.
See page 8.3.
If necessary, replace the toner
cartidge. See page 8.4.
Check the file to ensure that it
does not contain blank pages.
Contact a service
representative.
Select Download as Bit Image
in the Advanced Options
window of the graphic
properties. Print the document
again.

Solving print quality problems

Dirt inside of the printer or improper paper loading may reduce print
quality. See the table below to troubleshoot problems.
Condition
If a vertical white streak or faded area appears
on the page:
• The toner supply is low. You may be able to
Light or faded
print
• The paper may not meet paper specifications
Aa AaBb BbCc Cc
AaBb Aa BbCc Cc
• If the entire page is light, the print resolution
AaBb Aa BbCc Cc
Aa AaBb BbCc Cc
AaBb Aa BbCc Cc
• A combination of faded or smeared defects
• The surface of LSU may be dirty. Clean the
Toner spots
• The paper may not meet specifications (for
AaBbCc
AaBbCc
• The transfer roller or paper path may be dirty.
AaBbCc
AaBbCc
AaBbCc
If generally rounded, faded areas occur
randomly on the page:
• A single sheet of paper may be defective. Try
Dropouts
• The moisture content of the paper is uneven
AaBbCc
AaBbCc
AaBbCc
• The paper lot is bad. The manufacturing
AaBbCc
AaBbCc
• The toner cartidge may be defective. See
• If these steps do not correct the problems,
9.11
<Troubleshooting>
Suggested solutions
temporarily extend the toner cartidge life. See
page 8.3. If this does not improve print quality,
install a new toner cartidge.
(for example, the paper is too moist or too
rough). See page 5.3.
setting is too light or toner save mode is on.
Adjust the print resolution and toner save
mode in the printer properties. See the
Software Section.
may indicate that the printer needs cleaning.
See page 8.1.
LSU. See page 8.1.
example, the paper is too moist or too rough).
See page 5.3.
See page 8.1.
reprinting the job.
or the paper has moist spots on its surface.
Try a different brand of paper. See page 5.3.
processes can cause some areas to reject
toner. Try a different kind or brand of paper.
"Vertical repetitive defects" on the next page.
contact a service representative.