Samsung MultiXpress X422x Series Administrator's Manual page 225

Solving other problems
Condition
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. Cleaning
the inside or contact a service representative.
• The paper path may need cleaning. Cleaning the inside or
contact a service representative.
Vertical lines If black vertical streaks appear on the page:
• The drum inside the printer has probably been scratched.
Remove the imaging unit and install a new one. Contact a
service representative.
If white vertical streaks appear on the page:
• The surface of the LSU part inside the machine may be
dirty. Cleaning the inside or contact a service
representative.
If vertical streaks appear on the page:
• The surface of the scanner glass and its white sheet may be
dirty. Cleaning the inside or contact a service
representative.
Color or Black If the amount of background shading becomes unacceptable:
background
• Change the image transfer belt if it has reached its lifespan.
Contact a service representative.
• Check the environmental conditions: very dry conditions
(low humidity) 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.
Suggested Solutions Condition
Toner smear If toner smears on the page:
• Clean the inside of the machine. Cleaning the inside or
contact a service representative.
• Check the paper type and quality (see "Print media
specifications" on page 254).
• Remove the imaging unit and install a new one. Contact a
service representative.
• Change the image transfer belt if it has reached its lifespan.
Contact a service representative.
Vertical If marks repeatedly appear on the printed side of the page at
repetitive even intervals:
defects
• The imaging unit may be damaged. If a repetitive mark
occurs on the page, run a cleaning sheet through several
times to clean the imaging unit. Cleaning the inside. If you
still have the same problems, remove the imaging unit and
install a new one. Contact a service representative.
• 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.
Suggested Solutions
9. Troubleshooting
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