Samsung CLX-8540ND All in One Printer User Manual


 
14.17 <
Troubleshooting>
White Spots White spots appears 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.
(Page 13.2) Contact a service
representative.
The paper path may need cleaning. 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. (Page 13.6)
If white vertical streaks appear on the page:
The surface of the LSU part inside the
machine may be dirty. Clean the LSU.
Contact a service representative.
The inside of the Imaging Unit may be dirty.
Change the Imaging Unit.
If vertical streaks appear on the page:
The surface of the scanner glass and its
white sheet may be dirty. Clean these unit.
See 13.2 . If this problem persists, contact a
service representative.
Color or Black
background
If the amount of background shading becomes
unacceptable:
Change the IBT if it has reached its lifespan.
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 imaging unit and then,
install a new one. (Page 13.4)
Toner smear
Clean the inside of the machine. Contact a
service representative.
Check the paper type and quality.
(Page 4.3)
Remove the imaging unit and then, install a
new one. (Page 13.4)
Change the IBT if it has reached its lifespan.
Condition Suggested solutions
Vertical repetitive
defects
If marks repeatedly appear on the printed side
of the page at even intervals:
The imaging unit may be damaged. If a
repetitive mark occurs on the page, run a
cleaning sheet through several times to
clean the cartridge; contact a service
representative. After the printout, if you still
have the same problems, remove the
imaging unit and then, install a new one.
(Page 13.4)
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.
If background scatter covers the entire
surface area of a printed page, adjust the
print resolution through your software
application or in printer properties.
Misformed
characters
If characters are improperly formed and
producing hollow images, the paper stock
may be too slick. Try different paper.
(Page 4.3)
If characters are improperly formed and
producing a wavy effect, the scanner unit
may need service. Contact a service
representative.
Condition Suggested solutions