Vertical repetitive – Samsung CLP 500N User Manual
Page 179
S
OLVING
P
ROBLEMS
7.23
7
Vertical lines
If black vertical streaks appear on the page:
• The imaging unit inside the printer has probably been
scratched. Install a new imaging unit.
If white vertical lines appear on the page:
• The Laser Scanner window has probably been contaminated,
clean the Laser Scanner window. Holding the end of the
cleaner, slide it in and out several times. See “Cleaning the
LSU Inside the Printer” on page 6.30.
Color or Black
background
If the amount of background shading becomes unacceptable,
the procedures below may fix the problem.
• Change to lighter weight pages. See “Paper Specifications” on
• Check the printer’s environment; very dry (low humidity) or
high humidity (higher than 80% RH) conditions can increase
the amount of background shading.
• Remove the old imaging unit and install a new one. See
“Replacing the Imaging Unit” on page 6.14.
Toner smear
• Clean the inside of the printer. See “Cleaning the Inside of the
• Check the paper type and quality. See “Paper Specifications”
• Remove the transfer belt and install a new one. See “Replacing
the Transfer Belt” on page 6.22.
Vertical repetitive
defects
If marks repeatedly appear on the printed side of the page at
even intervals:
• Clean the inside of the printer. See “Cleaning the Inside of the
Printer” on page 6.31. After cleaning the inside of the printer,
if you still have the same problems, install a new toner
cartridge of defected color. See “Replacing the Toner
Cartridges” on page 6.8.
• Parts of the printer 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.
Problem
Solution
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