Samsung ML-6040 User Manual page 105

Problem
Gray background
Toner smear
Repetitive vertical defects
If the amount of background toner shading becomes
unacceptable, the procedures below may help to clear the
condition:
• Change the paper to a lighter basis weight. See "Paper
Specifications" on page A.2.
• Check the printer's environment; very dry (low humidity)
or high humidity (higher than 80 % RH) conditions can
increase the amount of background shading.
• Install a new toner cartridge.
• Clean the inside of the printer. See "Cleaning the Inside"
on page 6.4.
• Check the paper type and quality. See "Paper
Specifications" on page A.2.
• Try installing a new toner cartridge.
If marks repeatedly appear on the printed side of the page
at even intervals:
• The toner cartridge may be damaged. If a repetitive mark
occurs every 95 mm or 38 mm on the page, print the
cleaning sheet several times to clean the cartridge (see
page 6.5). If you still have the same problems, install a
new toner cartridge.
• Parts in 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.
Solving Print Quality Problems
Solution
7.15
P S
ROBLEM OLVING