Samsung Xpress SL-M2021 User Manual Ver.1.0 (English) - Page 171

Vertical lines, Black background, Toner smear, Condition, Suggested Solutions, of background shading.

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Printing quality problems Condition Vertical lines Black background Toner smear Suggested Solutions If black vertical streaks appear on the page: • The surface (drum part) of the toner cartridge inside the machine has probably been scratched. Remove the toner cartridge and install a new one (see "Replacing the toner cartridge" on page 44). If white vertical streaks appear on the page: • The surface of the LSU part inside the machine may be dirty. Clean the inside of your machine (see "Cleaning the machine" on page 46). If these steps do not correct the problem, contact a service representative. If the amount of background shading becomes unacceptable: • Change to a lighter weight paper. • Check the environmental conditions: very dry conditions 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 (see "Replacing the toner cartridge" on page 44). • Thoroughly redistribute the toner (see "Redistributing toner" on page 43). • Clean the inside of the machine (see "Replacing the toner cartridge" on page 44). • Check the paper type and quality. • Remove the toner cartridge and install a new one (see "Replacing the toner cartridge" on page 44). 5. Troubleshooting 171

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Printing quality problems
171
5.
Troubleshooting
Vertical lines
If black vertical streaks appear on the page:
•
The surface (drum part) of the toner cartridge inside the machine has probably been scratched. Remove the toner cartridge and
install a new one (see "Replacing the toner cartridge" on page 44).
If white vertical streaks appear on the page:
•
The surface of the LSU part inside the machine may be dirty. Clean the inside of your machine (see "Cleaning the machine" on page
46). If these steps do not correct the problem, contact a service representative.
Black background
If the amount of background shading becomes unacceptable:
•
Change to a lighter weight paper.
•
Check the environmental conditions: very dry conditions 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 (see "Replacing the toner cartridge" on page 44).
•
Thoroughly redistribute the toner (see "Redistributing toner" on page 43).
Toner smear
•
Clean the inside of the machine (see "Replacing the toner cartridge" on page 44).
•
Check the paper type and quality.
•
Remove the toner cartridge and install a new one (see "Replacing the toner cartridge" on page 44).
Condition
Suggested Solutions