Samsung ML-3712DW User Manual (user Manual) (ver.1.02) (English) - Page 217

Condition, Suggested Solutions

Page 217 highlights

Printing quality problems 6. Troubleshooting 113 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. 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. 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. • Clean the inside of the machine. • Check the paper type and quality. • Remove the toner cartridge and install a new one.

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Printing quality problems
113
6. 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.
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. 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.
Toner smear
Clean the inside of the machine.
Check the paper type and quality.
Remove the toner cartridge and install a new one.
Condition
Suggested Solutions