Dell B1160 User Manual page 142

Printing quality problems
Condition
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
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
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
• Remove the old toner cartridge and install a new one (see "Replacing the toner cartridge" on page 40).
• Thoroughly redistribute the toner (see "Redistributing toner" on page 39).
Toner smear • Clean the inside of the machine (see "Replacing the toner cartridge" on page 40).
• Check the paper type and quality.
• Remove the toner cartridge and install a new one (see "Replacing the toner cartridge" on page 40).
install a new one (see "Replacing the toner cartridge" on page 40).
42). If these steps do not correct the problem, contact a service representative.
of background shading.
Suggested Solutions
142
5. Troubleshooting