Dell 1600n Multifunction Mono Laser Printer User Manual page 154

Vertical lines
Gray background
Toner smear
Vertical repetitive
defects
Background scatter
A single sheet of paper may be defective. Try reprinting the job.
The moisture content of the paper is uneven or the paper has
moist spots on its surface. Try a different brand of paper. See
"Paper Specifications" on page
The paper lot is bad. The manufacturing process can cause some
areas to reject toner. Try a different kind or brand of paper.
The toner cartridge may be defective.
on the next page.
If these steps do not correct the problems, contact a service
representative.
If black vertical streaks appear on the page, the drum inside the toner
cartridge has probably been scratched. Install a new toner cartridge.
See "Installing the Toner Cartridge" on page
If the amount of background shading becomes unacceptable:
Change to lighter weight pages. See
page 200.
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 toner cartridge and install a new one. See
"Installing the Toner Cartridge" on page
Clean the inside of the multi-function printer. See
Check the paper type and quality. See
page 200.
Remove the toner cartridge and install a new one. See
the Toner Cartridge" on page
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
on the page, print a cleaning sheet several times to clean the
cartridge; see "Cleaning the Drum" on page
printout, if you still have the same problems, install a new toner
cartridge. See "Installing the Toner Cartridge" on page
Parts of the multi-function 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.
Background scatter results from bits of toner distributed on the printed
200.
Vertical repetitive defects
23.
"Paper Specifications" on
23.
page
"Paper Specifications" on
23.
159. After the
153.
"Installing
23.