Dell 1600n Multifunction Mono Laser Printer - Manual (Page 155)

page.
The paper may be too damp. Try printing with a different batch of
paper. Do not open packages of paper until necessary so that the
paper does not absorb too much moisture.
If background scatter occurs on an envelope, change the printing
layout to avoid printing over areas that have overlapping seams
on the reverse side. Printing on seams can cause problems.
If background scatter covers the entire surface area of a printed
page, adjust the print resolution through your software application
or the printer properties.
Misformed characters If characters are improperly formed and produce hollow images,
the paper stock may be too slick. Try a different paper. See
"Paper Specifications" on page 200 .
If characters are improperly formed and produce a wavy effect,
the scanner unit may need service. For service, contact a service
representative.
Page skew Ensure that the paper is loaded properly.
Check the paper type and quality. See
"Paper Specifications" on
page 200 .
Ensure that the paper or other material is loaded correctly and the
guides are not too tight or too loose against the paper stack.
Curl or wave Ensure that the paper is loaded properly.
Check the paper type and quality. Both high temperatures and
humidity can cause paper curl. See
"Paper Specifications" on
page 200 .
Turn over the stack of paper in the paper tray. Also try rotating
the paper 180° in the paper tray.
Wrinkles or creases Ensure that the paper is loaded properly.
Check the paper type and quality. See
"Paper Specifications" on
page 200 .
Turn over the stack of paper in the paper tray. Also try rotating
the paper 180° in the paper tray.
Back of printouts are Check for leaks in the toner. Clean the inside of the multi-function