HP LaserJet M1120 Multifunction Printer - Manual (Page 100)

Solve image-quality problems
Print problems
Print quality problems
Occasionally, you might encounter problems with print quality. The information in the following sections
helps you identify and resolve these issues.
General print-quality issues
The following examples depict letter-size paper that has passed through the product short-edge-first.
These examples illustrate problems that would affect all of the pages that you print. The topics that follow
list the typical cause and solution for each of these examples.
Problem Cause Solution
Print is light or faded. The media might not meet HP specifications. Use media that meets HP specifications.
The print cartridge might be defective. If you
use a non-HP print cartridge, no messages
appear on the product control panel. Replace the print cartridge. See Print
cartridge on page 73 .
If the print cartridge is not low or empty,
inspect the toner roller to see if the roller is
damaged. If it is, replace the print cartridge.
If the whole page is light, the print density
adjustment is too light or EconoMode might
be turned on. Adjust the print density, and disable
EconoMode in the product Properties.
Toner specks appear. The media might not meet HP specifications. Use media that meets HP specifications.
The paper path might need cleaning. Clean the paper path. See Clean the paper
path on page 75 .
Dropouts appear. A single sheet of print media might be
defective. Try reprinting the job.
The moisture content of the paper is uneven
or the paper has moist spots on its surface. Try different paper, such as high-quality
paper that is intended for laser printers.
The paper lot is flawed. The manufacturing
processes can cause some areas to reject
toner.
The print cartridge might be defective. Replace the print cartridge. See Print
cartridge on page 73 .
If the error persists, contact HP. See
www.hp.com/support/LJM1120 or the
support flyer that came in the product box.
Vertical streaks or bands appear
on the page. The print cartridge might be defective. If you
are using a non-HP print cartridge, no
messages appear on the product control
panel. Replace the print cartridge. See Print
cartridge on page 73 .
90 Chapter 11 Problem solve ENWW