HP LaserJet Pro 4001dw Monochrome Wireless Printer - Manual (Page 113)

Table 6-9 Gray background or dark print
Sample Description Possible solutions
The image or text is darker than
expected and/or the background is gray.
1. Make sure that the paper in the
trays has not already been run
through the printer.
2. Use a different paper type.
3. Reprint the document.
4. Mono models only: From the Home
screen on the printer control panel,
go to the
Adjust Toner Density
menu, and then adjust the toner
density to a lower level.
5. Make sure that the printer is
within the supported operating
temperature and humidity range.
6. Replace the cartridge.
7. If the issue persists, go to
support.hp.com .
Table 6-10 Image placement defects
Sample Description Possible solutions
The image is not centered, or is skewed
on the page. The defect occurs when the
paper is not positioned properly as it is
pulled from the tray and moves through
the paper path.
1. Reprint the document.
2. Remove the paper and then reload
the tray. Make sure that all the
paper edges are even on all sides.
3. Make sure that the top of the paper
stack is below the tray-full indicator.
Do not overfill the tray.
4. Make sure that the paper guides
are adjusted to the correct size
for the paper. Do not adjust the
paper guides tightly against the
paper stack. Adjust them to the
indentations or markings in the tray.
5. If the issue persists, go to
support.hp.com .
104 Chapter 6 Solve problems