User guide

190 Chapter 6 - Troubleshooting EN
The printed
page has a
gray
background.
The priority input tray is not in place. Adjust the priority input tray.
The print density setting is too high. Decrease the amount of background
shading through the device configuration
utility.
The media basis weight is too high. Change the media to a lower basis
weight.
The humidity level is too low. Very low humidity can increase the
amount of background shading. Move
the product to a different location, or
decrease the background shading
through the device configuration utility.
The print cartridge needs to be replaced. Replace the print cartridge.
Toner smears
appear on the
printed page.
If the toner smears appear on the leading
edge of the media, the media guides are
dirty.
Wipe the media guides with a dry, lint-
free cloth.
The media you are using does not meet
HP’s specifications (for example, it is too
moist or too rough).
Make sure that the media meets
specifications detailed in the
Print Media
Guide
for the HP LaserJet family.
The print cartridge needs to be replaced. Replace the print cartridge.
The fuser temperature is too low. Select
Optimize for: in the Paper tab of
the driver. Make sure that it is set for the
appropriate media.
Perform the heating element check (see
page 203).
If the error persists, replace the heating
element.
If, after replacing the heating element,
the error persists, replace the ECU.
Table 18. Solving print image-quality problems (continued)
Problem Cause Solution