HP Color LaserJet 8550 Multifunction Printer series User Manual
Page 192
EN
Print Quality Problems 191
(Faded print, or random
faded areas, continued)
The letterhead you are using is printed on rough paper.
Try a smooth xerographic paper. If this solves the
problem, make sure the letterhead vendor is using
paper that meets the specifications for this printer. For
media specifications, see “
You are operating the printer in excessively humid or
dry conditions. Make sure the printer is operating within
the environmental specifications listed appendix
The media was creased or wrinkled when it was loaded
in the input tray. Try media from a different source or
from an unopened ream of media.
The print on the entire page is light or faded. Remove
the transfer assembly. Reinstall the transfer assembly.
Be sure to align the arrows and then reseat the
assembly.
If you recently removed the imaging drum from the
printer, it might have been damaged by light. Turn the
printer off and on to reset the printer's density
calibration. If the problem persists, replace the imaging
drum or contact a local authorized HP dealer or service
representative for service. For more information on
replacing the imaging drum, see the installation guide
included with the drum kit.
If the print or the background is too dark, turn the
printer off and on to allow the printer to adjust its color
settings. If the problem persists, clean the density
sensor as described in “
later in this chapter.
Problem
Cause and Solution