Image formation troubleshooting
The image formation system is the central hub of the printer. During image formation, an
image of colored toner is formed and then fused onto the paper. The image formation
system consists of the following physical components:
● Four laser scanners
● Four print cartridges
● ETB
● Fuser
Before beginning image formation troubleshooting, check that the media meets the
specifications listed in the HP LaserJet Printer Family Print Media Specifications Guide.
Print quality problems associated with media
Some print quality problems arise from use of inappropriate media.
● Use paper that meets HP paper specifications. See
Table 1-16. Tray 1 (multi-purpose
tray) supported media specifications.
● The surface of the media is too smooth. Use media that meets HP paper specifications.
See
Table 1-16. Tray 1 (multi-purpose tray) supported media specifications.
● The driver/printer is set incorrectly. Change the paper type setting to heavy or glossy.
● The media you are using is too heavy for the printer, and the toner is not fusing to the
media.
● The transparencies you are using are not designed for proper toner adhesion. Use only
transparencies designed for HP Color LaserJet printers.
● The moisture content of the paper is uneven, too high, or too low. Use paper from a
different source or from an unopened ream of paper.
● Some areas of the paper reject toner. Use paper from a different source or from an
unopened ream of paper.
● The letterhead you are using is printed on rough paper. Use a smoother, xerographic
paper. If this solves your problem, consult with the printer of your letterhead to verify that
the paper used meets the specifications for this printer.
● The paper is excessively rough. Use a smoother, xerographic paper.
Overhead transparency defects
Overhead transparencies may display any of the image quality problems that any other type
of media will cause, as well as defects specific to printing on transparencies. In addition,
because transparencies are pliable while in the print path, they are subject to being marked
by the media-handling components.
Note
Allow transparencies to cool at least 30 seconds before handling them.
● In the printer driver’s Paper tab, select Transparency as the media type. Also, make
sure that the tray is correctly configured for transparencies.
● Check that the transparencies meet the specifications for this printer. For more
information, consult the HP LaserJet Printer Family Print Media Specifications Guide.
ENWW Image formation troubleshooting 343
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