HP laserjet 3390, 3392 all-in-one Servicehandbuch

specifications in the HP LaserJet Printer
Family Print Media Guide.

The paper path might need to be
cleaned.

Clean the paper path. See 

, or see the

HP ToolboxFX online Help.

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.

Try different paper, such as high-quality
paper that is intended for laser printers.

The print cartridge might be defective.

Replace the print cartridge. See 

Vertical streaks or bands appear on the
page.

The print cartridge might be low or
defective. If you are using a non-HP print
cartridge, no messages appear on the
all-in-one control panel or in the
HP ToolboxFX.

Replace the print cartridge. See 

The amount of background toner
shading becomes unacceptable.

The media might not meet
HP specifications.

Use a different paper with a lighter basis
weight.

The single-sheet priority input slot
(tray 1) might be installed incorrectly.

Make sure that the single-sheet priority
input slot (tray 1) is in place.

The print-density setting is too high.

Decrease the print-density setting
through HP ToolboxFX or the embedded
Web server. This decreases the amount
of background shading.

Very dry (low humidity) conditions can
increase the amount of background
shading.

Check the all-in-one environment.

The print cartridge might be low. If you
are using a non-HP print cartridge, no
messages appear on the all-in-one
control panel or in the HP ToolboxFX.

Replace the print cartridge. See 

Toner smears appear on the media.

The media might not meet
HP specifications.

Use media that meets HP specifications.
Make sure that the media meets

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Chapter 6   Troubleshooting

ENWW