HP color laserjet 2550 series Manuale Di Servizio

Faded areas, generally rounded, occur randomly on the page.

●

A single sheet of paper might be defective. Try reprinting the job.

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The paper path might need to be cleaned. Open the HP LaserJet Toolbox to use the
cleaning page. See 

 for details.

●

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 designed for laser printers. See the
HP Color LaserJet 2550 Series Printer User Guide for information about print-media
specifications.

●

The paper lot is flawed. The manufacturing processes can cause some areas to reject
toner. Try a different brand of paper, such as high-quality paper designed for laser
printers. See the HP Color LaserJet 2550 Series Printer User Guide for information
about print-media specifications.

●

The imaging drum might be defective. See .

●

If the problem is not resolved, see 

.

Vertical streaks or bands appear on the page.

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One or more print cartridges are low or defective. Print the Supplies Status page to
check remaining life. If you are using non-HP print cartridges, no messages appear on
the printer control panel or in the HP LaserJet Toolbox.

●

Clean the printer using a cleaning page. Open the HP LaserJet Toolbox to use the
cleaning page. See 

 for details.

●

Use the tools on the Troubleshooting tab of the HP LaserJet Toolbox to correct the
problem.

●

Inspect the imaging drum for toner dust, oil, or fingerprints.

●

Check the jam-access door.

●

If the problem is not resolved, see 

.

ENWW

Solving image-quality problems