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Correct print quality and copy quality problems
The following procedures help you define print quality problems and what to do to correct them. Often
print quality problems can be handled easily by making sure that the product is properly maintained,
using print media that meets HP specifications, or running a cleaning page.
Example print quality problems
Some print quality problems arise from use of inappropriate paper.
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Use paper that meets HP paper specifications.
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The surface of the paper is too rough. Use paper that meets HP paper specifications.
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The printer driver setting or paper tray setting might be incorrect. Be sure that you have configured
the paper tray at the product control panel and have also selected the correct driver setting for the
paper that you are using.
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The print mode might be set incorrectly, or the paper might not meet recommended specifications.
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The transparencies you are using are not designed for proper toner adhesion. Use only
transparencies designed for HP Color LaserJet products.
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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.
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Some areas of the paper reject toner. Use paper from a different source or from an unopened ream
of paper.
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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 product.
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Several optimize print modes can be used to address print quality issues. See
Print Quality menu
on page 48.
Repetitive defects ruler
If defects repeat at regular intervals on the page, use this ruler to identify the cause of the defect. Place
the top of the ruler at the first defect. The marking that is beside the next occurrence of the defect
indicates which component needs to be replaced.
258 Chapter 15 Solve problems ENWW