HP Photosmart C6280 All-in-One Printer - Manual (Page 130)

Cause: The Paper Type setting is incorrect.
Solution: Change the Paper Type setting to match the type of paper loaded in the
input tray.
For more information, see:
• “Set the copy paper type” on page 87
• “Set the paper type for printing” on page 47
Cause: Copying a poor-quality picture, such as a newspaper photo, causes bands,
checks, or stripes to appear on your copy. These are called moiré patterns.
Solution: To reduce moiré patterns, try placing one or more clear plastic sheet
protectors directly on the glass, and then place the original print side down on top of
the sheet protectors.
Cause: Debris might be stuck on the glass or on the back of the document lid; this
causes poor copy quality and slows down processing.
Solution: Clean the glass and the back of the document lid.
For more information, see:
• “Clean the glass” on page 97
• “Clean the lid backing” on page 98
Cause: The print head needs to be cleaned.
Solution: Clean the print head, and then print a self-test report. Check the color
blocks in the report for any problems. If the color blocks show print quality problems,
perform a printer alignment.
If the problem persists after cleaning and aligning, contact HP support for help. Go
to:
www.hp.com/support
If prompted, choose your country/region, and then click Contact HP for information
on calling for technical support.
For more information, see:
• “Clean the print head” on page 103
• “Print a self-test report” on page 95
• “Align the printer” on page 102
Printouts seem blurry or fuzzy
Cause: The paper type is not suitable for the HP All-in-One.
Solution: Use HP Premium Papers or any other paper type that is appropriate for
the HP All-in-One.
Cause: The Paper Type setting is incorrect.
Print quality troubleshooting 129
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