HP Photosmart C6340 All-in-One Printer - Manual (Page 172)

If this did not solve the issue, try the next solution.
Solution 2: Check the paper type
Solution: HP recommends that you use HP papers or any other paper type that is
appropriate for the product.
Always make sure the paper you are printing on is flat. For best results when printing
images, use HP Advanced Photo Paper.
Store photo media in its original packaging inside a resealable plastic bag on a flat
surface in a cool, dry place. When you are ready to print, remove only the paper you
plan to use immediately. When you have finished printing, return any unused photo
paper to the plastic bag. This will prevent the photo paper from curling.
NOTE: For this issue, there is not a problem with your ink supplies. Therefore,
replacing the ink cartridges or printhead is not necessary.
For more information, see:
• “Recommended papers for printing and copying” on page 60
• “Information on paper” on page 159
Cause: The wrong kind of paper was loaded in the input tray.
If this did not solve the issue, try the next solution.
Solution 3: Clean the printhead
Solution: If the previous solutions did not resolve the issue, try cleaning the
printhead.
After cleaning the printhead, print a print quality report. Evaluate the print quality
report to see if the print quality problem still exists.
For more information, see:
• “Clean the printhead” on page 127
• “Print and evaluate a print quality report” on page 129
Cause: The printhead needed to be cleaned.
If this did not solve the issue, try the next solution.
Solution 4: Check the ink levels
Solution: Check the estimated ink levels in the ink cartridges.
NOTE: Ink level warnings and indicators provide estimates for planning
purposes only. When you receive a low-ink warning message, consider having a
replacement cartridge available to avoid possible printing delays. You do not need
to replace the ink cartridges until print quality becomes unacceptable.
Print quality troubleshooting 169
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