HP Officejet 6600 e-All-in-One Printer - H711a H711g - Manual (Page 92)

If defects are seen on the Print Quality Diagnostic report, follow the steps below:
1.
If the lines in Test Pattern 1 are not straight and connected, align the printer.
For more information, see Align the printhead.
2. If you see white lines in any of the color blocks in Test Pattern 2, clean the
printhead. For more information, see Clean the printhead.
3. If you see white or dark lines where the arrows are pointing in Test Pattern
3, align the printer. For more information, see Align the printhead.
Cause: Print quality problems can have many causes: software settings, a poor
image file, or the printing system itself. If you are unhappy with the quality of your
prints, a Print Quality Diagnostic page can help you determine if the printing
system is working correctly.
Solution 7: Contact HP support
Solution: Contact HP support for service.
If prompted, choose your country/region, and then click Contact HP for
information on calling for technical support.
Chapter 8
88 Solve a problem