Example of a good alignment pattern. The lines are straight.

Examples of a bad alignment pattern. The lines are jagged - align the printer. If that does not work, contact HP.

If the Print Quality Diagnostic report indicates that the printer is working correctly, try the following:

Check the paper

Check the print settings

Make sure your image file has sufficient resolution

If the problem seems confined to a band near the edge of a print, use the software you installed with the device or another software application to rotate the image 180 degrees. The problem may not appear on the other end of the print.

If the Print Quality Diagnostic report indicates that the printer is not working correctly, try the following:

Use genuine HP ink cartridges - HP cannot guarantee the quality of non-HP ink.

Clean the printhead.

Align the device.

If none of these solutions work, contact HP.

Clean the device

This section provides instructions for keeping the device in top working condition. Perform these maintenance procedures as necessary.

Dust or dirt on the scanner glass, scanner lid backing, or scanner frame can slow down performance, degrade the quality of scans, and affect the accuracy of special features.

This section contains the following topics:

Clean the scanner glass

Clean the exterior

Clean the automatic document feeder

Clean the scanner glass

To clean the scanner glass

1.Turn off the device.

2.Lift the scanner lid.

Clean the device

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HP 6500, E709 manual Clean the device, Clean the scanner glass, To clean the scanner glass