Chapter 15

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 162

•“Print a self-test report” on page 149

•“Align the printer” on page 161

Printouts have horizontal streaks or lines

Cause: The paper is not feeding properly or is loaded incorrectly.

Solution: Make sure the paper is loaded correctly.

For more information, see:

“Load full-size paper” on page 76

Troubleshooting

Cause: The copy or print paper type setting is incorrect.

Solution: Load high-quality paper in the input tray and print the image with a high print quality setting, such as Best, Maximum dpi, or High Resolution. Always make sure the paper you are printing on is flat. For best results when printing images, use HP Premium Plus Photo Paper.

If the problem persists, use the software you installed with the HP All-in-One or another software application to rotate your image 180 degrees so that the light blue, gray, or brown hues in your image do not print at the bottom of the page.

For more information, see:

“Information on paper” on page 171

Cause: The sending fax machine is having problems.

Solution: Ask the sender to check their fax machine for any problems.

Cause: The phone line connection is noisy. Phone lines with poor sound quality (noise) can cause print quality problems.

Solution: If the failure was due to noise on the phone line, contact the sender to have them resend the fax. The quality might be better when you try again. You can check the sound quality of the phone line by plugging a phone into the telephone wall jack and listening for static or other noise. If the problem persists, contact your telephone company.

194 Troubleshooting