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

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HP C7250, C7288, C7280 manual Printouts have horizontal streaks or lines, Load full-size paper on

C7288, C7250, C7280 specifications

The HP C7280, C7250, and C7288 are part of HP's acclaimed All-in-One (AIO) printer series that blend functionality, speed, and quality in one compact device. Designed for home and small office use, these models stand out for their versatility and advanced features, making them an essential tool in any workspace.

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The print quality of these models is impressive, boasting a resolution that ensures sharp text and vibrant colors. The HP Vivera ink technology used in these printers plays a crucial role in delivering high-quality prints. This ink formulation provides a broader color gamut and enhanced longevity of prints, making them suitable for both professional documents and high-quality photos.

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In summary, the HP C7280, C7250, and C7288 series All-in-One printers excel in delivering multifunctionality, impressive print quality, and innovative technology. Their wireless capabilities, combined with user-friendly features and robust performance, make them a valuable addition to any home office or small business environment.