HP Officejet Pro L7550 - Something on the page is missing or incorrect

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Something on the page is missing or incorrect

Check the printheads
Print the print quality diagnostic page on a clean sheet of white paper. Evaluate any
problem areas, and perform the recommended actions. For more information, see

To

print the print quality diagnostic page

.

Check the margin settings
Make sure the margin settings for the document do not exceed the printable area of
the device. For more information, see

Set minimum margins

.

Check the color print settings
Make sure Print in Grayscale is not selected in the print driver.

Check the device location and length of USB cable
High electromagnetic fields (such as those generated by USB cables) can sometimes
cause slight distortions to printouts. Move the device away from the source of the
electromagnetic fields. Also, it is recommended that you use a USB cable that is less
than 3 meters (9.8 feet) long to minimize the effects of these electromagnetic fields.