Question about HP Officejet Pro L7780 All-In-One InkJet Printer

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When making copies, only a part of the document prints; the rest is solid black.

Printing from computer feed is not affected at all.

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Solid black in a copy typically means that the scanner is partially blocked. Open the top, where you'd place a sheet to be copied, and examine the small strip that runs down the side (left, most likely). See if it's clear, or if something is covering part of it.
Most copiers don't use the full size scanning plate for copies, but use a strip that scans the paper as it moves across it. If something blocks part of it, you get the black area.

Posted on Apr 12, 2015

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Posted on Jan 02, 2017

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