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How do i know which print heads need replacing?

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Inkjets have either different heads for each color, or one printhead for black and one for color. Some model may have just one printhead (eg. printers using Lexmark one cartridge).

Replace the printhead which color is not printing or smearing.

If you are not sure replace all printheads. That would be a good idea, since one printhead is gone, remaining printheads having same service history may fail soon.

Regards.

G.

Posted on Sep 10, 2009

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The HP diagnostic error codes will tell you what needs replacing. Run a self test and print test to see the results. This should identify any harware problems.

Posted on Sep 10, 2009

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