No recent hardware or software changes except replacement of the print head AFTER the fault. No ink, started with no magenta now no printing at all. Head moves, prints the first couple of pages faintly if it has been standing for a while. I have cleaned old print head then replaced with a new one. Have checked alignment of head. Printer is an HP Photosmart 7520.
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I have an HP Photosmart 7520 printer which has a fault code OX6100004C. What is this and can I fix i
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