Question about HP Office Equipment & Supplies
78 does not show in the manuals as a valid error. The link you attach is for error 79. 79 is a critical error usually related to memory failures. Disconnect the printer from the computer and power off and on. If it comes to ready it might be corrupt print job. If it still has a 79 error then you may have a bad memory chip but if you have no added memory it will be the memory built in to the formatter that is bad and that would mean replacing the formatter.
Posted on Dec 10, 2014
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Posted on Jan 02, 2017
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