Offcejet Pro X576dw "Printer Failure" message

[ppjm]

My eleven years, 60,000 pages old HP OfficeJet Plus MFC X576dw is now displaying a very terminal looking error message:

Printer failure

There is a problem with the printer or ink system. Turn printer off, then on. If problem persists, call HP.

Naturally I have switched it on and off several times, but the problem persists.

Immediately before this message, it was displaying a strange error message about a jam in the ink compartment. However, it is impossible for there to be a jam in the ink compartment, as the paper goes nowhere near it. I checked for jams in the all the usual ways, removed all the ink cartidges from the ink compartment and restored them.

That error message then disappeared to be replaced by the one above referring to a system failure.

Advice gratefully received, or recommendation of a friendly and inexpensive engineer in West London or environs.

[Repairatrooper]

Jam in the ink compartment is likely referring to the waste ink container (also called duplex module) This module installs on the left hand side of the printer. Open the left door, remove the module and look closely for any bits of paper or other debris or obstructions. If the error clears but you have further feeding problems, based on your page count I would examine the pickup rollers.