How to reset the memory on an HP Deskjet 3820 printer? -
I have done the usual step of covering up the 4 contacts either side and it still wont work - has anyone got any other ideas please?
Hi kev Remove all the ram. Unplug the printer for 30 seconds. Re-install the ram and power it up. It should display all kinds of commands and then, give you the default display.
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