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this is a firmware error
to fix this issue , try this
1. Turn printer on and watch when the display shows memory count, press and hold the down arrow until all three lights on the control panel are lit.2 Press the up arrow3 Press the home button, the message Skip disk load will display.4 press the up arrow till NVRAM INIT is highlited.5 Press the OK button
if the above doesn't fix the issue / you're not able to do the above steps
then you've to do a firmware update to completely fix this issue
see this link to know how to perform a firmware update
try this and let me know
Hi there, Neelimark,
Thank you for your follow up and for your original assistance. The procedure you suggested unfortunately didn't work as there was a main fault with the mother board. HP have now replaced the faulty board and the printer is now functioning proper;ly.
Although I hadn't clicked on the "green" button - frankly because I was suspicious about what additonal "freebie" offer this was going to commit me to on the "Justanswer" website (!!!!), I have spoken with HQ and informed them that your answer was both rapid and helpful. They have said that they will release payment to you following my telephone call with them.