I have an HP Officejet printer 6900 series all in one. Just changed all the ink cartridges (# 902) and now it is telling I shut off the printer the wrong way (which I didn't) and to clear paper jams and there are none and gives the error message:
There is a problem with the printer or print system. Turn printer off, then on. If you continue to get this message contact HP.
I have turned off and on, unplugged cord from both ends several times with no help. The carriage is not moving since I changed cartridges and I cannot move manually but there is nothing stuck that I can see.
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