If you can solve this one, you're a hardware genius.
I tried to print a perfectly ordinary web page (from my credit card account) on my HP Officejet 6100 printer., and I got some sort of error message.
Then, I heard all sorts of ordinary operating noises from the printer: the carriage going back and forth, and the paper feed trying to feed a sheet. But no paper was feeding, and there certainly was no jam.
I tried to shut the printer off with the on/off button, but could not. So I instinctively disconnected the power cord and plugged it in again an hour later. No change.
I then disconnected the power cord AND the printer cable, then re-connected just the power cord. Same thing.
And here's other interesting data: I connected a different HP 6100 printer to my computer, tried to print the same thing--and got the same result!
I've tried pressing (and holding) each of the buttons when I power this printer up, but that has no effect.
IOW, there is something in some memory in this printer that has gone berserk. It is like the printer is trying to re-set itself, but with no success. Remember, this happens even when the printer is not connected to any computer.
HELP!!!!! What is going on here?