Oh my God, I want to shoot this printer photosmart c4780. not recognizing cartridges!

OK, I'm not a fool.  I replaced the toner cartridges and a million times.

I can't get the printer to recognize I put the cartridges.

I tried at least 25 times.  I make sure that cartridges click every time and have removed every last piece of Ribbon to each of them!

Help, please!

You use genuine HP cartridges?

If Yes... to do this:

Hard reset - while the printer is turned on, pull

the power cord of the printer and then to the

wall. After 30 seconds turn the wall supply

and the printer. This will trigger a "dirty power upward.

and restore the printer has been good

condition (if possible). No user settings are

lost with a "hard reset."
This "Hard Reset" is one of the most powerful

tools to use when the hardware of the printer is not

works correctly!

Tags: HP Printers

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