Question about HP Officejet Pro L7680 All-In-One Printer
Antiochpc may be correct but something worth trying first.
Open the printer lid and press OK for 5 seconds (as per screen instructions) to get the printer to put the printhead carriage unit in the replacement position.
Take the black and yellow printhead out of the carriage unit and check for any smear or soiling on the circuit board at the back of the printhead (don't touch the underside where the nozzles are!).
Using a cotton bud, carefully wipe off any ink or other moisture/grease, that may have built up.
Do the same to the back of the printhead slot circuit are but again, be careful and gentle.
Try slotting the printhead back into position, close the carriage unit blue lid and close the printer lid.
If it's worked you'll find the printer will run a self test routine and then return to normal operation.. If not, it's definitely replacement time.
Posted on Jan 24, 2009
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Posted on Jan 02, 2017
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