My wife bought a HP LaserJet P1606dn two weeks ago. The printer was working well up until the toner light started blinking in the middle of a print job. Knowing the toner cartridge that comes with the printer would not last we replaced it with a new, HP sealed 78a toner cartridge. However upon replacing the cartidge the printer continues to show the toner light blinking and is not doing anything else.
Up to this point we have:
* rebooted the printer
* rebooted the connected computer
* checked for paper jams in all locations as per the manual
* reseated the new cartridge several times
* checked the media guides and adjusted the amount of paper said guides
* did a factory reset by unplugging the printer overnight, plugging it back in, turning on the printer, and then holding down the two buttons on the console until all of the indicator lights blinked at the same time three times.
Nothing I have found in the manual or online has helped. The toner light continues blinking and their is no mechanical response from the printer.
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Requested information:
HP LaserJet P1606dn
Windows 7 64-bit Home Edition, all Microsoft updates installed
Printer is directly connected to computer via 6' USB cable
Toner light blinking on printer console, and on-screen display reads "insert black toner cartridge".