L7780 startup is not over, tried to reinstall the software, the software does ' t find printer

.. now printer won't turn off and is unresponsive to front panel.  Quite frustrating.  I bought a HP laptop to simplfy my calculation.  No luck on either.

Try this... Unplug the power cable while the printer is... Well well... but does not, ON. Then press and hold the # and 6 buttons and then reconnect the cable. Hold the buttons until you see "Semi_NVM Reset" on the screen. The printer works now?

Tags: HP Printers

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