Printers Help and Repair

Monday, October 21, 2019

HP Deskjet 812C self test page

| Monday, October 21, 2019
You can print a self-test page from the Deskjet 812C (and many other Deskjet models) that will show the printers serial number, firmware version, and page count.  To print the self-test page, hold down the Power button and press the Resume button (the one with the arrow on it) four times, then release the Power button.

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