Printers Help and Repair

Showing posts with label 812c. Show all posts
Showing posts with label 812c. Show all posts

Monday, October 21, 2019

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HP Deskjet 812C self test page

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.