The tests do not verify that the computer and printer connections are working properly. The internal tests can be used to verify that the printer's internal firmware is functioning properly. This document explains how to perform built-in internal tests on specific HP Deskjet printers. ![]() ![]() For any test page or network page press (ctrl +F )key from the key board and type the model no or first two digit of the model no series. these all the information has been taken from hp.com, you can find these information very easily at hp.com.
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