How to Self Test HP Printer

If you often get the printer and your service is often difficult to test print of having to install any drivers on your computer, you may need to try this trick.

Here is how to print directly from the printer without the test via computer.

How to test print directly from a printer HP 3325, 3535, 3744, 3920, 3940, 2466, 2566, etc. (which is important HP Deskjet printers are not Multi Function):
1. Turn on the printer.
2. Press the power button and hold it not in the release. (if released to die ...)
3. Then open the lid cover of the printer (printer cover) 3x-4x (three-four times the open lid), should not be less with the final closing conditions, and then power on button is released.
and your HP printer will begin to run a print test.

Prepare the paper first so do not forget .....

Good luck