How to Self-Test HP Deskjet 940C

Written by shawn farner
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How to Self-Test HP Deskjet 940C
(Thinkstock Images/Comstock/Getty Images)

When using your HP Deskjet 940c printer, you may need to perform a self-test from time to time. This diagnostic step simply prints out a test page to ensure that the printer is working properly. A self-test may be necessary when you set up a new printer out of the box and when you replace an empty ink cartridge. You can perform a self-test on your HP Deskjet 940c printer in just a few steps.

Skill level:
Moderately Easy


  1. 1

    Turn off the printer by pressing the "Power" button.

  2. 2

    Locate the cable that connects the printer to your PC and unplug it from the back of the printer.

  3. 3

    Turn on the printer.

  4. 4

    Press and hold the "Power" button while pressing the "Resume" button four times.

  5. 5

    Release the "Power" button. Your self-test page will print out.

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