How to Reset the Deskjet 840C

Written by art corvelay
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According to the official HP support website for the HP Deskjet 840C, resetting the printer is also known as performing a power reset. A power reset drains all of the power from the Deskjet 840C, and then resets the printer after it is restarted. Furthermore, the official HP support website indicates that a power reset can be used as a troubleshooting step to solve several problems including a stall in the printer software installation process.

Skill level:
Moderately Easy


  1. 1

    Press the Power button on the HP Deskjet 840C to turn off the printer. The Power button is located on the front, left panel of the printer.

  2. 2

    Remove the power cord from the back of the printer.

  3. 3

    Unplug the other end of the power cord from the power source and wait at least 30 seconds. This allows the power to completely drain from the 840C printer.

  4. 4

    Plug the power cord back into the outlet.

  5. 5

    Insert the power cord into the back of the 840C.

  6. 6

    Press the Power button to turn the HP Deskjet 840C back on. You have reset the printer.

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