How to Reset a Canon MX850 to Its Default

Written by paul ramone
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The Canon PIXMA MX850 is a combination computer printer and scanner that is capable of producing full-colour photo images and copies. The networkable device prints at 4800 dpi resolution and produces borderless 4-by-6-inch photos in a little over 20 seconds. Resetting the printer may be your best option if it suffers a software failure. Thankfully, performing a "hard" reset is very basic and only takes a few minutes to execute.

Skill level:
Moderately Easy


  1. 1

    Turn off the Canon MX850 by pressing the power button on the top-right side of the unit.

  2. 2

    Unplug the power cable from the power connection on the back of the Canon MX850 and the electrical wall outlet.

  3. 3

    Remove the USB cable connection from the printer's port and the USB port on your computer.

  4. 4

    Allow the printer to remain unplugged for 60 seconds, then reattach the USB cable and power cable to the printer.

  5. 5

    Turn the printer back on by pressing the power button. The Canon MX850 is now properly reset to system defaults.

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