Here are some steps you can take to reset your printer to its factory settings:

1. Check the user manual to see if there are specific instructions for resetting the printer.
2. Turn off the printer and disconnect the power and data cables.
3. Wait for two minutes for the printer to discharge all of its power.
4. Reconnect the printer again.
5. Turn the printer back on and print a calibration and test page.
6. Check if the reset was successful.