Brady M511 - Cleaning the Position Sensor; Sensor Cleaning Steps

M511 User Manual 21
Setup
Accessories
To attach the magnet accessory to the printer:
1. Slide the magnet keeper plate off of the magnet.
2. Position the magnet accessory on the back of the printer so that the screw holes line up.
3. Screw in the three screws that come with the magnet to affix it to the printer.