You should press and hold the Wi-Fi button for a few seconds to start the connecting procedure ij start canon ts3122 chromebook. Once the light lamp starts blinking once, go to the router and hit the WPS button. Navigate to the “Chromebook” option, then click the “Settings” icon. Choose the “Advanced” option, then select the “Printers” option under the “Printing” section. You must then select “Add Printer” before selecting “Add.” As a result, your Chromebook will be linked to your wireless printer.
Source: https://ijstartcanon.ca/ij-start-canon-ts3122-chromebook/