Canon printer may go offline unexpectedly because of several different reasons, the foremost prominent being the network connectivity glitches or using out-of-date Canon printer drivers. Hopefully, the answer presented here will resolve your query on My Canon printer is offline . First of all, begin with restarting your network router, reconnect the cables at their planned slots, replace the frayed or exhausted cables, and ensure you're trying to connect your Canon to the same router as your computer. Next, you need to set your Canon printer as a default device on your computer. For that, attend the control panel , right-click on you'll on the printer, and click on set as default. Now open the print queues, click the printer tab and ensure we Use Printer Offline option isn't checked. You’ll again click the use Printer Offline option then uncheck it again to verify the settings.