[Scott01]

Like any other device, even the Canon printer encounters errors and problems. One such problem is the printer offline error, which indicates that the printer and the computer cannot connect.
Since the printer works, while connecting to a network and to the device, a problem in the configuration can cause a canon printer goes offline error. However, it can be quite frustrating to see the offline status, especially when you are in the middle of important work.

[entirehelp1]

Also Here: canon printer is offline

[askanyquery]

Install apt and fresh Group Printer Programming in your framework. All things considered, open the Control Board and go to Gadget Administrator. Then, at that point, track the printer choice and double tap on it. From that point on you can turn on the web-based method of group printers of how to connect canon mg3500 printer to wifi.