If you are using Wireless Canon printers, then the error occurs mainly due to communication problems. The below-mentioned steps will help you to sort out the issue quickly.
First, press the Setup button of your printer
In the next step, go to Wireless LAN setup and then press OK
After that, select Easy Setup and again press OK
Then, go for the Access point
Next, give the WiFi password and press OK
Insert the Setup disk in the computer
For More details: https://www.canonprintersupport247.com/blog/fix-canon-printer-not-responding-error/