How do I log in to my Canon printer?

Open a web browser and connect your Canon printer to your network in order to log in. To go to the login page, type the printer's IP address into the address bar. Typically, "admin" is the default username and password. Use your Canon account information to log in to the Canon website or app to access cloud capabilities.

https://ljstart-canon.hashnode.dev/how-do-i-log-in-to-my-canon-printer

How do I change My Canon Printer Login Credentials?
To change your Canon printer login credentials, access the printer’s web interface by entering its IP address in a browser. Go to the settings or administration tab, then update the username and password. Save changes and reboot if needed. Always use strong, secure credentials to protect your printer.
https://medium.com/@ljstart-canon/how-do-i-change-my-canon-printer-login-credentials-6797e0ed2ac6