Can't enter wifi password on Canon Pixma TS9020

I have a Canon Pixma TS 9020 and we recently changed our router password.  When I try to connect the printer to the wifi it doesn't ask for a new password.  Instead it immediately tries to connect to the wifi and then fails the login.  It says I should check the password, but NEVER lets me actually enter a password.  How do I enter the wifi new password into the printer?

Thanks,

Steve