Hi Jan,
Welcome to the HP Forum!
You won't find Canon printer software here on the HP site -- you have to find the software at Canon printer support.
Try here: imageCLASS D480 Driver
It appears that there is some level of driver support for Windows 8 -- whether that is "full feature software" support or some form of basic driver support is something you can determine when you check the site and the software.
Click the KudosStar!
It is a nice way to say “Thank You” for the help.
Although I strive to reflect HP's best practices, I do not work for HP.