OK. Both hyperlinks worked for me. Anyway, it seems Agfa closed their scanner business in 2001 and are not interested.
However, I may have a solution for you:
Try Vuescan. It's not free but works in Windows, Mac and Linux. You can try it before buying.
It claims to support your scanner Agfa1212p. I see there are 2 versions (with and withpout power switch) but they don't make any reference to that.
Login as a normal user (not as root). Browse to:
Go down to the "Linux" link and download. Choose "save file".
Save it in your /home/username folder.
Right click on the vuesca84.tgz
Choose "extract to vuesca84".
This creates a new folder with that name.
In that folder, just double click on vuescsan and it should open. If your scanner is connected and powered it should find it.
If you want a desktop shortcut, just drag the file to your desktop and select "link to file".
Good luck, it's worth a try. I have used in Mac OSX and just today installed it in Fedora 6 and it works great. it's about $40 but I was able to use my Mac registration and serial number so I didn't have to pay again.