While it shows the driver version as v12 and the driver on the site as v1.11, the driver on the site isnt actually 1.11 but that is the version of the installer itself. Its confusing I know lol
So I downloaded the driver from the site and took a look and looks like the scanner driver version is 12.1.0.0 and the printer driver is showing as 2.00.4.13. At least that what it shows in the inf files.
The part that is odd, all the files still show from 2006, yet this setup was updated in 2009. The only file in the whole thing with a 2009 date is the DelDrv.exe in the driver setup folder.
So what you could do is uninstall the current drivers, reboot and install these. They updated the driver installer for a reason, have it install the drivers and see if it helps at all.
Shane