We will write in english:
Please download drivers here: http://www.kodakalaris.de/b2b/common/drivers/i30-and-i40-scanner-driver
Note! This drivers will only work up to Windows 7 NOT(!!!) for Windows 8 or 10.
If you already have installed drivers, you may open the TWAIN-driver on devices menu and you are able to scan.
Please check.