Konica Minolta bizhub PRO 1200 - Manual (Page 22)

Installation
3
bizhub PRO 1200/1200P/1051 3-3
Printer Installer shows you a list of printer models to be installed. If no
model is shown, click [Have Disk] to select an .inf file in the printer driver
folder on the CD-ROM for your operating system.
Select a printer model and click [Next].
Note
During printer installation, Windows may show a warning about a
missing digital signature. You should continue the installation anyway.
After the printer installation, the printer can be selected from the print
dialog of your applications.