Konica Minolta magicolor 7450 II Reference Manual page 224

4
Right-click the printer that was installed, and then click the appropriate
menu command to display printer properties.
5
Select the Sharing tab, and then select the Share this printer check box.
6
Click Additional Drivers.
The Additional Drivers dialog box appears.
7
Under Processor, select the x64 check box, and then click OK.
204 Network Printing