I downloaded the gobal driver offered here but Windows 10 on my new Dell 7760 will not add this print driver. When extracted , there are two files, both .inf When selected in the add printer box, the boxblanks out and will not show a print driver choice. What went in when I initially added a printer was labeled 7700 series class driver. So, that one will print but will not print color in my 7775, only black and white. The color feature looks like it would work when viewing the preview of the page but the printed page is black and white.
It seems support for the WorkCentre 7775 has been removed from the current version of the Global print driver.
The version available late November 2019 did have support.
Is there a link to the previous versions of the Global print driver from about that time (or the last version that supported the 7775)? PCL6 V3, 64 bit