The official source for downloading software and drivers for the Samsung SCX-4521F is now the HP Support Portal , as HP acquired Samsung's printer business in 2017. samsung.com Essential Software for Samsung SCX-4521F
Samsung SmarThru 4 is an integrated software utility designed specifically for legacy Samsung multi-function printers. While Windows can natively handle basic printing tasks through generic drivers, SmarThru 4 acts as the control center for advanced hardware features. smarthru 4 samsung scx4521f software download new
Check the box that says: .
Useful for scanning, but installation can be tricky on modern Windows. The official source for downloading software and drivers