Printers Scanners Jul 04, 2010 by OKI · Published Jul 04, 2010 · Last modified Jul 04, 2010 OKI C3520MFP/C3530MFP TWAIN Driver v1.2.1.5 Windows Vista x32 English OKI C3520MFP/C3530MFP TWAIN Driver v1.2.1.5 Windows Vista x3