Package Type: Windows 64 bit Printer Driver Package
Models: MX-M623U/N, MX-M753U/N
Driver Types Included in Package: 

WHQL PCL6 Print Driver ver: 02.00.03.02 
WHQL PS Print Driver ver: 02.00.02.02
WHQL PPD ver: 1.0.0.15

WHQL XPS Print Driver for Windows Vista Only! ver: 01.03.37.01

Universal PCL6 Driver ver: 02.00.14.14 

For OS Versions:  7, 8, XP, Vista, Windows Server 2003, Windows Server 2008
Windows Server 2008 R2, and Windows Server 2012 

