HP Photosmart C4280 All-in-One Printer Software and Driver
OS: Windows 7 All (32-bit / 64-bit)
HP Photosmart c4280 Driver for Windows 7
OS: Windows Xp ( 32-bit / 64-bit), Windows Vista ( 32-bit / 64-bit), Windows 2000, Windows server 2003, Windows XP Media Center
OS: Mac OS X, Mac OS X 10.6