Canon Support website provides all the necessary drivers for you printer including the version for Windows 7 64-bit. From the drop-down menus, select Drivers and Windows 7 64-bit. Then download the appropriate drivers for your printer. Please ignore the fact that the page displays 1330 series, your printer is also supported.
After you download the driver, perform a normal installation guided by the setup. A computer restart will be necessary for a correct driver installation.