Epson CX6500 Reference Manual page 360

For Mac OS X
Turn on your Macintosh and insert the software CD into the CD-ROM
drive.
Double click the English > OS X > Drivers
folder.
Double-click the ESCAN folder, then double-click the Epson Scan Installer
icon.
If the Authenticate window opens, click the key icon, enter the administrator's name and
password, click OK, then click Continue.
Click Accept. The Installer dialog box
appears.
Select Uninstall from the pull-down menu at the top left, then click
Uninstall.