Howdy MMA_va,
It sounds like you are concerned with the printers compatibility with Mavericks, and whether or not the drivers can be downloaded rather than installed from a disc. According to the following article the MG2500 series is compatile with Mac OS X.
As far as downloading the software for it, typically any updates are downloaded using Software Update on your Mac, but you can also check the manufacturers website to see if theres an executible that can be downloaded:
Drivers & Downloads. The PIXMA MG2520 comes with My Image Garden 3 software that puts all your favorite printing features, such as Special Filters and Full HD Movie. Or Mac with Intel ® processor and Canon ZoomBrowser EX 6.5 or later or Canon ImageBrowser 6.5 or later for 'MOV' files, or Canon ImageBrowser EX 1.0 or later for 'MOV'.
Canon
Thank you for using Apple Support Communities.
All the very best,
Sterling
Mar 8, 2015 12:38 PM