Canon PIXMA iX6540 Driver Changelog
What's new in Canon PIXMA iX6540 Driver 10.67.2.0
Oct 15, 2013- The ink level information is not displayed in [Supply Levels] when the printer driver is upgraded to v10.67.1.0.
New in Canon PIXMA iX6540 Driver 10.67.1.0 (Sep 6, 2012)
- OS X Mountain Lion (v10.8) has been added as a supported OS.