Fixes: 1. [Mac OS X 10.5.x] Printing using Bluetooth connection cannot be performed. 2. (Phenomenon) The numbers in Start time / End time in Quiet Mode of Canon IJ Printer Utilities may not be changed when users specify them on the keyboard. (Preventive action) Specify the time using the arrow buttons. 3. Phenomenon: When printing using AirMac via USB cable, the print speed may become slow. (Case 1) Application: Preview Print data size: 16.0MB (Case 2) Application: Text Editor Print data size: 8.0KB Print time v10.5.8 (Case 1) CUPS driver: Approx. 9 min. Legacy driver: Approx. 1 min. (Case 2) CUPS driver: Approx. 30 sec. Legacy driver: Approx. 30 sec. v10.6.3 (Case 1) CUPS driver: Approx. 8 min. Legacy driver: Approx. 2 min. (Case 2) CUPS driver: Approx. 5 min. Legacy driver: Approx. 1 min. 4. When ColorSync is selected in Color Matching, no operation can be performed in Color Options. All the items other than Sample Type are grayed out. Please do not forget to check with our site as often as possible in order to stay updated on the latest drivers, software and games. Note: Try to set a system restore point before installing a device driver. It will help you restore system if installed driver not complete.