We greatly appreciate your patronage of Canon products.
We need to inform you that, due to certain incompatibilities between Mac OS X Lion (10.7) and our previously released Mac OS X 10.6 Printer and Fax drivers, you may not be able to print and an error log file will be generated that could potentially fill up the hard drive of your Macintosh computer.
The following drivers are not compatible with Mac OS X Lion (10.7) and may cause the above issue when used with the affected products listed below:
Mac UFR II LT Printer Driver Version 2.00-2.02
Canon PS Printer Driver for Macintosh Version 2.00-3.30
Canon FAX Driver for Macintosh Version 2.00-3.40
We offer our sincerest apologies to customers who have been inconvenienced by this problem. Canon's quality management resources have been enlisted to ensure that all affected customers can continue using these products with confidence.