Canon MF8580Cdw User Manual page 716

3
Click [Default], and then select a printer name for which [USB] is displayed in the [Kind] or
[Connection] column.
4
Select [Select Printer Software] from [Print Using].
5
Select a driver that is capable for this machine from the driver list, and then click [OK].
If you are using Mac OS X 10.5.x, clicking [OK] is not required.
6
Click [Add].
7
If the following screen appears, specify the optional settings, and then click [Continue] or [OK].