Paper Source Options - Mac OS X 10.4

You can select any of the available options in the Paper Source menu to print from paper loaded in that source.

Auto Select
Automatically selects the paper source based on the selected paper size.
Paper Cassette 1
Selects the paper in cassette 1 as the paper source.
Paper Cassette 2
Selects the paper in cassette 2 as the paper source.