[Paper Source] preferences pane

You can specify the paper source settings such as the paper selection and paper type.
[Paper Source]
Select a paper source.
[Auto]: Automatically selects a paper source.
[Multi-purpose Tray]: Supply paper by hand.
[Drawer 1] - [Drawer 4]: Supplies paper from the drawers.
[Paper Type]
Selects the paper type to be used for printing the document.
[Feed A5 Horizontally]
Specify the feeding direction of the paper (orientation) when using A5 size paper.
[Feed Statement Horizontally]
Specify the feeding direction of the paper (orientation) when using Statement size paper.
[Feed Custom Paper Horizontally]
When feeding custom size paper of the following sizes horizontally (in landscape orientation), select the check box for this option.
Short edges: 5.0 and 8.5 in. (12.70 to 21.59 cm)
Long edges: 5.0 and 8.5 in. (12.70 to 21.59 cm)