Given:

# lpstat d

What displays on the screen.

A.
The name of the default printer.

B.
The default printers print queue.

C.
A brief description of the default printer.

D.
Detailed status information about the default printer.

Explanation:

The command lpstat d printer1 is used to set the default printer to be printer1. By itself the lpstat d command will display the default printer if one is defined.