I cannot find the Wireless USB Print Server's name in the Chooser.

Possible Solution:

Make sure that AppleTalk is on (the button next to Active is highlighted in the Chooser).

Possible Solution:

Make sure that the printer is on and is in the READY state for a few minutes before attempting to print.

Possible Solution:

Make sure that the printer has not been renamed since the last time it appeared in the Chooser.

Possible Solution:

If the printer is on a network with multiple zones, make sure that the correct zone is selected from the AppleTalk Zones box in the Chooser.