Leopard no longer offers a menu allowing the creation of desktop printers. Pascal has informed us about this method to easily create one:
There is a hidden solution
Open the System Preferences / Print and Fax.
It is simple enough as dragging and dropping a printer icon onto the desktop and it is created.
Then just drag and drop documents on the icon to launch a print task.
It's simple and it works.
[translation by jwa]