These printer definition files are for use with the Apple LaserWriter 12/640
and 16/600 printers. The 12/640 supports duplex printing and different feeds.
The 16/600 does not support duplex printing, but does support different
feeds.

The feed options on the LaserWriter 12/640 are as follows:

Single sided, upper cassette
	The 250-sheet cassette

Single sided, lower cassette
	The optional 500-sheet cassette
	
Single sided, multipurpose tray
	The fold down 80-sheet tray when in general use
	
Single sided, envelope/postcard
	The fold down 80-sheet tray when used for envelopes/postcards
	
Double sided, upper cassette
	The 250-sheet cassette with the tops aligned (best for portrait
	binding)
	
Double sided, lower cassette
	The 500-sheet cassette with the tops aligned

Upper first sheet then lower
	The first page is from the 250-sheet cassette. All subsequent sheets
	are drawn from the 500-sheet cassette. This allows you to have the
	first page only on headed paper
	
Upper double sided, tumbled
	The 250-sheet cassette with the tops at opposite ends (best for
	landscape binding)
	 	
Lower double sided, tumbled
	The 500-sheet cassette with the tops at opposite ends (best for
	landscape binding)

