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 and 12/660 do not support duplex printing, but do support
different feeds.

It is necessary to update your printer choices in order to use these PDFs.
To do this, simply drop the !Boot supplied onto your existing version.

DO NOT DELETE YOUR EXISTING VERSIONS OF !BOOT OR !PRINTERS

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)
