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From: appelbau@topaz.UUCP
Newsgroups: comp.sys.atari.st
Subject: LaserPrinter Memory Requirements
Message-ID: <10328@topaz.RUTGERS.EDU>
Date: Mon, 23-Mar-87 09:07:55 EST
Article-I.D.: topaz.10328
Posted: Mon Mar 23 09:07:55 1987
Date-Received: Wed, 25-Mar-87 01:46:07 EST
Organization: Rutgers Univ., New Brunswick, N.J.
Lines: 63
Keywords: direct from Atari
Cc: appelbau

Here is a copy of a message I recieved from Art Morgan:

Memo           Laser Printer Image Memory Requirements

Date           22 March 1987

>From           Art Morgan
               Project Gutenberg
               Atari Corporation

To             Marc Appelbaum




     The horse's mouth that you refer to may actually  be  a
horse's  ass   :^).   I  believe the confusion stems from my
diagram of the Atari ST  Desktop  Publishing  System,  which
shows the Atari MEGA ST4 (4 meg) as the image-processing hub
of an IDEAL Atari desktop system.

     In reality the memory  requirements  of  a  letter-size
page  image is 954000 bytes, well under 1 meg.  Here are the
memory requirements for the paper  types  supported  by  the
Atari SLM Laser Printer:

Paper           Dimensions                      Memory

 LETTER          2400 dots by 3180 lines         954000 bytes
 LEGAL           2400 dots by 4080 lines         1224000 bytes
 A4              2336 dots by 3386 lines         988712 bytes
 B5              2016 dots by 2914 lines         734328 bytes


     The above requirements do not apply  to  Dave  Staugas'
printer emulator, which uses a character generator "banding"
technique requiring around  32  Kbytes  of  effective  image
memory.   That's why Dave's emulator can run on an Atari 520
or 1040 ST system.

     I hope this clears the confusion.   If  you  feel  like
posting  a  correction  to  the  net using this information,
please feel free to do so.



Best regards,

Art Morgan
Project Gutenberg
Atari Corporation



                       March 22, 1987

I think this should clear up all the confusion about the memory needed
for the Laser Printer.  I would also like to thank Art once more.
-- 
 Marc L. Appelbaum 				"If life is a game of chess 
 Arpa:appelbau@topaz.rutgers.edu                 and you and I are pawns
 Uucp:rutgers!topaz!appelbau                     what happens when we get to
 GEnie: M.APPELBAUM		                 the other side of the board?"