Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!crdgw1!galaxy
From: perley@galaxy (Donald P Perley)
Newsgroups: comp.sys.amiga.applications
Subject: Re: Anyone seen Amiga GhostScript???
Keywords: PostScript
Message-ID: <20098@crdgw1.crd.ge.com>
Date: 31 May 91 13:41:15 GMT
References: <1991May27.022940.14707@watdragon.waterloo.edu>
Sender: news@crdgw1.crd.ge.com
Reply-To: perley@galaxy (Donald P Perley)
Distribution: na
Organization: GE Corp. R & D, Schenectady, NY 12345
Lines: 20
In-reply-to: bwhemphill@rose.uwaterloo.ca (Barry Hemphill)

In article <1991May27.022940.14707@watdragon.waterloo.edu>, bwhemphill@rose (Barry Hemphill) writes:
>
>write a PostScript driver for my Roland PR1012 9-pin printer because it has
>a 240x216 dpi mode (no kidding - all Epson 9-pin compatibles should, just no
>one ever writes anything to use the mode; it is excruciatingly slow).

I don't know the numbers for 9 pin printers, but a lot of 24 pin printers
have a 360x360 mode.  The problem is that 360 dpi is the resolution, but
the pin diameter is actually about 1/120 inch.  The smallest dot you can
print is 3 times as big as the addressing resolution.. you can just place
it precisely.  The bottom line is that you can print a smooth line, but
not a very thin one.  The 9 pin printer will have a similar effect in 
the 240x216 mode, but with different numbers.

Beyond that, you are limited by what a cloth ribbon can print.  For 
best results you need a printer with a carbon film ribbon (which can only
be used once).

-don perley
perley@trub.crd.ge.com