Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!janus.Berkeley.EDU!judy
From: judy@janus.Berkeley.EDU (Michael Judy)
Newsgroups: comp.sys.mac.hardware
Subject: Printer port to serial port conversion cable?
Message-ID: <38393@ucbvax.BERKELEY.EDU>
Date: 24 Aug 90 01:01:08 GMT
Sender: usenet@ucbvax.BERKELEY.EDU
Reply-To: judy@janus.Berkeley.EDU (Michael Judy)
Distribution: usa
Organization: University of California, Berkeley
Lines: 26

I have recently tried to use a HP LaserJet IIP with a HP
Postscript cartridge, but without Appletalk.  I want to use
the serial port (printer port) on my mac.  I have managed to
find a copy of the instructions on how to modify the standard
Apple LaserWriter driver to use the serial port, but this
set up didn't work for me.  I would get PS ERROR 18 on the
printer.  I think there is simply something wrong with my
cable which I made myself.  I only used 5 pins of the Din-8
and RS-232 connectors.  Unfortunately I can't get the Din-8
connector appart and can't remember the pins I used, but I
do have the pins of the RS-232 that I used.  They are pins
2 (TD), 3 (RD), 6 (DSR), 7 (GND), and 20 (DTR).  

So the questions are:

    1. What is the correct pin connections for a serial cable
       from the mac printer port to the serial port of the 
       HP LaserJet IIP?

    2. Has anyone successfully used a HP LaserLet IIP with a
       postscript cartridge, but without the AppleTalk Card?

Any help is GREATLY appreciated!!  Thanks!

Mike Judy
judy@janus.berkeley.edu