Path: utzoo!utgpu!watmath!isishq!Geoffrey.Welsh
From: Geoffrey.Welsh@isishq.FIDONET.ORG (Geoffrey Welsh)
Newsgroups: comp.sys.cbm
Subject: Re: Problem with MPS-1000 printer in IBM mode
Message-ID: <947.23A6D6E5@isishq.FIDONET.ORG>
Date: 14 Dec 88 14:17:02 GMT
Organization: International Student Information Service -- Headquarters
Lines: 38


 > From: seeley@dalcsug.UUCP (Geoff Seeley)
 > Message-ID: <218@dalcsug.UUCP>
 
 > One problem I have found with the MPS-1000 pirnter is that
 > when you are
 > working with the IBM mode (almost completely Epson compatible),
 > the
 > only way to get the printer to output ANYTHING is to open
 > the printer
 > with a secondary address of 255 or no S.A. at all.
 
   The problem is that a printer in IBM or Epson mode has no comprehension 

whatsoever of what a secondary address is, so it may interpret it in 
any of many ways. Jeers to Commodore for not taking this into account 
in one of their own printers.
 
 >         Does anybody know of a hardware fix (ANYTHING!)
 > that
 >         will cure the IBM mode of the MPS-1000, so that
 > it
 >         will print no matter WHAT secondary address is
 > passed
 >         to it.
 
   Humm. If this were a genuine parallel IEEE-488 bus, I'd have a solution 

for you. However, since the MPS-1000 probably accepts only serial IEEE 
(or perhaps Centronics) buses, there's little you can do externally.
 
   Burning a new ROM may not be too difficult if you're into m/l programming.


--  
 Geoffrey Welsh - via FidoNet node 1:221/162
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