Date   : Fri, 28 Sep 1984 10:47:48-PDT
From   : Ronald Blanford <CONTEXT%washington.arpa@csnet-relay.arpa>
Subject: Re: Kaypro-10/Diablo 630 interface troubles

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There was a similar problem (well, not too similar) with the NEC Advanced
Personal Computer and its parallel connection with the printer that turned
out to be an incorrectly connected ground on the processor circuit board.
It was only evidenced with certain makes of printer. -- Ron