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From: daver@hpsgpa.UUCP
Newsgroups: comp.sys.hp
Subject: Re: HP 28C info sought
Message-ID: <2790001@hpsgpa.HP.COM>
Date: Mon, 9-Feb-87 20:31:10 EST
Article-I.D.: hpsgpa.2790001
Posted: Mon Feb  9 20:31:10 1987
Date-Received: Thu, 12-Feb-87 00:21:42 EST
References: <1494@mhuxt.UUCP>
Organization: HP Singapore IC Design Ctr
Lines: 8

>     By the way, if you want to get the printer confused, try PRINTing on a
>number of '28s with the same printer all at the same time. ;-)

The range of the printer was intentionally limited to try to prevent this from
happening accidentally.  Apparently the IR keyboard for the IBM PCjr worked
fine in individual homes, but when schools tried to use them in classrooms they
found a massive interference problem.  This lesson was applied to the 18C, 28C
and RedEye printer.