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List: classiccmp
Subject: Re: 3M "WhisperPrinter" (Trendcom 100) docs?
From: Josh Dersch <derschjo () gmail ! com>
Date: 2014-11-30 21:22:43
Message-ID: 547B8AA3.9040305 () gmail ! com
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On 11/30/2014 12:57 PM, Fred Cisin wrote:
> On Sun, 30 Nov 2014, Josh Dersch wrote:
>> Picked this up for nearly nothing at a local recycler, it was too cute
>> to pass up. It's a 3M "WhisperPrinter" (model 1904AA), and it's a small
>> (40 column, 4.5" wide) thermal printer with a serial interface. It
> Are you sure?
> I used to have several PARALLEL port Trendcom 100s.
> Does yours SAY "serial"?
It does not specifically say "serial", but there's a label under the lid
that describes jumper settings for baud rates (300 through 9600). That
said, I don't actually see where these jumpers actually *are* (there is
a suspicious looking cutout behind which is just empty space) so it's
possible that it actually is parallel but still has the baud rate label
for no good reason. I agree that the 20-pin interface would be more
conducive to parallel rather than serial.
- Josh
>
>> appears to work (runs a self-test if you hold the line feed button while
>> powering on) but I don't know what the pinout for the interface on the
>> rear is (it's a 20-pin header).
>> This looks to be a rebadged Trendcom 100 (which I can also find very
>> little technical info about) used on a number of early home computers
>> (Atari, TRS-80, PET). Anyone happen to have a manual for this?
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