I believe it's the same as the DMP-100, in which case it's actually a
single pin believe it or not. Or rather a single hammer with a slightly
slanted vertical line, which hits a horizontal line on the platen and
draws a single dot where they cross. It does draw 7x5 matrix character
cells though so the 7 is also right.
The mechanism is wild. Crazy.
The hammer is slanted by the width of a single dot, and strikes a
horizontal line on the platen, and where they cross it makes a single
dot. It does that 7 times while the platen rotates upwards by one dot
for each strike, and the carriage moves to the right 1/7th of a dot for
each strike, and the slant to the hammer compensates for the rightward
motion so that the 7 dots make a vertical line even though the hammer
was moving to the right the whole time. And just when the platen ridge
has reached the top row of a character cell, the next ridge is ready at
the bottom and it starts drawing the next column of dots. Repeat that
whole 7-dot process for 5 columns per character cell.
This mechanism has always boggled my mind as a great example of the
crazy things they tried in order to get any sort of printing mechanism
that didn't cost as much as a car back then. If the solenoids and pins
of a dot matrix print head were expensive to manufacture, this used only
a single impact solenoid.
Similarly, wrt making it cheap as possible, it isn't even driven by the
motor in both directions, it's only driven to the right and then it
relies on a spring to pull the carriage back to the left to start the
next line of text.
https://archive.org/details/DMP-100_Operations_Manual_19xx_Tandy/page/n13/mode/2up
On 12/3/22 01:10, Hiraghm wrote:
I hope to use my Gorilla Banana printer with my M100; it's only 7 pin, I
think.
On 12/1/2022 3:03 PM, [email protected] wrote:
Message: 1
Date: Thu, 1 Dec 2022 11:26:44 -0800
From: Gregory McGill <[email protected]>
To: [email protected]
Subject: Re: [M100] Retroprinter settings
Message-ID:
<capgsn8zqu2-9kefuacmqarebyz9nyhci_etwrbanbn6k0rn...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
likely the epson 9pin.. that will handle straight ascii and you can
use the
codes for anything else
On Tue, Nov 22, 2022 at 3:17 PM Will Senn <[email protected]> wrote:
Anyone using the Retroprinter? Please share your configuration:
/root/config/emulation
/root/config/epson_pins
Also, which of these sound reasonable for use with my Model 100:
HP Printers
Epson ESC/P 9 pin Printers
Epson ESC/P2 24 Pin / 48 Pin printers
Postscript Printers
IBM ProPrinter Printers
Plain Text Printer
Printronix Printers
I'm thinking Epson ESC/P 9 pin and Plain Text, but given how ignorant
I am
of printing with the M10, I figured I'd ask y'all first.
Thanks,
Will
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