[GreenKeys] High Speed Printer

[Paul Anderson]

This is a little off-topic, but I hope some here can help me.  I
remember seeing a very old form of high speed printer, and can't seem
to recall the name for it.  The unique part of it was that it used a
series of 'letter bars', one for each column on the page.  On the edge
of the bars, the letters and characters the machine could print where
raised.  The machine would print one entire line at a time, by setting
the bars for each column to the appropriate height, drawing them back
and striking the ribbon.  The page would then be advanced to another
line.  The only other place I've seen this method of printing was on
old adding machines, where it seems rather common.

Is anyone familiar with these printers?

-- 
Paul Anderson
wackyvorlon at gmail.com
"Lex Dicavit"