Data General LDM 800 line printer, actually a re-badged Mannesmann-Tally
MT-661. 800 lines-per-minute, line-matrix. Circa 1989.
HP 2934A dot-matrix office printer. 200/67/40 characters per second,
bidirectional printing, multiple fonts, tractor feed, 136 columns, 90x90 dpi
dot-addressable raster graphics. I have both the HP-IB and RS-232 interfaces for it.
Character drum from an unknown line printer, probably mid-'70s. The drum
has 160 columns spaced at 1/10", and 64 character positions for each
column. Each row of characters contains the same character across the drum.
The character set is as follows:
0 1 2 3 4 5 6 7 . 8 , 9 - E T A I S O N H R D L U C M F W Y P G 0 1 2 3 4 5 6 7 . 8 , 9 - V B K J $ * Q X Z # / + : = ' ( ) > <
Carriage Tape Punch
IBM carriage tape punch. This was used to punch holes in a paper tape used to
control vertical forms spacing on a line printer such as the 1403. The
Vertical Format Unit had 12 channels, any of which could be selected to
advance the paper a specified number of lines, according to the punches on
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Last updated on
Friday, October 18, 2019