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. Circa 1983.

HP 2564B line-matrix system printer. 600lpm, PCL Level II, 16-channel downloadable VFC, multiple character sets, tractor feed, 132 columns, 70x72 dpi raster graphics. I have both the HP-IB and RS-232 interfaces for it. Circa 1986.

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 # / + : = ' ( ) > <

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 the tape.