Anyone know of a 1970s-style dot matrix "computer photo" generator/converter?

[Dave Caroline]

This all takes me back to the 70's, we made the things, ours were
hardware with a modded chrset in the printer, we used comparaters for
the a-d, 16k dynamic rams and a french printer made by Logabax (huge
lump) and Hitachi camera with the line scan fiddled to get the aspect
ratio right. Quite a few went to Blackpool.

Dave Caroline (archivist)