The MS device for compact Macs was called the MacEnhancer. It was later sold by Phoenix, the company responsible for many PC BIOS implementations.
After struggling in the wrong room, I found my boxed Orange Micro Grappler 9-pin adapter. As NJRoadfan notes, it comprises a serial to parallel adapter, with drivers for Apple II and Mac.
Tscript made a PostScript translator which worked with various printers -- not recommended for a 24-pin dot matrix. But it shipped with a serial to parallel adapter, as did some HP printers.
After struggling in the wrong room, I found my boxed Orange Micro Grappler 9-pin adapter. As NJRoadfan notes, it comprises a serial to parallel adapter, with drivers for Apple II and Mac.
Tscript made a PostScript translator which worked with various printers -- not recommended for a 24-pin dot matrix. But it shipped with a serial to parallel adapter, as did some HP printers.