Mark Wickens

Retrochallenge 2026/10

Goals

I have a PSI PP404 line printer, a stack of wide-carriage fanfold paper and two fresh printer ribbons. My goal is to see how far I can push dot matrix printing, be it ascii art, interfacing it to old computers or writing useful utilities. Probably a combination of all three.

Posts

• Choosing a Dot Matrix Printer Project — brainstorming session that picked this month’s project

Source Code

All source code for this project can be found in the companion GitHub repository rc2026_10, documentation can be followed from the main README.md.