From Nick Higham’s note on Typewriter Art, referring to Bob Neill’s Book of Typewriter Art (with special computer program). Nick wrote the special program back in the early 1980s. What I did to get this output:
- open Nick’s program in GW BASIC under Dosbox;
- modify the program so it wrote the Epson FX printer codes to a file;
- convert those codes to PostScript using epsonps;
- convert it to PDF with ps2pdf.
Bob Neill’s art relies on being able to set a typewriter’s vertical advance to the same value as its horizontal one, and also being able to overprint lines to get darker results. The results are pretty good: tabby.pdf
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