Thinking to check up again on this program, I was intrigued to see reports of updates to it and pleased when I was able to get the code provided by Brad Ackerman to compile on macOS 12.7.2 with shifted characters working. As I got around to trying the Epson FX-80 emulation feature, I did think about how I'd captured printer output from a Color Computer emulator only able to "save to a file" and fed that into standalone command-line programs that could turn Epson graphics commands into PDF files....
I tried out your version on macOS 11.6.1, and the shifted punctuation characters that just didn't work in my own build typed properly. I did notice, though, that when the emulator speed is set to 2.4 MHz the screen redraws very slowly with each new line of text, as it did when I was running the Windows version 1.7 via Wine. (Bumping the speed up to "Very CPU Friendly" makes things usable, if peppier than I recall the Model 100 actually being.) Even so, I do want to thank you for your work.
Shifted punctuation keys don't type (macOS builds)