Runner,
I regret that there are limited options. By an exclusive agreement, our plans are only available on the TrainingPeaks platform, and TrainingPeaks does not make it easy to print them. You can just print the calendar from a browser. It does not look great but does work. Be sure to change the browser zoom first and you can fit about 12 weeks at a time on the page.
Or, you can also export your plan 2 weeks at a time to an actual external calendar, where you have lots of options to print from there. See https://help.trainingpeaks.com/hc/en-us/articles/204072184-Sync-your-calendar
Finally, in a strange loophole, if you buy the audio version of the book 80/20 Triathlon, it includes PDFs of all the plans (because the audio book includes all the tables as PDF, and the plans are considered a table).
David