Can't print a multi-page thread in the discourse

folks,

i grant you, i am making progress, did backups, and now am trying to learn how to do a recovery.
so i found ,How do I restore files… and it is about 28pp or so with all the comments back<>forth.

i am old-style (and also: chronologically ‘old’), so i want to print it and study it, but if i try to print, it prints 5pp and then 22 blank pages with only headers/footers; this is the same if i try to save to pdf. in both cases, it goes 5pp, then blank pages with headers/footers, and ends with New and Unread Topics on pp 28/28.

clearly my trial-by-fire learning experience continues.
any chance there is something simple i am doing wrong?
however, for sure, the pc and the printer ARE plugged in and there is CONTINUOUS power.

thanks,
ron