We are also seeing numerous customers with printing problems following Big Sur upgrade. We did a litany of testing today and here's what we found:
TEST: Using Chrome or Firefox, create a new Google Doc and make Calibri your font.
Add a line or two of text on page 1, and hit enter until you get to page 2, then enter some dummy text there as well.
Try printing both pages directly out of Chrome. In our experience page 1 will print fine, but anything after that will give a font error. If you print just page 1, or just page 2 by themselves, it works fine. Additionally, if you do the same test with Arial instead of Calibri it works just fine. It doesn't matter if we're sending this to a Sharp MFP, a Canon, or an old HP LaserJet. The same Google Doc that fails in Big Sur will print both pages fine in previous OS versions.
FINDINGS: Only happens on MacOS Big Sur (patch level doesn't matter.)
Only shows up when printing 2 or more pages at a time (first page always prints fine, font errors on any following.)
Using Calibri is the easiest one to reproduce the behavior, although we have seen some issues with Trebuchet as well. Arial works fine.
We can reproduce this behavior on Sharp, Canon, and HP printers.
It doesn't matter if the printers were deployed through an MDM or manually added to the machine.
If you download a PDF file so the OS isn't processing the fonts, it prints fine.
We can work around the issue by printing via Airprint or choosing a generic postscript driver, but then our customers aren't able to do any of the advanced feature printing that they use on these MFPs (tray selections, duplex, hole punch, stapling, collating, etc.)