Well, you're certainly welcome to chase the Hidden ghost if you wish, but
keep in mind that Hidden is a font formatting attribute & as such travels
with the doc - just like bold, italic, color, etc. So, if the text is
formatted as Hidden on a Mac it will be formatted as Hidden on a PC... or
another Mac... or another PC.
You can try Command+A to select all, go to Format> Font & see if a check
appears in the Hidden box. If not, there is no Hidden text. If there is a
gray check there is *some* text formatted as Hidden so remove the check
(probably 2 clicks). In order for all text to be Hidden (you are saying
*nothing* prints, right?), however, you'd find that there is a black check
in that same box. If that were the case, though, all text would display a
purple dotted underline when ¶s are displayed.
Or, You can go into Print Prefs & tick the checkbox to Print Hidden Text.
But I don't think either will make any difference.
No disrespect for your "tech DEPT" but what they "think" is irrelevant
Has anyone bothered to go to the support site for the printer mfr to *see*
if updated drivers are available? [I *think* I'm perfectly sane, but proving
it in a court of law might be somewhat of a challenge
]. Many changes have
taken place in both OS X and Office & print problems are normally introduced
because most peole don't think about updating driver software accordingly.
Some time ago a printer I bought wouldn't work when installed and after
several days of troubleshooting, cussing & threatening the supplier I found
that the driver had been updated *twice* since the printer had been
manufactured & shipped into the pipeline.
Track Changes "could" be involved, but not likely. It's hard to guess
without seeing the doc itself, but as already stated, if the problem were
with the doc there would not be any content displayed in Print Preview - if
Print Preview displays it, the printer should print it because Print Preview
is generated by the Print Driver.