We are having exactly the same issue as described above.
Did this ever get answered?
We are using:
Acrobat 11.0.3
Word 2010 (V 14.0.7015.1000 32-bit)
MS Office Home and Business 2010 SP2
Windows 7 Professional SP1 64-bit
The problem seems to occur only when, in Word, we use File - Print - Printer Adobe PDF, email the resulting PDF file to another office, and then printout on a Toshiba Studio 2330c printer.
If we print the file locally to a Toshiba Studio 2550c printer then it prints ok.
It also prints ok if we, in Word we use the Acrobat tab, click Create PDF, email the resulting PDF file to another office, and then printout on the same Toshiba Studio 2330c printer.
Any ideas?