Hello, ive been reading this thread with much interest as we have been experiencing similar problems.
For the most part we have been very happy plotting (HP 1055CM, networked) from vectorworks 8.5 to 10.1.2 under OS9x but like many other people we have begun experiencing problems printing under OSX 10.2 to 10.2.6.
About a week ago I had to conclude that the reason we couldn't print certain drawings was due to certain fonts within the drawings, as all drawing tests without text, print. All drawings that are pdf or preview print. I and my colleagues would have been more than happy to use preview to get around the situation but there appears to be a problem with the print scale when a preview document is printed. I have read information about getting around this issue but it has not been easy to achieve the resolve discussed and thus I have come back to the fonts theory in an attempt to resolve it once and for all.
I downloaded fontdoctor x V5.5.2 and ran the programme in demonstration mode, I checked all the font locations and all came back clean except one. HD/library/fonts/ according to the application there are missing postscript fonts within a range of Helvetica sizes. Could this be the problem ive been looking for ?.
I would need to purchase the software to enable the fix but thought I would run it past yourselves first.
Many thanks for your time in this matter, leo.