What bass-ackwards printers are they using? I'd have guessed that most printers used in a corporate environment are postscript based, so support shouldn't really be an issue.
Not in my experience. Printers tend to be a crazy mess of different technologies supplied by the cheapest supplier/closest friend of the IT Manager/whatever someone found at Best Buy/etc. I'd estimate maybe 25% of the printers I've seen in corp environments support Postscript, about 50% support some variant of PCL (which mostly overlaps the Postscript ones) and the rest are a mix of custom drivers and just plain bizzare cruft.
If it makes you feel any better, the non-PS/PCL ones tend to not have x64 drivers for Windows so the whole thing just demonstrates the typical corporate shortsightedness in purchasing decisions.
Scanners in a corporate environment tend to be photocopiers with a network card that dumps a file somewhere so they likely won't be as much trouble as a printer. There's still the odd bizzaro scanner that just doesn't have drivers for anything but Win95 but those are slowly dying out. Assuming SANE is a very, very risky proposition.
Having a Windows Print Server doesn't really work because Windows works best by offloading the rendering to the client rather than using the server.
So, the print driver issue is likely real (though odd because it would have been cheaper to just get Linux compatible stuff for far less than driver development costs); the interop between OpenOffice and MS Office is definitely real; and there's more likely a lot of plain bad planning that just made a mess of the whole migration which put a bad name on tech that really isn't that bad.