RDC printing not working

I'm connecting to a Windows Server 2008 R2 64bit TS remote desktop over the Internet using RDC on Windows 7 64bit. I can see all my redirected printers (e.g. "Canon LBP3010/LBP3018/LBP3050 (redirected 2)" and "Microsoft XPS Document Writer (redirected 2)") and print to them, without error (can't see anything in the error logs on client or server), however nothing prints.

Any ideas how I can troubleshoot or fix this?

PS: Redirected printing is working with Logmein (connected to a different machine) so there doesn't appear to be anything wrong client side.

Thanks, Simon

Simon Pollock