As my previous post stated - Printing reports with Adobe Flex & AIR can be quite challenging.
I've been prototyping an application that needs tabular reports with a preview and the ability to print or output as PDF. AlivePDF provide the solution to PDF output. i think I've got most other areas working. I've posted the source code and a sample application called TS-Ledger (a mock ledger program that demonstrates the printing facilities quite well).
Click here http://www.thorntonsoftware.co.uk/flex.html to download the source or demo app.
I hope this helps people get to grips with printing reports in Flex & AIR.
Enjoy... Steve
