Once an iPrint printer has been installed, is it possible to make changes and re-distribute the updated driver automatically?

Example, Printers have been installed using PCL driver, but I have reason to change to Post Script. Is there a way to re-install the new driver?

I know iPrint checks the version of the client, and will update it if it's out of date... And it will remove the printers from the workstation when the printer object is deleted. But I can't find a way to update the driver... And I need it!

If not, it would be an awesome Enhancement (driver versioning).