Wireless connection to Canon s600-won't print

Hi all:

I have a Canon s600 which I use with an IBM thinkpad and Mac Mini. It is hardwired to a Linksys print server and router and works perfectly when I print wirelessly from the Thinkpad. It functions adequately, taking into account that the driver is not quite right when used in a network fashion with the Mac mini, but only if the Mac is hardwired via the ethernet connection to the router, in turn hardwired to the printserver and to the printer. I cannot get it to print if the Mac is not hardwired to the router although the Mac sees the router and seems to talk to the router wirelessly. How do I set up airport to get this configuration to work?

Thanks for any suggestions.