wireless router > airport express > printer = problems

I'm trying to set up my printer to print wirelessly.

This would be really easy if I was just connected to my airport express, but unfortunately, I'm also running a wireless router.

it goes like this, wireless router, wired airport express, then printer.

I can do airtunes, but cant see my usb printer. I've unplugged, reset, turned off/on, yet nothing.

Ideas?

 

epson 1280, which i've been able to print with while connected to the airport express' network.

ah, I think I figured it out.

i'll wait til later and update with whatever