I have the same problem on FC3 but with my USB printer. I suppose there is some problem with USB 2.0 on FC3. However, I can use the same printer on 2.4 series kernel on slackware and 2.6 series kernel on SuSE 9.1.
usb 1-3: device not accepting address 2, error -110
This is the same error I encountered with my printer setup. Please search for my posts and you might get some leads.