Brother DCP-1510 Printer is not Attached to My Windows 7 Network, What to Do?

I had to reinstall Windows 7 and have lost the ability to connect to a Brother DCP-1510 attached via USB to my router. The computer in question is attached to the router via an ethernet cable – i.e. NOT wifi. I think I recall I once found a utility which would connect to the printer when needed and control printing. This utility was not part of the driver set supplied by Brother but something I subsequently downloaded. I can print if the printer is USB attached to another computer on my house LAN but not if it is plugged directly into the router. I don't have a copy of whatever this was and can't find it anywhere. Does this ring any bells for anyone?