Modem router wl-600g
Printer is plugged on the router.
Go to -> System preferences-> Printer and Faxes.
Add Printer -> Choose the IP setting -> set the option LPD
->as the address set this ip: 192.168.1.1 (the one of the router)
For some reason without this next step the printer wont work.
->type „LPRServer” in the queue description
-> set the drivers of the printer, do not set any other drivers.
Save and you are done.