The PDF in the Downloads section of this FAQ details how to install the CUPS driver and assign an IP address to a Star Micronics Ethernet Printer via Web Browser on Mac OS X 10.7 Lion, 10.6 Snow Leopard, and 10.5 Leopard.

Setting the IP Address via web browser should be done if DHCP is enabled on the network, and when the printer can automatically receive an IP Address upon connection.
For networks that do not support DHCP, please see our FAQ detailing how to assign an IP Address via Terminal.

Supported Models: TSP100LAN, TSP650, FVP10, TSP700II, TSP800II, HSP7000, SP700, TUP500
Supported Interface: Ethernet
Supported OS Versions: Mac OS X 10.8 Mountain Lion, 10.7 Lion, 10.6 Snow Leopard, 10.5 Leopard

  STAR MICRONICS CO., LTD.

    Technical Support
           Star Global Support Site

    Star Sales Offices
           Americas | Asia | Australia | Europe | SE Asia