In order to print from a Windows 3.1x machine to a LaserWriter over ethernet, you need more than just the proper cabling. You also need additional networking software that allows the computer and the printer to "talk" to each other via a common protocol. All ethernet-capable LaserWriters support the AppleTalk protocol. Some also support printing via Novell NetWare servers (IPX protocol) and lpr printing (TCP/IP protocols).
If you want to print via AppleTalk from the PC, you will need an AppleTalk software package for Windows 3.1x. Please refer to:
TIL Article 19652: "
Connectivity between PC-Compatible and Macintosh Computers on a Network" for further information.
If you want to print via IPX from the PC, you will need a NetWare server and the NetWare client software for Windows 3.1x.
If you want to print via TCP/IP from the PC, you will need to install an LPR client and a TCP/IP software package for Windows 3.1x.