TN3270 Plus Line Printer Daemon (LPD)

TN3270 Plus LPD is a 32-bit print daemon that accepts print jobs from a remote computer and prints them on a Windows printer. TN3270 Plus LPD runs on Windows 8, 2012, 7, Vista, 2008, 2003, XP, 2000 or NT. Any computer operating system that supports LPR (VSE, VM, MVS, OS/390, OS/400 and UNIX) can send print jobs via TCP/IP to TN3270 Plus LPD. 

The diagram below illustrates the print job flow: