1)   DOSPRN 1.78
DOSPRN allow to use your old favorite DOS program with new printers independently of their types. Yes, and USB also.
DOSPRN, DOS print, prn2file, print, printing, DOS USB, dosprint, printfil, dos program, usb printer,

 2)   Brooks RPM 9X LPD Print Server 2.5.1.28
SCS to ASCII translation & EBCDIC to ASCII translation, Remove PCL codes & convert LF to CRLF, ASA carriage control & code page support, the ability to insert and append bytes, Character translations and extensive form printing controls.
lpd, print server, line printer daemon, remote printing, print queue, print management,