Tiny Core has the socat.tcz extension which will probably work. There is a
man page with more information. In your case, this should work:
sudo modprobe lp
socat -u TCP4-LISTEN:44444,reuseaddr,fork OPEN:/dev/lp0
If you are sending binary data (rather than just text) to the printer, you will need raw access to the parallel port via /dev/parport0. This driver
is not part of the base, so you must compile the ppdev module yourself from the Linux kernel source. Perhaps we need a ppdev.tcz extension.