QNX Neutrino provides the spooler
utility as an alternative printing mechanism to the standard, Unix-like
lp* family.
Setting up spooler
The spooler utility manages one printer, but you can run more than one instance of it.
Printing on a USB printer
If you've attached a USB printer to your machine and started the USB stack and devu-prn as described in "USB devices" in the Connecting Hardware chapter, you need to start an instance of spooler to manage it.