Bruce, if your printer is on USB, you should be able to find its device file via
sudo usb_printerid /dev/usb/lp0 sudo usb_printerid /dev/usb/lp1 ...
and then print unfiltered with a commands like
sudo -s cat file.ps > /dev/usb/lp0 exit
Bruce, if your printer is on USB, you should be able to find its device file via
sudo usb_printerid /dev/usb/lp0
sudo usb_printerid /dev/usb/lp1
...
and then print unfiltered with a commands like
sudo -s
cat file.ps > /dev/usb/lp0
exit