We have been developing a point of sale program over the last 25 years and weused to run it on Zenix then Unix and now linux
what we are descovering is that we always printed to the physical device being ( /dev/lp0 for parallel printer or /dev/ttyS0 for serial printer) which are dot matrix printers NOW we are getting where there are lazer printers that are not epson compatable and have there own printing language like the new canon lazer black and white,
What i would like to find out is how do we link from acu-cobol to cups interface and pass the printinfo to cups which prints to the printer no problem BUT if i do a directory dump to /dev/usb/lp0 it does not work
and in windows how to call up the windows printers and link to that .
thanks in advance