To learn more about printing on Red Hat Linux, go to the GNU/Linux Printing site at http://www.linuxprinting.org , whichcontains a large amount information about printing in Linux. Also, the following documentation on your Red Hat Linux machine can be very helpful:
man printcap — The manual page for the /etc/printcap printer configuration file.
map lpr — The manual page for the lpr command, which allows you to print files from the command line.
man lpd— The manual page for the LPRng printer daemon (lpd).
man lprm — The manual page for the command line utility that allows you to remove print jobs from the LPRng spool queue.
man mpage — The manual page for the command line utility that allows you to print multiple pages on one sheet of paper.