When I attempt to install a printer, I use the RedHat control-panel printer
control. It says it cannot detect any parallel ports (/dev/lp0, /dev/lp1,
/dev/lp2) and there might be a hardware error. I'm puzzled because I have
been able to use the p-port successfully for a zip drive. (I do the printer
configuration without the ppa module loaded.) I must be missing something.