using lpr with a second printer

[Adam Myrow]

Lpr doesn't use device files in the normal sense.  It uses a file called
/etc/printcap.  The file defines each printer and what it can do.  Did you
use some menu or something to set up your first printer?  The "-P" option
merely selects from pre-defined printers.  I've never edited the printcap
directly since it's one of the few things that Slackware can set up for
you, although you have to manually run a command to do it.  Basically, the
printcap file says where to store spooled jobs for each printer, what
device it should print to, and what filters to use.  The Slackware system
uses a set of scripts called Apsfilter which turns everything you print
into Postscript and stuffs it into Ghostscript to figure out.  It also
supports a few other options.  In particular, you can set a printer up and
tell the filter to send everything directly to the printer without any
interpretation.  This would seem ideal for an Embosser.  See if your
printer configuration tool lets you specify something along those lines
and add that as a new printer.  Tell it to print to /dev/lp1.