Using Transcript software on /dev/mcpp0

[Donald Mock]

Here's the problem:  I'm using Sun's Transcript software with a QMS-PS810
laser printer attached to /dev/ttyb on a Sun 4/280 running SunOS 4.0.3
with all the relevant bug fixes.  Users are complaining that it takes too
long to print 1MB postscript plot files.  So I figure, "Why not use the
ALM-2 parallel port, since the QMS-PS810 also has a parallel port?"  It
should be faster than 9600 baud, right?  After connecting the thing up, I
can do a 'cat ps_file > /dev/mcpp0' where ps_file is a postscript file.
It comes out fast and correct.  But I cannot get Transcript to do anything
with it through 'lpd'.  I've tried numerous variations on the
/etc/printcap file with no success.  Does anyone have any insight into
this problem?  Can it be done?  Is it just a matter of making the correct
printcap entry or must the Transcript package be modified as well?  Thanks
in advance.                        

EXAMPLE PRINTCAP:

lw|lp|ps|postscript|PostScript:\
        :lp=/dev/mcpp0:sd=/usr/spool/lw:\
        :lf=/usr/spool/lw/lw-log:af=/usr/adm/lw.acct:\
        :rw:mx#0:sf:sb:\
        :if=/usr/tran/sparc/lib/psif:\
        :of=/usr/tran/sparc/lib/psof:gf=/usr/tran/sparc/lib/psgf:\
        :nf=/usr/tran/sparc/lib/psnf:tf=/usr/tran/sparc/lib/pstf:\
        :rf=/usr/tran/sparc/lib/psrf:vf=/usr/tran/sparc/lib/psvf:\
        :cf=/usr/tran/sparc/lib/pscf:df=/usr/tran/sparc/lib/psdf: