Lpr Out of Memory with Interleaf

[SADANAND LAKKA]

I use a documentation and graphics software called Interleaf on Sun 3/60.
It has menu driven interface. While executing the print command (output to
the postscript laser printer), quite often I get an error message "
/usr/ucb/lpr : out of memory " The laser printer is accessed through the
ethernet.

Can you please explain to me why this error occurs randomly.  There are no
other users on the net.

Thanks in advance.

My email: l2768!moncol!rutgers
          l2768!moncol!petsd!princeton