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From: witr@rwwa.COM (Robert Withrow)
Newsgroups: comp.unix.sysv386
Subject: SVR4: postio filter and /dev/lp---Does it work?
Message-ID: <1991Apr19.210815.8136@rwwa.COM>
Date: 19 Apr 91 21:08:15 GMT
Organization: R.W. Withrow Associates
Lines: 37

Has anyone gotten the SVR4 postscript lp stuff to work with parallel
printers (.e.g. /dev/lp)?  Or is this just another SVR4 bug?

On my system ``postio'' seems to hang causing ``printer fault'' mail
saying something about ``printer setup''..???  I've read the printed
FM, and get no help there.

[[[Also, I know by using strings that postio has 13 options, but I
can't find any documentation.. Does anyone have a man page for postio?]]]

What I have tried:

 1) ``cat foo.ps >/dev/lp'' --- works fine.

 2) ``cat foo.simple | /usr/lib/lp/postscript/postprint >/dev/lp'' ---
works fine.

 3) Modifying interface ``standard'' to delete the
``/usr/lib/lp/postscript/postio part'' of the pipeline used for the
banner.  Now when I do ``lp -T simple foo.simple'' I get a banner, but
then postio hangs when it tries to print the rest of the job.

 4) 3 + modifying filter ``postio'' and changing the command to
/usr/bin/cat.  Now, I get a good banner, but the next page (supposted
to be what I got in 1 and 2) is blank.  After that (until I reset
printer) I get blank pages.

 5) 3 + deleting filter ``download'' and modifying filter ``postio''
and changing Command: to be /usr/bin/cat and Input types: to be
postscript.  I get the same results as in 4.  This realy stumps me
cause I think this should produce about the same results as 2.

Any ideas?
-- 
---
 Robert Withrow, R.W. Withrow Associates, Swampscott MA 01907 USA
 Tel: +1 617 598 4480, Fax: +1 617 598 4430, Net: witr@rwwa.COM