hi,

similar problems can be tracked down extrem easily by using the powerful
lpq -L fature:

 Filter_status: setting up printer at 09:19:40.245
 Filter_status: getting sync using 'pjl echo' at 09:19:40.245
 Filter_status: sync done at 09:19:42.079
 Filter_status: pagecounter 32642 after 1 attempts at 09:19:42.080
 Filter_status: pagecounter 32642 at 09:19:42.080
 Filter_status: sending job file at 09:19:42.081
 Filter_status: starting transfer at 09:19:42.081
 Filter_status: file program = '/usr/bin/file -' at 09:19:42.081
 Filter_status: started FILE_UTIL- 'file' at 09:19:42.085
 Filter_status: file information = 'bennet_yee's_"face"_format' at
09:19:42.155
 Filter_status: initial job type 'bennet_yee's_"face"_format' at
09:19:42.155
 Filter_status: decoded job type 'bennet_yee's_"face"_format' at
09:19:42.156
 Filter_status: cannot process language 'bennet_yee's_"face"_format' at
09:19:42.156
 Filter_status: sent job file at 09:19:42.156
 Filter_status: getting end using 'pjl job/eoj' at 09:19:42.157
 Filter_status: end of job detected at 09:19:44.429
 Filter_status: pagecounter 32642 after 1 attempts at 09:19:46.079
 Filter_status: pagecounter 32642, pages 0 at 09:19:46.080
 Filter_status: done at 09:19:46.080

if you print thse files more often, you can solve the problem by putting
a line in the global file_output_match:

*bennet_yee's_"face"_format*    ps    \%s{ps_converter}

regards
                ~christoph

P.S.: the flashing lights on the printer were probably the pagecount pjl
strings





Dave Lovelace schrieb:
> 
> One I have some hope of answering comes through ...
> We've seen this, also with files beginning "zz".  Very likely something printed
> which was not recognized as the output from the desired job.
> 
> If you try        echo '!!' | file -
> then (on our RedHat Linux box, anyway) you get:
> standard input:              Bennet Yee's "face" format
> 
> That is: the file program, which is being run to determine what kind of file
> it is so as to determine how to preprocess it, is identifying this as
> a particular type of file.  Your filter does not know how to deal with this
> file, and chokes.  In our case, there's been an otherwise blank page with
> a cryptic message to this effect, on the printer.
> 
> Of course, you may have some *other* problem, but I'd guess this is it.
> If so, you can either hack the filter to treat these files as whatever
> they're supposed to be, or (maybe) hack /etc/magic (or whatever that's linked
> to) to not mis-identify these files.  (In our case, I think we decided that
> for the moment it's not a big issue & fixed the program which was generating
> those leading "!!" things.)
> 
> Ryan Novosielski wrote:
> >
> > A question from one of my users that I have been unable to figure out.
> >
> > ---- _  _ _  _ ___  _  _  _
> > |Y#| |  | |\/| |  \ |\ |  |  | Ryan Novosielski - Jr. UNIX Systems Admin
> > |$&| |__| |  | |__/ | \| _|  | [EMAIL PROTECTED] - 973/972.0922 (2-0922)
> > \__/ Univ. of Med. and Dent. | IST/ACS - New Jersey Medical School - C630
> >
> >
> > -----Original Message-----
> > From: Philippa Hodge [mailto:[EMAIL PROTECTED]]
> > Sent: Monday, August 06, 2001 2:41 PM
> > To: Ryan Novosielski
> > Cc: Tina Brezenoff
> > Subject: LPRng: Possible limitation for Special Characters?
> >
> >
> > Ryan,
> >
> > Prem alerted me to a problem he was having printing to ljpoff.  He was
> > attempting to print files from
> > both his RWJA directory and from his laptop.  The jobs appeared to get
> > to the printer, as the
> > printer lights would flash and his identifier appeared on the LED.  Then
> > the job was no longer there.
> >
> > The files he was attempting to print had !! as the first two characters
> > in the file.
> >
> > Does LPRng or possibly our printer have any documented special character
> > limitations you know of?
> > I looked through the MAN pages and did not see anything.
> >
> > Prem removed the !! from the beginning of the files and is able to
> > print.
> >
> > Thanks,
> >
> > Philippa
> >
> >
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> 
> --
> - Dave Lovelace
>   [EMAIL PROTECTED]
>   [EMAIL PROTECTED]
> 
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