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<th colspan="3" align="center">LPRng Reference Manual: 24
Sep 2004 (For LPRng-3.8.28)</th>
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<h1 class="SECT1"><a name="AEN10889">20.4. Job disappears and
is never printed, but lpr works</a></h1>
<p>This is a rather disconcerting problem, and usually occurs
when sending jobs to either a network printer or a
nonconforming <a href="rfc1179.htm">RFC1179</a> print
spooler. For details about <b class="APPLICATION">LPRng</b>
and RFC1179, see <a href="rfc1179ref.htm">RFC1179 and <b
class="APPLICATION">LPRng</b></a>, but here is a quick
explanation.</p>
<p>An <b class="APPLICATION">lpd</b> job consists of a
control file, which contains information about the job, and
one or more data files. RFC1179 is silent on the order that
jobs are sent; however some implementations REQUIRE that the
data files be sent first, followed by the control file.</p>
<p>SOLUTION:</p>
<p>Set the <var class="LITERAL">send_data_first</var> flag in
the printcap for the particular printer, or in the <tt class=
"FILENAME">lpd.conf</tt> configuration file. This is:</p>
<div class="INFORMALEXAMPLE">
<a name="AEN10902"></a>
<pre class="SCREEN">
:send_data_first: (printcap)
send_data_first (lpd.conf)
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<p>Note that some printers/servers INSIST on the control file
first; You can clear the flag using <var class=
"LITERAL">send_job_first@</var> if you need to.</p>
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