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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="AEN5860" id="AEN5860">12.9. Parallel
Printer</a></h1>
<p>The parallel printer printcap is very simple.</p>
<div class="INFORMALEXAMPLE">
<a name="AEN5863" id="AEN5863"></a>
<pre class="SCREEN">
# parallel printer
lp:
:lp=/dev/lpr
</pre>
</div>
<ol type="1">
<li>
<p>The <tt class="LITERAL">lp=/dev/lpr</tt> specifies that
<b class="APPLICATION">lpd</b> should open the device for
APPEND and simply transfer job files to it.</p>
</li>
<li>
<p>The <tt class="LITERAL">sh</tt> and <tt class=
"LITERAL">sf</tt> will prevent <b class=
"APPLICATION">lpd</b> from trying to generate banner pages
or put form feeds between jobs.</p>
</li>
</ol>
<p>If you discover that UNIX print jobs result in a
<span class="emphasis"><i class="EMPHASIS">staircase</i></span>
appearance, then you need to force your printer to do
<acronym class="ACRONYM">LF</acronym> (linefeed) to <tt class=
"FILENAME">CR/LF</tt> (carriage return/line feed) translation,
or do the translation yourself.</p>
<div class="INFORMALEXAMPLE">
<a name="AEN5879" id="AEN5879"></a>
<pre class="SCREEN">
# Simple parallel printer
lp:
:lp=/dev/lpr
:filter=/usr/local/bin/lpf
</pre>
</div>
<p>By using the <tt class="LITERAL">if=...lpf</tt> filter, the
job will be passed through the <b class="APPLICATION">lpf</b>
filter, which will do the <acronym class="ACRONYM">LF</acronym>
to <tt class="FILENAME">CR/LF</tt> translation.</p>
<p>If you have a more complex printer that handles PostScript,
PCL, and PJL, then you will need to use the more powerful
<b class="APPLICATION">ifhp</b> filter:</p>
<div class="INFORMALEXAMPLE">
<a name="AEN5888" id="AEN5888"></a>
<pre class="SCREEN">
# Simple parallel printer
lp:
:lp=/dev/lpr
:ifhp=model=hp4,status@
:of=/usr/local/libexec/filters/ifhp
:filter=/usr/local/libexec/filters/ifhp
</pre>
</div>
<p>See <a href="ifhp.htm"><b class="APPLICATION">ifhp</b>
Filter</a> for details. This entry will specify that the
printer is an HP4, and that no status information is available.
This is usually the case with a parallel port.</p>
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