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Date: Tue, 3 Jun 2008 16:53:07 -0600 (MDT)
From: Warren Block <wblock@wonkity.com>
To: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
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	(wonkity.com [127.0.0.1]); Tue, 03 Jun 2008 16:53:10 -0600 (MDT)
Cc: FreeBSD Questions <questions@freebsd.org>
Subject: RE: Duplex printer advice
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On Tue, 3 Jun 2008, Wojciech Puchar wrote:

>> This depends a lot on your print jobs.  Low quality machine-generated 
>> PostScript output can be slow.  PCL can also be slow.  The only way to 
>> really know is to benchmark with your print jobs.
>
> there was no case i found postscript to print faster.

But then you've said you're using a LaserJet 4, which came out in 1992 
and has a slow PS interpreter.

Some of my print jobs ran much faster in PS, because it only sent a few 
K of PS rather than a megabyte of bitmap in PCL.

>> There's also the potential overhead of the print processing systems. Just 
>> sending PS in the first place may be quicker than apsfilter or CUPS.
>
> i use lpd+my script for filtering postscript to PCL
>
>> Recent printers have fast RISC CPUs and fast PS interpreters.  I/O speed 
>> comes into it, too.  FreeBSD seems particularly slow over parallel and USB
>
> both not true, but just use lptcontrol for parallel port!

Did that, didn't help (at the time).  Not an issue with Ethernet.

-Warren Block * Rapid City, South Dakota USA