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From: "Paul T. Root" <proot@horton.iaces.com>
Message-Id: <199705152154.QAA08063@horton.iaces.com>
Subject: Re: Slow printer behavior
To: helbig@MX.BA-Stuttgart.De (Wolfgang Helbig)
Date: Thu, 15 May 1997 16:54:49 -0500 (CDT)
Cc: crtb@capecod.net, questions@FreeBSD.ORG
In-Reply-To: <199705152133.XAA00461@helbig.informatik.ba-stuttgart.de> from Wolfgang Helbig at "May 15, 97 11:33:25 pm"
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In a previous message, Wolfgang Helbig said:
> > Running FreeBSD 2.2.0-RELEASE.
> > Problem:  Printer (a Canon BJ200 Bubble-Jet) runs at normal speed about
> > half the time, but often excruciatingly slowly.  Sometimes it will print an
> > entire page, pausing about ten seconds between passes across the paper.
> > And other times it goes at normal speed.  I use apsfilter and
> > ghostscript 3.51 for most printing.
> > 
> > This behavior just began about a month ago.  I think of a bad connection
> > somewhere, with an ACK signal failing or something like that.  Or is it
> > possible that the printer port interrupt can get turned off, and the
> > /dev/lpt driver fails to restore it?
> > 
> > Wonder if anyone else has seen this happen.  I'd be grateful to find out!
> 
> Nope, I'm using the same printer, apsfilter, ghostscript 2.6.2 and -current
> and never seen anything like that.

You might try setting your lpt port to polling instead of interrupt, and see
if that does anything. Polling should be more efficient that interrupts 
anyway. I have a BJC-4100 on mine. 

You can put it in your config with:
device          lpt0    at isa? port "IO_LPT1" tty 

Or set it via the command line with:

lptcontrol -p -u 0

Paul.


-- 
Never attribute to malice that which is adequately explained by stupidity.
                                        --Grant R. Gainey