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Date:      Sat, 5 Mar 2011 14:40:56 -0700 (MST)
From:      Warren Block <>
To:        Rem P Roberti <>
Cc:        FreeBSD <>
Subject:   Re: Printer Offline
Message-ID:  <>
In-Reply-To: <>
References:  <>

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On Sat, 5 Mar 2011, Rem P Roberti wrote:

> I have a printer, which was installed and is working under CUPS, that seems
> to go offline of its own accord.  And when that happens I have found no
> other option than to reboot.  I know, I should never have to
> reboot, but that's the only thing that seems to work.  When I check out
> localhost:631 everything looks good, and all the uncompleted jobs are
> there patiently waiting to get processed.  But, as I said, the jobs
> can't get done without a reboot.  When I do reboot, just before the
> login prompt shows up, the printer jumps into action and all of the
> uncompleted jobs get processed.  I should also point out that
> immediately after reboot the printer works flawlessly, printing on
> demand.  It is only after being idle for a while that it just seems to
> go offline, without any warning.

The model of printer and how it is connected are likely important.

First guess would be power-save shuts down the printer and it's not 
being woken up again.  CUPS has an lpstat program which may be able to 
tell you something useful about the state of the printer.

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