[K12OSN] HP Laserjet Printer w/embedded jetdirect print server

[Jim McQuillan]

Liam,

there still could be some heavy processing on the server.

The issue is, you can feed cups all kinds of file formats, and it will
convert those files to postscript or pcl.

You can shoot PDF files, JPEG files, HTML, all kinds of stuff, and cups
will figure it out.

Also, most of the time if you send Postscript to cups, it will
re-process it, to make sure the postscript stream conforms to what the
printer can handle.

The only way I know of to eliminate that processing is to set the
printer up in cups as 'RAW', and make sure that you only feed postscript
to it.

There might be a way to set the 'nice' priority for cups to not drag
down the server so badly, at the expense of taking longer to get print
jobs out.

In my experience tho, i've never had a problem with the processing that
takes place for print jobs.

Jim McQuillan
jam at Ltsp.org



On Mon, 11 Jul 2005, Liam Marshall wrote:

> The school just bought an HP LaserJet 2430dtn printer for the lab
> I was wondering the best way to set it up with K12LTSP.  It comes with an
> embedded print server via JetDirect and 64 MB ram.  I configured it, I think.
> Plugged it into the network with network cable.  my test server (4.4.0 beta)
> I established a connection to the printer using the ip address I set up on the
> printer
>
> It prints.  If I set it up to share/print, all the work is going through the
> server, right?  Last year, when huge print jobs were sent to a printer
> attached directly to the server via parallel port, the printing used up major
> resources according to TOP.
>
> I was hoping that if the server conncects to the printer via TCP/IP that jobs
> would basically pass through the server and most of the processing would be
> done on the printer itself.  Would that reduce the load I saw with the old
> printer directly connected via parallel to the server?
>
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