printer job date change
malcolm.kay at internode.on.net
Wed Dec 31 16:48:22 PST 2003
On Thu, 1 Jan 2004 06:19, Garance A Drosihn wrote:
> At 8:34 PM -0600 12/30/03, pixfbsd wrote:
> >In the dfA009exampleFile in /var/spool/output/lpd/hp2200
> >there is the value @PJL SET DATE=31-12-2003. I want to ...
> >change that value to the year 2000.
> >Why? If you recall HP has date information in their
> >printer cartridges, that after a certain date the cartridge
> >becomes "expired".
> Huh. I didn't realize they did that via PJL commands.
> Luckily we tend to send postscript, and I don't think we've
> ever hit one of those expiration messages.
PJL and postscript can co-exist. It is still possible for some
filter -- most likely from HP -- to add PJL instructions
informing the printer of the current date.
Of course if you send generic postscript as generated by a unix
application direct without a filter then the PJL can't get added.
But on the other hand some features of some printers can only
be accessed via PJL.
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