Date: Fri, 22 Feb 2002 18:08:30 -0800 (PST)
From: Patrick Powell <[EMAIL PROTECTED]>
> > From [EMAIL PROTECTED] Mon Jan 21 18:38:38 2002
> > To: [EMAIL PROTECTED]
> > Subject: Re: LPRng: HP-4100 Pagecount problem. A possible solution.
> > Date: Tue, 22 Jan 2002 12:42:16 +1100
> > From: "C. L. McAvaney" <[EMAIL PROTECTED]>
> >
> >
> > Date: Tue, 22 Jan 2002 01:40:23 +0100
> > From: Fernando Blanco Marcilla <[EMAIL PROTECTED]>
> >
> > G'day all,
> >
> > This posting got me thinking....
> > My understanding of the ifhp filtering process for pagecounting is:
> > - ask the printer for a PAGECOUNT
> > - send the print job
> > - tell the printer to turn on the USTATUS PJL command.
> > - ask the printer for a PAGECOUNT
> > - keep listening to the printer connection until a PAGECOUNT is returned
> >
> > Reading the PJL specification, I gathered that you could send the followi
>ng
> > sequence to achieve the same.
> >
> > <ESC>%-12345X@PJL
> > @PJL ECHO attempting PAGECOUNT
> > @PJL INFO PAGECOUNT
> > @PJL ENTER LANGUAGE = PCL
> > ...
> > @PJL EOJ
> > @PJL ECHO attempting PAGECOUNT
> > @PJL INFO PAGECOUNT
> > <ESC>%-12345X
> >
> > The ECHO command is suppose to synchronise the output given from the prin
>ter.
> > That way, you would only need to get the start and end pagecounts from th
>e
> > open connection and they would almost always be correct.
> > or am I being gullible in thinking that the printers follow PJL strictly?
> >
> > Just a thought...has anybody tried anything like this before?
> >
> > Christopher
>
> Yes. However, you must get the pagecount AFTER the job has
> finished. The way that you have it now you will get the
> CURRENT pagecount... which may be the same as the starting
> pagecount if the printer is warming up.
>
> I kid you not.
>
> Isn't this wonderful?
So does that mean that the ECHO doesn't synchronise as it is documented
that is should do?
Christopher
,,,
(. .)
/-----.oOO--(_)--OOo.-------------------------------------------------\
| Christopher McAvaney [EMAIL PROTECTED] |
| PhD Candidate [EMAIL PROTECTED] |
| [EMAIL PROTECTED] |
| phone: +61+3+52272960 [EMAIL PROTECTED] |
| fax: +61+3+52272028 http://www.cm.deakin.edu.au/~chrismc |
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