[cups] Acquire paper and tray info

[Paul Mitchell]

On Fri, 9 Jan 2015, Johannes Meixner wrote:

> Such a "System V style Interface Script" is usually a script that
> you must make yourself that implements the "minor adjustments"
> as you need them in your particular case.
> For the basic idea and some simple example have a look at
> https://en.opensuse.org/SDB:Using_Your_Own_Filters_to_Print_with_CUPS

Hello Johannes,
   I spent the weekend running through Micahaels CUPS book (albeit, a 
somewhat ancient version) particularly the IPP, programming and CUPS 
functions sections.

After turning on "debug" and sending an IPP file through it, I discovered 
that "request file type is application/postscript." So my question is, if 
that becomes the default type which is queued on the printer (which is 
defined as a "raw" device) is any psto* filter employed?

I see in the illustrations the ability to switch from PostScript to PCL 
(via PJL) so I assume I need to create a similar situation as this, but 
merely add the PJL comand I'm interested in inserting.  However, I guess 
I'm still uncertain where I might place that filter when the printer 
dosn't address any PPD filesand none seem called out in the log.

Thanks,

Paul Mitchell
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         Paul Mitchell
 	ITS Systems
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