[Omniprint-developer] Re: [Inkjet-list] Proposal for new IJS commands and parameters

[Mark H. <ha...@us...>]

> PrintableArea
>
> This parameter is in W.WWxH.HH format, and describes the printable
> area of the page. It is expected that the client will usually get it.
> Any attempt to set it is allowed to fail with an error, even if it's
> the same value as the get. The value may change dynamically depending
> on PaperSize and other parameters.

IPP, UPDF, and UPnP are standardizing on a set of form names.  We should
leverage their work and be compatible with them.  They look like the
following:
   na_letter_8.5x11in
   na_legal_8.5x14in
   iso_a4_210x297mm

> PrintableTopLeft
>
> This parameter is in W.WWxH.HH, and contains the left and top margins
> of the printable area with respect to the media. It is the companion
> to PrintableArea (I'm considering having a single parameter that
> ASCII encodes the four floats).
>
> TopLeft
>
> This parameter, in W.WWxH.HH is intended to be set, and controls the
> placement of the raster image on the page. The corresponding size of
> the raster image area can be inferred from the Width, Height, and Dpi
> parameters.

The unprintable area should be informational only.  It could be used to
help match a form from another printer onto the current printer.  That
information should come from the server to the client and be passed
around in the job.

Mark

Take a look at the Linux Omni printer driver at
http://www.ibm.com/linux/ltc/projects/omni/