[IPP] Microsoft has reviewed the IPP Transaction-Based Printing Extensions specification and has comments

[IPP] Microsoft has reviewed the IPP Transaction-Based Printing Extensions specification and has comments

[IPP] Microsoft has reviewed the IPP Transaction-Based Printing Extensions specification and has comments

Michael Sweet msweet at apple.com
Fri Sep 6 17:04:32 UTC 2013


Justin,

Fair enough, we do have use cases but will highlight for each of the attributes.


On Sep 6, 2013, at 12:53 PM, Justin Hutchings <justhu at microsoft.com> wrote:

> Thanks for your quick response, Mike. It might be worthwhile to articulate the rationale as to why these are required in the spec. I didn’t pick up on all that during my read through.
>  
> Thanks!
> Justin
>  
> From: Michael Sweet [mailto:msweet at apple.com] 
> Sent: Friday, September 6, 2013 7:00 AM
> To: Justin Hutchings
> Cc: ipp at pwg.org; Ira McDonald; Paul Tykodi
> Subject: Re: [IPP] Microsoft has reviewed the IPP Transaction-Based Printing Extensions specification and has comments
>  
> Justin,
>  
> Thank you for your feedback!  Quick comments inline...
>  
> On Sep 5, 2013, at 6:06 PM, Justin Hutchings <justhu at microsoft.com> wrote:
> -          OpenXPS has a MIME type of application/oxps, not application/OpenXPS (http://www.iana.org/assignments/media-types/application/oxps)
>  
> Oops, will fix.
> 
> 
> -          This spec appears to have a bunch of content which is completely unrelated to the transaction based printing. Why are we throwing these into what would otherwise be a very straightforward, to-the-point spec?
>  
> These have particular application to commercial print services and service discovery.
>  
> o   Print-scaling-supported
> o   Print-scaling-default
>  
> These provide control over the final imposition/scaling of the document data on the output media - important particularly for commercial print services.
> 
> 
> o   Printer-dns-sd-name
>  
> This is used for service discovery; we need to have a way to configure the service name.
> 
> 
> o   Printer-kind
>  
> This is used for service selection/filtering - again, if you are looking for a print service that supports the kind of document you are printing, you need this information.
>  
> (this is also part of the DNS-SD TXT record, but DNS-SD is not the only way to do discovery)
> 
> 
> o   Jpeg-*
> o   Pdf-*
>  
> These are used to inform the Client of limits for direct photo and PDF printing - having dealt with a lot of commercial print shops over the years, it is VERY important for the Client to be able to know whether they support a particular flavor of PDF or have limits in the maximum size/dimensions of print files.
>  
> _________________________________________________________
> Michael Sweet, Senior Printing System Engineer, PWG Chair
>  
> _______________________________________________
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> ipp at pwg.org
> https://www.pwg.org/mailman/listinfo/ipp

_________________________________________________________
Michael Sweet, Senior Printing System Engineer, PWG Chair

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