Internet Printing Protocol (ipp)

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Michael Sweet | 2 Sep 2011 18:26

[Pwg-Announce] REMINDER: PWG October 2011 Face-to-Face Meeting in Cupertino, CA

[THIS IS A REMINDER, IF YOU HAVE ALREADY FILLED OUT THE SURVEY, THANK YOU AND PLEASE IGNORE...]

All,

The October 2011 PWG face-to-face meeting page is now available. The agenda and venue information can be found at:

http://www.pwg.org/chair/meeting-info/october_2011_cupertino.html

This page will be updated with document links as the material becomes available.

Please visit the October 2011 survey page PRIOR TO SEPTEMBER 23, 2011 and indicate whether you plan to participate in person or call in:

http://www.surveymonkey.com/s/9X7T32F

For those not able to attend in person, the usual telephone bridge number will be provided. The details of the conference call are:

Call-in toll-free number (US/Canada): +1 866 469-3239
Call-in toll number (US/Canada): +1 650 429-3300
Call-in toll number (US/Canada): +1 408 856-9570

Attendee access code: Please request from the PWG Chair (msweet <at> apple.com) if you need it.

________________________________________________________________________

Michael Sweet, Senior Printing System Engineer, PWG Chair

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Ira McDonald | 10 Sep 2011 00:02

Re: More fixes in IANA IPP Registry (26 August 2011)

Hi,

Amanda Baber has applied all of these latest updates to the
IPP Registry.

So every PWG spec except for Media Standardized Names
(now being updated by Mike Sweet) has been added to the
IANA IPP Registry.

Cheers,
- Ira

Ira McDonald (Musician / Software Architect)
Chair - Linux Foundation Open Printing WG
Co-Chair - IEEE-ISTO PWG IPP WG
Chair - TCG Embedded Systems Hardcopy SWG
IETF Designated Expert - IPP & Printer MIB
Blue Roof Music/High North Inc
http://sites.google.com/site/blueroofmusic
http://sites.google.com/site/highnorthinc
mailto:blueroofmusic <at> gmail.com
Christmas through April:
579 Park Place Saline, MI 48176
734-944-0094
May to Christmas:
PO Box 221 Grand Marais, MI 49839
906-494-2434

On Fri, Aug 26, 2011 at 5:47 PM, Ira McDonald <blueroofmusic <at> gmail.com> wrote:

Hi,

I've just submitted more IANA IPP Registry fixes discovered recently
by Mike Sweet and Harry Lewis (see below).

I'll keep people posted on IANA progress.

Cheers,
- Ira

Ira McDonald (Musician / Software Architect)
Chair - Linux Foundation Open Printing WG
Co-Chair - IEEE-ISTO PWG IPP WG
Chair - TCG Embedded Systems Hardcopy SWG
IETF Designated Expert - IPP & Printer MIB
Blue Roof Music/High North Inc
http://sites.google.com/site/blueroofmusic
http://sites.google.com/site/highnorthinc
mailto:blueroofmusic <at> gmail.com
Christmas through April:
579 Park Place Saline, MI 48176
734-944-0094
May to Christmas:
PO Box 221 Grand Marais, MI 49839
906-494-2434

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Attachment (IANA-484235-more-registry-fixes-20110907.pdf): application/pdf, 28 KiB

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Petrie, Glen | 12 Sep 2011 17:43

Question on PWG Raster

Michael,

I finally got back to updating my routines for PWG Raster and had a question.

For ColorSpaceEnum

Can you confirm that the value 1 == Device RGB was removed for the new version. Can you remind me why?

Glen

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Petrie, Glen | 12 Sep 2011 18:06

RE: Question on PWG Raster

Second question:

For “CutMedia”, the specification state to use the “WhenEnum”. All of the WhenEnum are “after” events. I remember a discussion of “cutting a page before”. So, are there any other WhenEnum values that should be added.

Glen

From: ipp-bounces <at> pwg.org [mailto:ipp-bounces <at> pwg.org] On Behalf Of Petrie, Glen
Sent: Monday, September 12, 2011 8:44 AM
To: Michael Sweet; ipp <at> pwg.org
Subject: [IPP] Question on PWG Raster

Michael,

I finally got back to updating my routines for PWG Raster and had a question.

For ColorSpaceEnum

Can you confirm that the value 1 == Device RGB was removed for the new version. Can you remind me why?

Glen

--
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dangerous content by MailScanner, and is
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Petrie, Glen | 12 Sep 2011 19:02

RE:RE: Question on PWG Raster

One more question.

There are two “box sizes”; the Bounding Box and the Image Box. There is section for the Image Box but not the Bounding Box. Can you explain the difference between the two boxes.

Glen

From: ipp-bounces <at> pwg.org [mailto:ipp-bounces <at> pwg.org] On Behalf Of Petrie, Glen
Sent: Monday, September 12, 2011 9:07 AM
To: Michael Sweet; ipp <at> pwg.org
Subject: RE: [IPP] Question on PWG Raster

Second question:

For “CutMedia”, the specification state to use the “WhenEnum”. All of the WhenEnum are “after” events. I remember a discussion of “cutting a page before”. So, are there any other WhenEnum values that should be added.

Glen

From: ipp-bounces <at> pwg.org [mailto:ipp-bounces <at> pwg.org] On Behalf Of Petrie, Glen
Sent: Monday, September 12, 2011 8:44 AM
To: Michael Sweet; ipp <at> pwg.org
Subject: [IPP] Question on PWG Raster

Michael,

I finally got back to updating my routines for PWG Raster and had a question.

For ColorSpaceEnum

Can you confirm that the value 1 == Device RGB was removed for the new version. Can you remind me why?

Glen

--
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dangerous content by MailScanner, and is
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Petrie, Glen | 12 Sep 2011 19:13

RE:RE: RE: Question on PWG Raster

Another,

I believe the sGrayPrimary is used to specify the base color for monochrome printing where the base color is black. The specification states that the sGrayPrimary replaces the white value. I believe the sGrayPrimary replaces the Black value; that is monochrome printing goes from a color-to-white versus a color-to-black.

What is your understanding? Or have I misunderstood the meaning and use of this value?

glen

From: ipp-bounces <at> pwg.org [mailto:ipp-bounces <at> pwg.org] On Behalf Of Petrie, Glen
Sent: Monday, September 12, 2011 10:02 AM
To: Michael Sweet; ipp <at> pwg.org
Subject: RE:RE: [IPP] Question on PWG Raster

One more question.

There are two “box sizes”; the Bounding Box and the Image Box. There is section for the Image Box but not the Bounding Box. Can you explain the difference between the two boxes.

Glen

From: ipp-bounces <at> pwg.org [mailto:ipp-bounces <at> pwg.org] On Behalf Of Petrie, Glen
Sent: Monday, September 12, 2011 9:07 AM
To: Michael Sweet; ipp <at> pwg.org
Subject: RE: [IPP] Question on PWG Raster

Second question:

For “CutMedia”, the specification state to use the “WhenEnum”. All of the WhenEnum are “after” events. I remember a discussion of “cutting a page before”. So, are there any other WhenEnum values that should be added.

Glen

From: ipp-bounces <at> pwg.org [mailto:ipp-bounces <at> pwg.org] On Behalf Of Petrie, Glen
Sent: Monday, September 12, 2011 8:44 AM
To: Michael Sweet; ipp <at> pwg.org
Subject: [IPP] Question on PWG Raster

Michael,

I finally got back to updating my routines for PWG Raster and had a question.

For ColorSpaceEnum

Can you confirm that the value 1 == Device RGB was removed for the new version. Can you remind me why?

Glen

--
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dangerous content by MailScanner, and is
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Petrie, Glen | 12 Sep 2011 19:23

RE:RE: RE: RE: Question on PWG Raster

What are the possible values of “[color]RenderingIntent”?

glen

From: ipp-bounces <at> pwg.org [mailto:ipp-bounces <at> pwg.org] On Behalf Of Petrie, Glen
Sent: Monday, September 12, 2011 10:13 AM
To: Michael Sweet; ipp <at> pwg.org
Subject: RE:RE: RE: [IPP] Question on PWG Raster

Another,

I believe the sGrayPrimary is used to specify the base color for monochrome printing where the base color is black. The specification states that the sGrayPrimary replaces the white value. I believe the sGrayPrimary replaces the Black value; that is monochrome printing goes from a color-to-white versus a color-to-black.

What is your understanding? Or have I misunderstood the meaning and use of this value?

glen

From: ipp-bounces <at> pwg.org [mailto:ipp-bounces <at> pwg.org] On Behalf Of Petrie, Glen
Sent: Monday, September 12, 2011 10:02 AM
To: Michael Sweet; ipp <at> pwg.org
Subject: RE:RE: [IPP] Question on PWG Raster

One more question.

There are two “box sizes”; the Bounding Box and the Image Box. There is section for the Image Box but not the Bounding Box. Can you explain the difference between the two boxes.

Glen

From: ipp-bounces <at> pwg.org [mailto:ipp-bounces <at> pwg.org] On Behalf Of Petrie, Glen
Sent: Monday, September 12, 2011 9:07 AM
To: Michael Sweet; ipp <at> pwg.org
Subject: RE: [IPP] Question on PWG Raster

Second question:

For “CutMedia”, the specification state to use the “WhenEnum”. All of the WhenEnum are “after” events. I remember a discussion of “cutting a page before”. So, are there any other WhenEnum values that should be added.

Glen

From: ipp-bounces <at> pwg.org [mailto:ipp-bounces <at> pwg.org] On Behalf Of Petrie, Glen
Sent: Monday, September 12, 2011 8:44 AM
To: Michael Sweet; ipp <at> pwg.org
Subject: [IPP] Question on PWG Raster

Michael,

I finally got back to updating my routines for PWG Raster and had a question.

For ColorSpaceEnum

Can you confirm that the value 1 == Device RGB was removed for the new version. Can you remind me why?

Glen

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Michael Sweet | 12 Sep 2011 21:42

Re: Question on PWG Raster

On Sep 12, 2011, at 8:43 AM, Petrie, Glen wrote:

Michael,

I finally got back to updating my routines for PWG Raster and had a question.

For ColorSpaceEnum

Can you confirm that the value 1 == Device RGB was removed for the new version. Can you remind me why?

We don't currently have device RGB in the list of PwgRasterDocumentTypeSupported keywords.

I'm happy to add this, but looking at the previous versions of the PWG Raster spec I don't see it listed... I could see this in the context of scanning and even limited use for printing (a lot of folks use cheap measuring devices and profiling software to produce RGB ICC profiles on the Mac, for example), although I hope it won't get as much use as standard RGB color spaces...

________________________________________________________________________

Michael Sweet, Senior Printing System Engineer, PWG Chair

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Michael Sweet | 12 Sep 2011 21:46

Re: Question on PWG Raster

Glen,

As far as I know, neither Adobe nor the PWG have defined "before" values for cutting media, and every vendor-specific PDL I have used similarly either says "cut after X" or "cut now", depending on the device.

The current finishing enums include a single "trim" value (the timing is undefined), and JPS3 adds some additional values to cover what is defined in PWG Raster. I don't think we need any more values defined...

On Sep 12, 2011, at 9:06 AM, Petrie, Glen wrote:

Second question:

For “CutMedia”, the specification state to use the “WhenEnum”. All of the WhenEnum are “after” events. I remember a discussion of “cutting a page before”. So, are there any other WhenEnum values that should be added.

Glen

From: ipp-bounces <at> pwg.org [mailto:ipp-bounces <at> pwg.org] On Behalf Of Petrie, Glen
Sent: Monday, September 12, 2011 8:44 AM
To: Michael Sweet; ipp <at> pwg.org
Subject: [IPP] Question on PWG Raster

Michael,

I finally got back to updating my routines for PWG Raster and had a question.

For ColorSpaceEnum

Can you confirm that the value 1 == Device RGB was removed for the new version. Can you remind me why?

Glen

--
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.

________________________________________________________________________

Michael Sweet, Senior Printing System Engineer, PWG Chair

--
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dangerous content by MailScanner, and is
believed to be clean.

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Michael Sweet | 12 Sep 2011 21:49

Re: Question on PWG Raster

ImagingBoundingBox is the old integer points bounding box. ImageBox is the bounding box in pixels.

Effectively they describe the same thing, but the ImagingBoundingBox values only support gross approximation of the useful content in the page image...

I'll add in the content for ImagingBoundingBox for the next update of the spec.

On Sep 12, 2011, at 10:02 AM, Petrie, Glen wrote:

One more question.

There are two “box sizes”; the Bounding Box and the Image Box. There is section for the Image Box but not the Bounding Box. Can you explain the difference between the two boxes.

Glen

From: ipp-bounces <at> pwg.org [mailto:ipp-bounces <at> pwg.org] On Behalf Of Petrie, Glen
Sent: Monday, September 12, 2011 9:07 AM
To: Michael Sweet; ipp <at> pwg.org
Subject: RE: [IPP] Question on PWG Raster

Second question:

For “CutMedia”, the specification state to use the “WhenEnum”. All of the WhenEnum are “after” events. I remember a discussion of “cutting a page before”. So, are there any other WhenEnum values that should be added.

Glen

From: ipp-bounces <at> pwg.org [mailto:ipp-bounces <at> pwg.org] On Behalf Of Petrie, Glen
Sent: Monday, September 12, 2011 8:44 AM
To: Michael Sweet; ipp <at> pwg.org
Subject: [IPP] Question on PWG Raster

Michael,

I finally got back to updating my routines for PWG Raster and had a question.

For ColorSpaceEnum

Can you confirm that the value 1 == Device RGB was removed for the new version. Can you remind me why?

Glen

--
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.

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This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.

________________________________________________________________________

Michael Sweet, Senior Printing System Engineer, PWG Chair

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