In response to Michael's three suggestions:
1. Request to add roll media as a media type. I agree with Ron's answer.
The current definition of the 'continuous' types indicates that it consists
of sheets (of a predetermined size) connected together, while roll media
requires cutting. Here are the definitions from the Media standard:
continuous Continuously connected sheets of an opaque material - which
edge is connected is not specified
continuous-long Continuously connected sheets of an opaque material
connected along the long edge
continuous-short Continuously connected sheets of an opaque material
connected along the short edge
So I think we should not introduce the notion of roll media and stick with
roll media being out of scope.
2. Request to add media finish, here is what the PWG IEEE-ISTO Production
Printing standard, 5100.3 has for "media-front-coating" and
"media-back-coating" (not media finish, but I think they are the same
3.13.10 media-front-coating (type3 keyword | name(MAX)) and
media-back-coating (type3 keyword | name(MAX))
The "media-front-coating" and "media-back-coating" member attributes
indicate what pre-process coating has been applied to the front and back of
the desired media, respectively.
Standard keyword values for "media-front-coating" and "media-back-coating"
'none' Indicated that the media MUST not have any coating.
'glossy' Indicates that the media MUST have a "glossy" coating.
'high-gloss' Indicates that the media MUST have a "high-gloss" coating.
'semi-gloss' Indicates that the media MUST have a "semi-gloss" coating.
'satin' Indicates that the media MUST have a "satin" coating.
'matte' Indicates that the media MUST have a "matte" coating.
The "media-front-coating-supported" (1setOf (type3 keyword | name(MAX))) and
"media-back-coating-supported" (1setOf (type3 keyword | name(MAX))) Printer
attribute identifies the values of these "media-front-coating" and
"media-back-coating" member attributes that the Printer supports.
JDF Spirial 6 also includes the same values and as "coatings", not "finish":
FrontCoatings ? Enumeration-Span What pre-process coating has been applied
to the front
surface of the media. Possible values are:
None: the default.
So I would not oppose adding MediaCoating to the Media standard, what do
3. Request to represent minimum and maximum size for use with the custom
mechanism. Interestingly, UPnP Print template has a way to represent the
minimum and maximum sizes that a Printer supports using the custom syntax.
Translating the UPnP syntax to our ABNF would become:
[prefix] "custom-max" "." short-dim "-" long-dim
[prefix] "custom-min" "." short-dim "-" long-dim
Such an addition would be necessary, if the UPnP Printer template is to
reference our PWG standard for its MediaType and MediaSize syntaxes and
standardized values, instead of defining its own syntax.
So I'd be in favor of adding the minimum and maximum syntax for use with
custom media sizes.
From: Bergman, Ron [mailto:Ron.Bergman@Hitachi-hkis.com]
Sent: Tuesday, March 27, 2001 08:36
To: 'Michael Sweet'; Hastings, Tom N
Cc: ipp (E-mail); UPDF WG (E-mail); 'RonBergman@aol.com'; Norbert Schade
Subject: RE: UPD> Re: IPP> MED - Media Standardized Names Draft D0.4
In response to your comments:
1. Roll paper was purposely omitted from the document. Refer to
the second paragraph of section 1.1, Scope. This decision was
made for two reasons; 1) it adds another level of complexity to
the document and 2) there appears to be very little interest by
PWG participants in roll feed devices.
2. Since we have already "bit the bullet" and added Media Type
and Color, finish is a likely next step. Since my time is
currently limited and knowledge of this subject is minimal,
a volunteer is needed to provide the necessary input. So,
when can you have a draft? ;-)
3. Maximum and minimum values define a characteristic of the
printer and I believe this is way beyond the scope of this
document. The Printer MIB currently provides an excellent
source for this information.
Hitachi Koki Imaging Solutions
From: Michael Sweet [mailto:firstname.lastname@example.org]
Sent: Friday, March 23, 2001 5:49 AM
To: Hastings, Tom N
Cc: ipp (E-mail); UPDF WG (E-mail)
Subject: UPD> Re: IPP> MED - Media Standardized Names Draft D0.4
"Hastings, Tom N" wrote:
> So Ron and I have agreed to add the Media Type Names to the Media
> Size Name standard, if that was the consensus at the meeting. We
> need to work on the conformance language some more.
OK, some general comments:
1. For the media type names, is "continuous" considered to be
the same as "roll"? I ask only because roll paper does not
have the perforations that continuous forms have.
I suggest adding a "roll" media type or ammending the
description for "continuous" to include roll type media
with no perforations.
2. The current media types don't address variations of particular
media types; these variations are generally the "finish" of
the media (glossy, matte, etc.), so I would recommend adding
standard "media finish" values that can be used to identify
an exact media type, rather than overloading the current
media types with additional name-finish varients.
3. There is presently no way to define the min & max custom
media size; this is absolutely required for this to work
in the real world (otherwise how do you know what media
sizes are valid?), e.g.:
"custom-size-minimum." short-dim "-" long-dim
"custom-size-maximum." short-dim "-" long-dim
This would essentially research the "size-minimum" and
"size-maximum" names, but allow a device to communicate
that any size from the minimum to the maximum dimensions
is supported. If these sizes are not available then the
client should only select media sizes from the provided
-- ______________________________________________________________________ Michael Sweet, Easy Software Products email@example.com Printing Software for UNIX http://www.easysw.com
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