UPD> Re: IPP> MED - Media Standardized Names Draft D0.4 down- loaded

UPD> Re: IPP> MED - Media Standardized Names Draft D0.4 down- loaded

Hastings, Tom N hastings at cp10.es.xerox.com
Wed Mar 28 21:50:57 EST 2001


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
thing):

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"
are:

'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.
Glossy
HighGloss
Matte
Satin
Semigloss

So I would not oppose adding MediaCoating to the Media standard, what do
others think?


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:

   custom-media-size-max-self-describing-name = 
         [prefix] "custom-max" "." short-dim "-" long-dim

   custom-media-size-min-self-describing-name = 
         [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.

Tom

-----Original Message-----
From: Bergman, Ron [mailto:Ron.Bergman at 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 at aol.com'; Norbert Schade
(E-mail)
Subject: RE: UPD> Re: IPP> MED - Media Standardized Names Draft D0.4
down- loaded


Michael,

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.

    Ron Bergman
    Hitachi Koki Imaging Solutions


-----Original Message-----
From: Michael Sweet [mailto:mike at easysw.com]
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
down-loaded


"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
       list.

-- 
______________________________________________________________________
Michael Sweet, Easy Software Products                  mike at easysw.com
Printing Software for UNIX                       http://www.easysw.com



More information about the Ipp mailing list