PWG> Media Surface characteristics

PWG> Media Surface characteristics

PWG> Media Surface characteristics

Bergman, Ron Ron.Bergman at rpsa.ricoh.com
Mon Mar 28 19:48:36 EST 2005


Harry,
 
This appears to be a reasonable suggestion.  The only potential "catch" would be if the
presence of a coating, rather than the surface finish, affects the print characteristics.
(I am not aware of a situation that falls into this category, but I also don't have much
experience with technologies other than laser.)
 
If the coating does matter, then the MediaCoatingWKV is deficient in providing that
information, since I suspect there is more information necessary than is currently
defined to define the coating characteristics.
 
    Ron

-----Original Message-----
From: owner-pwg at pwg.org [mailto:owner-pwg at pwg.org]On Behalf Of Harry Lewis
Sent: Monday, March 28, 2005 2:09 PM
To: pwg at pwg.org
Cc: ipp at pwg.org
Subject: PWG> Media Surface characteristics



In the IPP Production Print Attributes - Set 1, ftp://ftp.pwg.org/pub/pwg/candidates/cs-ippprodprint10-20010212-5100.3.pdf 
Page 47, 3.13.10 we describe Job Template attributes which augment the IPP media definitions including "media-front-coating" and "media-back-coating". 
These are likewise reflected in the PWG Semantic Model v1.0 MediaWellKnownValues.xsd as "MediaCoatingWKV". 
        </xsd:simpleType> 
        <xsd:simpleType name="MediaCoatingWKV"> 
                <xsd:restriction base="xsd:NMTOKEN"> 
                        <xsd:maxLength value="255"/> 
                        <xsd:enumeration value="none"/> 
                        <xsd:enumeration value="glossy"/> 
                        <xsd:enumeration value="high-gloss"/> 
                        <xsd:enumeration value="semi-gloss"/> 
                        <xsd:enumeration value="satin"/> 
                        <xsd:enumeration value="matte"/> 
                </xsd:restriction> 
        </xsd:simpleType> 

Three questions to be considered 

1. In use, it seems what we really wanted to convey is "surface characteristics". By labeling the element "coating" and including the value "none", there is an implication that coating is necessary and it leaves NO WAY to represent surface characteristics of a NON-COATED media. For example, in paper, it is possible to achieve a high gloss via high pressure calendaring (no coating... but results in shiny surface". IS IT ACCEPTED PROPER INTERPRETATION TO USE MediaCoatingWKV to mean media surface characteristics, in general, coated or not? 
2. If the answer to 1 is YES, then what is the semantic of the value NONE? 
3. What is the accurate and preferred way to reference this "dictionary" in another document. Is it more proper to reference 5100.3-2001(The IPP extension which originally documented these values) or 5105.1 the Semantic Model, or point directly to MediaWellKnownValues.xsd? I assume SM is preferred.   

Sorry for the double post. I think this is broader than just an IPP question but the root document is an IPP extension. 
---------------------------------------------- 
Harry Lewis 
IBM STSM
Chairman - IEEE-ISTO Printer Working Group
http://www.pwg.org
IBM Printing Systems 
http://www.ibm.com/printers
303-924-5337
---------------------------------------------- 

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