Please keep in mind that fax does NOT dictate immediate printing. I does
however dictate retention of image representation, thus the name facsimile.
Too frequently fax constraints are over interpreted.
From: firstname.lastname@example.org [mailto:email@example.com]On Behalf Of Hastings,
Sent: Friday, May 30, 2003 3:06 PM
To: Gail Songer
Subject: RE: IFX> Media-Ready [and is IPPFAX a Device Protocol or an
Electronic Document Exchange Protocol?]
I suspect that the reason that the IPPFAX spec says that the Receiver MUST
support "media-ready" was because the spec says that the IPPFAX Sender
SHOULD query the "media-ready" Printer attribute.
I also think that the mind set of IPPFAX had been a single Device, so that
the fan-out to multiple devices wasn't even a consideration in being
difficult to reflect the "media-ready" value(s) correctly. For example, the
statement in the Introduction:
"The target market for an IPPFAX receiver is a midrange imaging device
that can support the minimum memory requirements that are required by the
data format PDF/is, but the image format is structured in such a way that
the Receiver is not required to include a disk or other permanent storage."
On the other hand, the definition of Receiver is:
"Receiver The Printer object that accepts IPPFAX protocol operations and
receives the Document sent by the Sender. A Receiver offers the IPPFAX
Print Service (by definition)."
So the real question is:
OK that the IPPFAX Sender not bother with querying "media-ready", but
should send the IPPFAX PDF/is document whether the media is ready or not?
If the Sender doesn't query "media-ready", then the IPPFAX protocol is an
Electronic Document Transfer Protocol, i.e., get the bits from the Sender to
the Receiver, rather than get the Quality Document Successfully Printed onto
Paper Service. The mind set of the WG does shift from one paradigm to the
other from time to time (and from place to place within the IPPFAX Protocol
As another example of this vacilation between defining a Device Protocol
versus an Electronic Document Exchange Service, is the idea that the IPPGET
notification is going to indicate whether the paper got printed OK. To me
that means we are talking about getting the document successfully
transferred to paper. Therefore, with that mind set, having the Sender
query the "media-ready" makes a lot of sense if the Sending User cares about
knowing for certain that the document was correctly imaged onto paper.
At Wednesday’s telecom, we discovered that Media-Ready was Required in
one spot and optional in another. Ira was of the opinion that it should be
Does anyone else have opinion (or remember why it was “Required”?)
Peerless Systems Corp
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