MFD> overall MFD considerations

MFD> overall MFD considerations

MFD> overall MFD considerations

Zehler, Peter Peter.Zehler at
Sun Nov 23 07:09:31 EST 2008


I have only had a chance to give a quick look at the document and definitely do not consider it a waste of time.  I found it quite useful and have linked it into the MFD page.  I would like to spend a little time at the face to face to work through the confusion around the Job Ticket lifecycle.  Having a top level document framing the work of modeling MFD services probably should have been the first step in the MFD group.  I was already actively working print and scan in a number of forums.  As we move forward with services, at least partially, built with the semantic definitions established in print and scan this overall view paper will be useful.



Peter Zehler

Xerox Research Center Webster
Email: Peter.Zehler at
Voice: (585) 265-8755
FAX: (585) 265-7441
US Mail: Peter Zehler
Xerox Corp.
800 Phillips Rd.
M/S 128-25E
Webster NY, 14580-9701 



From: owner-mfd at [mailto:owner-mfd at] On Behalf Of William A Wagner
Sent: Thursday, November 20, 2008 8:44 PM
To: mfd at
Subject: MFD> overall MFD considerations




At the October face-to-face, we had what I believe was a useful overview discussion of the interfaces to the various MFD services.  I think that, although modeling a conceptual MFD service by service is a practical way to approach this task, there is the possibility of losing  or distorting (or never having) an overall perspective.  I have redrawn the interfaces diagram,  provided some text, attempted a generalization of the terminology, and  taken a cut at a generalized ticket life diagram. These are posted at


I have noticed some roughness in the Scan Service Terminology (I think Glen mentioned it) and a typeo:

"CrossFeed direction This is the direction perpendicular to the movement of the Hard Copy

Document or light bar of the scanner. For scanners that use a

technology other that a light bar, this is the direction along which the

image data is acquired most slowly. (See also Fast Scan direction, X

and §7.1.4) This direction is sometimes referred to as XFeed



I expect  the cross-feed is the direction along which the image data is acquired most rapidly.


Also, although I thought I understood the ScanJobTicket Lifecycle diagram (Fig 5 in the Scan Service Spec), when Pete explained it, I admit that I found it confusing when I tried to extrapolate a generalized JobTicket diagram, particularly when also looking at earlier versions and at the Multifunction Device Overview diagram  (fig 1) in the current spec. If this looks OK to everyone else, I will figure it out.


I would appreciate comments on the MFD Outline white paper...whether "it's a waste of time" or " it's a useful document" or whatever is appropriate in between. 




Bill Wagner

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