Appendix B.2.1 of the W3C Last Call Working Draft of XHTML-Print [1] uses
the term "image's header" without defining it. We at Hewlett-Packard
suggest that the term be defined as the everything from the beginning of the
image up to and including the "start of scan marker."
Jim Bigelow
Hewlett-Packard Co.
[1] http://www.w3.org/TR/2003/WD-xhtml-print-20030729/