A printer and method for operating a printer are provided that prints
using a receiver medium having a rolled portion with an outermost layer
from which an unrolled portion extends to a print engine. The method
comprises: sensing a condition indicating the receiver medium may have
been contacted by other than a component of the printer or by a donor
material applied by the print engine; measuring an aspect of the receiver
medium indicative of the circumferential length of the outermost layer;
determining a circumferential length of the receiver medium based upon
the measured aspect of the rolled portion of the receiver medium;
determining an exclusion length of the receiver medium based upon the
determined circumferential length and a travel distance that is a
representation of a length of the unrolled portion between the rolled
portion and the print engine; and automatically advancing the receiver
medium by the exclusion length.