The disclosed invention provides a printing system that includes a transparency film detector having a light source for illuminating a sheet of input media and a detector for detecting whether a portion of the light provided by the light source propagated by {TAIL ~ internal reflection} within {HEAD ~ the volume} of the illuminated media sheet is detected 
The disclosed invention provides a printing system that includes a transparency film detector having a light source for illuminating a sheet of input media and a detector for detecting whether a portion of the light provided by the light source propagated by { TAIL ~ internal reflection } within { HEAD ~ the volume } of the illuminated media sheet is detected
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