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