In this two dimensional embodiment, the initial scan of {HEAD ~ the media} is a two dimensional motion rather than along {TAIL ~ a path}, in which the sensor scans not merely a strip of the media but rather a two dimensional area of the media which may be moved across the sensor during subsequent passes 
In this two dimensional embodiment , the initial scan of { HEAD ~ the media } is a two dimensional motion rather than along { TAIL ~ a path } , in which the sensor scans not merely a strip of the media but rather a two dimensional area of the media which may be moved across the sensor during subsequent passes
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH