The media position monitoring system 1 wherein said portion of said media initially moved across said light sensitive surface comprises a two dimensional area, whereby said map comprises a two dimensional pattern of media density values and {HEAD ~ media position monitoring system} determines {TAIL ~ a two dimensional media position} 
determines
The media position monitoring system 1 wherein said portion of said media initially moved across said light sensitive surface comprises a two dimensional area , whereby said map comprises a two dimensional pattern of media density values and { HEAD ~ media position monitoring system } determines { TAIL ~ a two dimensional media position }
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