It is therefore {HEAD ~ an object} of the present invention to provide an automatic document transportation device which is so structured that the separation between its conveyer belt and {TAIL ~ the document table} on which it is placed can be dependably adjusted to be constant independently of the condition of a shearing strain in the device 
It is therefore { HEAD ~ an object } of the present invention to provide an automatic document transportation device which is so structured that the separation between its conveyer belt and { TAIL ~ the document table } on which it is placed can be dependably adjusted to be constant independently of the condition of a shearing strain in the device
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