In the present invention, by the term “the upper, lower, left or right part of one surface” is meant either of these parts of {HEAD ~ one surface} of paper sheet with a document printed thereon when the document is viewed in {TAIL ~ the right or correct direction} 
In the present invention , by the term “ the upper , lower , left or right part of one surface ” is meant either of these parts of { HEAD ~ one surface } of paper sheet with a document printed thereon when the document is viewed in { TAIL ~ the right or correct direction }
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 HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL