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    • 3. 发明专利
    • Image scanner
    • JP3838361B2
    • 2006-10-25
    • JP2003056748
    • 2003-03-04
    • 船井電機株式会社
    • 義範 浜沢
    • G03B27/50H04N1/04G06T1/00H04N1/10H04N1/107
    • PROBLEM TO BE SOLVED: To detect not a prior art edge but a correct home position without recognizing a pattern form, by devising a form of a home detecting pattern. SOLUTION: A single home detecting pattern 14 is arranged in a region of a white reference board 13 provided on one side in the direction of the length X of a manuscript stand 11, outside of a manuscript reading region 12. The home detecting pattern 14 has a most narrow portion 14a in a direction of Y orthogonal to the direction of the length X, is formed into an object form in the direction of the length X through the position of the least width portion 14a, and the home detecting pattern 14 of such a form is formed by sticker printing and stuck on a predetermined position of the white reference board 13. Based on image data of the home detecting pattern 14 read by a line sensor 21, the position of the least width portion 14a is detected, and the line sensor 21 is shifted with the position of the least width portion 14a as a home position H. COPYRIGHT: (C)2004,JPO&NCIPI