| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve a problem that a conveyance amount of a paper sheet is varied by the accumulated error of part accuracy, eccentricity and deflection of a driving roller, and variation of a thickness of a conveying belt interposed between an encoder detecting a rotation amount of the driving roller and an actual movement amount of the paper sheet conveyed by the conveying belt. <P>SOLUTION: A feeding correction amount calculating part 412 calculates a correction amount of a movement amount of the conveying belt 31 in accordance with the eccentricity of a conveying roller 32 and the variation of the thickness of the conveying belt 31 based on a detection signal from a displacement variation detector 241 detecting the eccentricity of the conveying roller 32 and the variation of the thickness of the conveying belt 31, the correction amount is imparted to a speed/position profile storing part 406, and a speed/position profile is corrected, and is imparted to a comparison calculating part 405, and a target movement amount is corrected. <P>COPYRIGHT: (C)2008,JPO&INPIT |
