| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a paper sheet measuring device and an image forming device capable of making measurement over a wide range applicable even to measurements involving large dispersion when the measurements relating to the carrying characteristic of an object to be measured on a carry path are evaluated quantitatively using an optical means. <P>SOLUTION: The paper sheet measuring device to confirm the carrying characteristic of the object to be measured by measuring the dispersion of the measurements output from a light receiving means is equipped with a light emitting diode 34 to cast light to a recording sheet P on the carry path R1 and a light receiving element 35 to measure the light from the object projected from a projecting means, wherein the upper limit value Un or lower limit value Dn of the measurements output from the light receiving means are set previously, and when the measured value of the light receiving means exceeds the set upper limit u, the measured value is substituted with the set upper limit u, and when the measured value gets under the set lower limit u, the measured value is substituted with the set lower limit d. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
