| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a sorting apparatus by which a sheet of paper with an image formed of an image formation material, a sheet of paper with an image formed of an erasable material and a sheet of thermal paper can be sorted by a method wherein the reflection density of a sheet of paper to which a load is given is compared with a prescribed reference value. SOLUTION: Sheets of paper which are loaded so as to be mixed in a paper reservoir 1 are sent to an optical measuring system 5 via conveyance rollers 4, and their light transmittance and the mean vaue of their reflection densitities on both faces are measured. Then, the sheets of paper whose light transmittance is higher than a reference value are judged to be OHP sheets, and they are stored in an OHP sheet stockroom 7. Other sheets of paper are sent to heating rollers 8 so as to be heated, and the mean value of their reflection densities on both faces is measured by an optical measuring system 9. Then, the mean value of their reflection densities is compared with a prescribed reference value. Whether the sheets of paper are sheets of ordinary paper which are printed by an ordinary image formation material, or sheets of paper which are printed by an erasable image formation material, are judged. A sorting guide 11 and a sorting guide 13 are driven, and the sheets of paper are stored and stored in a thermal-paper stockroom 12, a recyclable-paper stockroom 14 and a reusable-paper stockroom 16.</p> |
