| 摘要 |
PROBLEM TO BE SOLVED: To reduce the occurrence frequency of non-feed jamming and double feed at a separation part and to reduce the occurrence of fouling of a document. SOLUTION: A recessed part 5a is formed in the surface of a paper feed belt 5 and a document automatic conveying device consists of an elastic member 19, a separation roller 9, and a core 18. The elastic member 19 forms a protrusion part corresponding to the recessed part 5a of a paper feed belt 5. The document is nipped between the recessed part 5a and the elastic member 19 and separated and fed.μ1,μ2, andμ4 are respectively fairly higher thanμ2, sand a relation of (μ1≫μ2,μ3|μ2, andμ1|μ2) is established among a friction factorμ1 during contact between the core 18 of the separation roller 9 and the paper feed belt 5, a friction factorμ2 between the core 18 and the document, a friction factorμ3 between the paper feed belt and a document, and a friction factorμ4 between the elastic member 19 and a document.
|
