| 摘要 |
PROBLEM TO BE SOLVED: To provide a low cost reliable paper feeding device not deteriorating overlapping sending prevention function even if a paper feeding speed is 200 mm/sec or more. SOLUTION: When a diameter of a paper feeding roller 2 is in a range of 36±2 mm, paper feeding speed while a tip of a paper sheet passes from a paper feeding starting position A to a nip part D is controlled to a fixed value between 90 and 160 mm/sec. When the diameter of the paper feeding roller 2 is in a range of 32±2 mm, the paper feeding speed is controlled between 70 to 170 mm/sec, and when the diameter of the paper feeding roller 2 is in a range of 28±2 mm, the paper feeding speed is controlled between 60 to 250 mm/sec. The paper-feeding roller 2 is provided with a paper feeding speed- controlling means and is provided with a tip position detecting means 20 detecting a tip of paper sheet P downstream of a nip part D of the paper-feeding roller 2 and a separating pad 7.
|
