| 摘要 |
PROBLEM TO BE SOLVED: To provide a means for preventing documents placed in a document placing portion from being disturbed by a document projecting from an opening part in a document conveying device capable of conveying the document for double-side reading. SOLUTION: An ADF 3 conveys the document Gm in order of a first route, a second route and a third route. In the first and the second routes, the document Gm is conveyed for switch-back in a double-way path 39, and delivered in the third route without switch-back conveyance. A separating roller 34 is provided downstream of a paper feeding tray 30, and a second front sensor 53 is arranged downstream of the separating roller 53. A plurality of conveying rollers 35A-35D are arranged in a document conveyance path 32. Driving force of a motor 67 is transmitted to the conveying rollers 35A-35D and the separating roller 34 through a first gear system 70 and a third gear system 120. A control section 60 switches a motor 60 from CW rotation to CCW rotation when the second front sensor 53 detects a rear end of the document Gm. COPYRIGHT: (C)2008,JPO&INPIT
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