| 摘要 |
A document passage in an image reading device, which is defined between an upper frame having means for transporting a given document and a base frame having a document setting surface and means for optically reading an image on the given document, is open at its one side by supporting the upper frame above the base frame in a cantilever state, so that the document of any size such as a name card and envelope can be dealt with to be subjected to image processing regardless of the size of the document. The document transporting means brings about a laterally urging force to be imparted to the document being forwarded on the document setting surface, so that the document can be stably forwarded without causing wobbling widthwise, thus effecting automatic document feeding and image reading with a high accuracy.
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