Automatic document conveying device which opens so jams may be cleared

Abstract

An automatic document conveying device is provided in an image-processing machine having a transparent plate on which a transparent plate on which to place a document to be processed, the transparent plate having been disposed on the upper surface of a housing. The automatic conveying device is provided with a document delivery re-introduction section which sends a document delivered through a document introduction section and a central main portion selectively to a first document receiving tray, a second document receiving tray and a transparent plate by use of multiple branched sheet passageways. The document delivery re-introduction section is provided with a first branched passage for sending a document into the first document receiving tray, a second branched passage for sending the document into the second document receiving tray, and a re-introduction passage for re-introducing the document into a transparent plate. The document delivery re-introduction section is provided with a first opening-closing member for opening most of a first branched passage and most of a second branched passage, and a second opening-closing member for opening most of a re-introduction passage in a state where the first opening-closing member is held at an open position.