摘要:
The present invention relates to an automatic conveying device for use in an image copying machine. The automatic conveyor (4) comprises a main portion (14) mounted to pivot between a closed position to cover a transparent plate (8) and an open position to expose the transparent plate (8). Document conveying means (74) convey a document along the transparent plate (8) when the main portion frame member (70) is placed in the closed position. The main portion frame member (70) is mounted via a hinge mechanism (72) so as to be pivotally coupled to the housing (6) at a position at the back of the center of gravity of the main portion (14). A resiliently urging means (264) is interposed between the movable frame member and a pivoting member (182) of the hinge mechanism (72), in order to impart a balancing rotational moment of a required amount to the frame member (70).
摘要:
An automatic document conveying device (4) to be applied to an image processor (2) that has a transparent plate (8) disposed on the upper surface of a housing (6) so that a document to be processed is placed thereon. The automatic document conveying device comprises a document introduction portion (12), a main portion and a document delivery portion. The document introduction portion (12) includes an introduction portion frame member (18), a document table (20) that extends from the introduction portion frame member (18) toward the upstream side, a document introduction passage that extends from the document table (20) to the transparent plate (8) inside the introduction frame member (18), a document sending means for sending the document onto the document introduction passage from the document table, and a document introduction means for introducing onto the transparent plate the document sent onto the document introduction passage. The main portion includes a movable main portion frame member (70) that is mounted to move between a closed position for closing the transparent plate (8) and an open position for exposing the transparent plate (8) into view, and the document conveying means (74) that conveys the document along the transparent plate (8) when the movable main portion frame member (70) is at the closed position. The document conveying means (74) is constituted by a conveyer belt mechanism mounted on the movable main portion frame member. The document delivery portion (16) includes a delivery portion frame member (100), a document delivery passage defined within the delivery portion frame member, and a document delivery means that delivers the document onto the document receiving tray through the document delivery passage. The document delivery portion is provided with a document re-introduction passage that extends to the transparent plate being branched from the document delivery passage.
摘要:
A sorter comprising a plurality of vertically arranged movable bin trays (56A-E) and a transfer mechanism (87) for elevating and lowering the bin trays successively. Follower projecting portions (86A-E) projecting in a predetermined direction are provided respectively in the bin trays (56A-E), and the projecting lengths of the projecting portions are larger stepwise from the bottom to the top of the bin tray arrangement. The transfer mechanism (87) includes ring-like cams (92) disposed opposite to the follower projecting portions (86A-E) so as to be free to rotate about a central axis extending in the predetermined direction and to move in the direction of the central axis, with its extending length forwardly in the direction of the central axis progressively increasing from a given angular part in a predetermined rotating direction, and driving means (122) or rotating the cam (92) in the predetermined rotating direction and moving it forwardly in the direction of the central axis and also for rotating it in a reverse rotating direction and moving it rearwardly in the direction of the central axis.
- a transparent plate -on which to place a document to be copied, - an optical system - for projecting the image of the document onto an electrostatographic photosensitive member in an exposure zone located along the moving path of the photosensitive member, and -a driving means - for reciprocating one of at least a part of the optical system and the transparent plate is characterized in that -said driving means includes - a backward movement restricting means - for stopping the backward movement of said one of at least a part of the optical system and the transparent plate fully accurately at a predetermined forward movement start position.
摘要:
A cleaning device in an electrostatic copying apparatus for removing residual toner particles from the surface of a photosensitive member adapted to move through an endless conveying passage, which comprises a blade holding mechanism (52, 54) mounted pivotally around an axis (48) extending substantially parallel to the surface of the photosensitive member (30) and substantially perpendicular to the moving direction of the photosensitive member and a cleaning blade (56) mounted on the blade holding mechanism. This cleaning device (56) further includes a first spring means (70) for elastically biasing the blade holding mechanism to a non-operating position at which the cleaning blade (56) moves away from the surface of the photosensitive member (30) and a specially improved operating mechanism for selectively positioning the blade holding mechanism against the elastic biasing action of the first spring means (70) at an operating position at which the cleaning blade (56) is pressed on the surface of the photosensitive member (30).
摘要:
The present invention relates to a developing material supplying control device for an electrostatic copying apparatus which comprises an oscillation circuit (18) composed of an oscillation coil (16) provided in the way of a toner supplying passage, a timer (21), a counter (20) for counting the output signal from the oscillation circuit (16) at every interval predetermined by the timer (21) to supply a discriminating output signal when the counted value is equal to a predetermined value for each of the intervals, and toner supplying means in response to the discriminating output signal from the counter (20) for supplying the toner (5) in the way of the toner supplying passage. Since this invention employs the oscillation coil (16) and does not employ a mechanical switch having a movable contact for detecting a toner (5) in the toner supplying passage, toner supplying operation is achieved precisely.