Sheet feeding or delivering – Delivering to stack and feeding therefrom – With sheet sensor for selective location
Patent
1989-07-11
1992-05-05
Olszewski, Robert P.
Sheet feeding or delivering
Delivering to stack and feeding therefrom
With sheet sensor for selective location
271109, 271225, 271275, 271184, 355 75, B65H 522
Patent
active
051101033
ABSTRACT:
An image forming apparatus has an automatic original feeder for conveying an original along a path to a transparent platen. This automatic original feeder conveys the original to a position where it lies between the platen and an original conveying device which is disposed on a frame which can cover the transparent platen. The frame is rotatably supported by a supporting member. This supporting member is attached movably up and down relative to the main body of the apparatus and it is elastically urged downward. This biases the original conveying device downwardly, so that the pressure applied to the original by the original conveying device is properly maintained, thereby ensuring reliable conveyance of the original. Clearances between the original conveying device and an original cover plate on the frame are covered with clearance covering members, thereby to prevent an outline of the original conveying device from appearing in a transferred image. The supporting member can be attached to the main body of the apparatus through an adapter member, thereby allowing a single model of automatic original feeder to be mounted on different types of image forming apparatuses. The original conveying device is reversible, the transparent platen has an inclined surface at its infeed/outfeed end, and the feeder has holding extensions which hold down the infeed end of the platen on opposite sides of the original's path.
REFERENCES:
patent: 3988065 (1976-10-01), Mileski et al.
patent: 4190359 (1980-02-01), Murayama et al.
patent: 4439036 (1984-03-01), Davis et al.
patent: 4896189 (1990-01-01), Akuzawa
Miyoshi Jun
Nagai Hiroyuki
Milef Boris
Mita Industrial Co. Ltd.
Olszewski Robert P.
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