Sheet feeding or delivering – Feeding – Multiple supplies
Reexamination Certificate
2000-01-19
2001-11-13
Skaggs, H. Grant (Department: 3651)
Sheet feeding or delivering
Feeding
Multiple supplies
C271S009070, C271S009080, C271S009110
Reexamination Certificate
active
06315280
ABSTRACT:
CLAIM OF PRIORITY
This application makes reference to, incorporates the same herein, and claims all benefits accruing under 35 U.S.C. §§119 from an application for Paper Feeding Apparatus of a Multi-functional Machine earlier filed in the Korean Industrial Property Office on Jan. 19, 1999 and there duly assigned Serial No. 1999-1408.
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a paper feeding apparatus transferring a document and sheets of printable paper into a multi-functional machine along the same transfer path and more specifically, to automatically feed all documents and sheets of paper into the multi-functional machine.
2. Description of the Related Art
A multi-functional machine has been improved to include functions of various office automated machines such as a printer printing data processed in a computer on a printable paper, a copying machine copying a document, and a facsimile machine transmitting data of documents to the other machine. Typically, in a multi-functional machine having the functions of such office automated machines, a document feeding unit for supplying documents and a paper feeding unit for supplying papers are separately and independently installed in a paper feeding apparatus of the multi-functional machine.
The multi-functional machine, however, becomes more complicated and more expensive to accommodate the installation of both a document feeding unit and a paper feeding unit in a paper feeding apparatus because the two feeding units having their own feeding paths in the paper feeding apparatus cause the paper feeding apparatus to be more complicated, and the complexity of the paper feeding apparatus requires the bigger and more expensive multi-functional machine.
Efforts to produce a less expensive and smaller multi-functional machine have been used to develop a paper feeding apparatus in which a document feeding unit supplying documents and a paper feeding unit supplying a printable paper share a common feeding path. This paper feeding apparatus requires a user to supply documents one by one when the documents are loaded in the document feeding unit of the paper feeding apparatus. I have noticed that it is inconvenient and time-consuming for the user to load a document in the document feeding unit and supply the documents one by one until all documents are fed into the multi-functional machine.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide an improved paper feeding apparatus with a document feeding unit feeding a document and a paper feeding unit feeding a recordable sheet of paper.
It is another object to provide a paper feeding apparatus in which a document feeding unit shares a common feeding path with a paper feeding unit.
It is yet another object to provide a paper feeding apparatus capable of allowing all documents to be stacked in a document feeding unit.
It is still another object to provide a paper feeding apparatus suitable to automatically feed all documents stacked in a document feeding unit one by one into a multi-functional machine.
It is a further object to provide a paper feeding apparatus capable of allowing all documents to be stacked in a document feeding unit and sheets of paper to be loaded in a paper feeding unit.
It is also an object to provide a paper feeding apparatus capable of automatically feeding sheets of paper loaded in a paper feeding unit after automatically feeding all document stacked in a document feeding unit one by one into multi-functional machine.
These and other objects may be achieved by providing a paper feeding apparatus including a pick-up roller picking up the documents and the printable paper, an automatic printable paper feeding unit installed in a feeding frame and including a printable paper feeding plate on which the printable paper is loaded and a feeding plate controller moving the printable paper feeding plate toward the pick-up roller when the printable paper is needed to be picked up, a document feeding unit installed over the automatic printable paper feeding unit and including a document feeding plate formed in such a manner that the document feeding plate does not interfere with the pick-up roller and the printable paper when the printable paper is picked up and that the document feeding plate does not have to be relocated in order to allow the printable paper and the documents to be fed, a sensor for sensing whether the document is loaded or not in the document feeding unit, a separating unit separating the picked-up documents or printable paper one by one, and a lever moving between a standby state and a pick-up state so that a plurality of documents are stacked in the standby state and that the documents are picked up by the pick-up roller in the pick-up state.
REFERENCES:
patent: 4991830 (1991-02-01), Yamanaka
patent: 5695182 (1997-12-01), Sekine
patent: 6227533 (2001-05-01), Jang
patent: 405124739 A (1993-05-01), None
Bushnell , Esq. Robert E.
Samsung Electronics Co,. Ltd.
Skaggs H. Grant
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