Electrophotography – Machine operation – Job mode
Reexamination Certificate
1999-02-25
2001-05-01
Lee, Susan S. Y. (Department: 2852)
Electrophotography
Machine operation
Job mode
C271S186000, C271S225000, C399S081000, C399S365000
Reexamination Certificate
active
06226473
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a copying apparatus having means for discharging recording sheets face-up or face-down.
2. Description of the Related Art
Conventional copying machines photocopy a stack of document sheets placed face-up in a document tray from a bottom one first, and then deliver a finished recording paper face-up.
Copying machines that also print out image data from a host computer are available today. This type of copying machine discharges a recording sheet face-down since a host computer outputs image data, first page first, in the order of pages.
Since the copying machines of the second type discharge recording papers face-down even in its copying function, these machines inconvenience the user because the user needs to turn the finished recording sheet face-up to check the quality of copy. However, the face-up delivery is not always acceptable during the copying function. In an N-in-1 mode in which a plurality of documents are copied on a single recording paper, documents are fed the final page first, and the recording paper is delivered face-up. A blank area results ahead of the first page if the number of original documents is unknown. If the original documents are fed the first page first, and if the finished recording papers are discharged face-down, the N-in-1 mode is performed with the first page appearing first without a blank area. The face-down and face-up discharges have these advantages and disadvantages.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a copying machine that is free from the above problem.
It is another object of the present invention to provide a copying machine that performs copying in the correct order of pages when the user selects between a face-down delivery and a face-up discharge.
In accordance with these objects, there is provided a copying apparatus having first document feeding means for feeding a plurality of original documents stacked on a document tray to a document platen, one by one sequentially, the first page first, and a second document feeding means for feeding a plurality of original documents stacked on the document tray to the document platen, one by one, in the reverse order of the pages, the last page first. Copying means copy the original fed to the document platen onto a recording sheet and a first setting means is provided for setting one of a face down mode in which the recording sheet is discharged in a face-down orientation and a face-up mode in which the recording sheet is discharged in a faced-up orientation, a control means being provided for controlling the first document feeding means and the second document feeding means in accordance with the mode set by the first setting means.
In accordance with yet another aspect of the present invention, there is provided a control method for controlling a copying apparatus of the above type, the control method comprising the steps of determining which of the face-down or the face-up modes is set and feeding the original document in accordance with the determined mode.
In accordance with yet another aspect of the present invention, there is provided a copying machine comprising copying means for copying an original document onto a recording sheet, topside - bottomside inverting means for inverting, the topside down, the recording sheet copied by the copying means and an operation panel for setting either a mode in which the recording sheet is discharged face-down or a mode in which the recording sheet is discharged faced-up.
These and other objects and features will become apparent from the following description and drawings.
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Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Lee Susan S. Y.
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