Copying apparatus having a device for holding sheets

Details Copying apparatus having a device for holding sheets Copying apparatus having a device for holding sheets

1988-06-21

1990-09-11

Schacher, Richard A.

Sheet feeding or delivering

Delivering

To receiver for pack of sheets

4147912, B65H 2920

Patent

active

049555979

ABSTRACT:
A copying apparatus includes an image forming device, a sheet reversal mechanism, and a sheet holding device having a tray, each of the components being independently separable. The sheet reversal mechanism transports to the tray each sheet either in face-up condition or with its face turned downward. The tray is lowered according to the volume of sheets loaded thereon and is caused to shift on a horizontal plane under a specified timing control. The lowering of the tray is effected through detection by a sensor of the volume of sheets loaded on the tray. After each such lowering, any downward movement of the tray is inhibited until a next sheet is loaded on the tray.

REFERENCES:
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patent: 4726579 (1988-02-01), Kiba et al.
IBM Technical Disclosure Bulletin entitled "Sheet Stacking Technique", vol. 17, No. 8, Jan. 1975.

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