The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 19, 1995
Filed:
Mar. 15, 1994
Kosai Adachi, Tsukuba, JP;
Riso Kagaku Corporation, Tokyo, JP;
Abstract
A cut sheet feeder for use with an image forming apparatus, comprising: a sheet feed mechanism for picking up stacked cut sheets one at a time from a single sheet feed position and for feeding each sheet to an image recording portion; a sheet feed unit which is vertically movable relative to the sheet feed mechanism, to which a cassette containing cut sheets may be attached in a detachable manner, and which has a cutout portion corresponding to the position of the sheet feed mechanism; a sheet feed table which is vertically movable within the sheet feed unit and which carries a large number of cut sheets; and a sheet feed controller for lifting, in a sheet feed mode based on the cassette, at least the sheet feed unit up to a position where the cut sheets in the cassette reach the sheet feed position; and for lifting, in a sheet feed mode based on the sheet feed table, the sheet feed unit to a position where the top of the unit comes above the sheet feed position with the cutout portion of the unit letting the sheet feed mechanism pass therethrough unchecked, thereby lifting the sheet feed table up to a position where the cut sheets on the sheet feed table reach the sheet feed position.