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:
Apr. 14, 1992
Filed:
Feb. 14, 1990
Naoyuki Matsuda, Osaka, JP;
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Abstract
A sheet feed arrangement is provided in an image forming apparatus such as a printer or the like and is comprised of a sheet cassette for accommodating a plurality of sheet materials, a lifting mechanism disposed below the sheet cassette for lifting end portions of the sheet materials only when the sheet materials are fed from the sheet cassette, a level detector disposed above the sheet cassette for detecting that an upper end surface of a topmost sheet material has been lifted up to a predetermined level, and a control system for stopping an upward movement of the sheet materials when the level detector detects that the upper end surface of the topmost sheet material has reached the predetermined level and for subsequently lowering the end portions of the sheet materials by a predetermined vertical length.