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:
Jun. 29, 1993
Filed:
Nov. 26, 1991
Rikio Kasahara, Yokohama, JP;
Kenya Komada, Yokohama, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A sheet feed mechanism of an image recording apparatus comprises a lifter mechanism movable between a first position in engagement with a cassette that holds a sheet thereon and a second position in disengagement with the cassette, a first urging mechanism for urging the lifter mechanism to the first position with a first urging force, a second urging mechanism for urging the lifter mechanism to the second position with a second urging force that acts opposite to the first urging force, and a control mechanism connected the second urging mechanism, wherein the control mechanism is adapted to engage with the cassette when the cassette is mounted on the image recording apparatus for causing a change in the second urging forces depending on whether the cassette is mounted on the image recording apparatus or the cassette is dismounted from the image recording apparatus, such that the second urging force is smaller than the first urging force when the cassette is dismounted from the image recording apparatus and such that the second urging force is larger than the first urging force when the cassette is mounted on the image recording apparatus.