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. 14, 2021
Filed:
Mar. 04, 2020
Hisayoshi Sugawara, Kanagawa, JP;
Kei Sasaki, Kanagawa, JP;
Junya Suzuki, Kanagawa, JP;
Koji Furuta, Kanagawa, JP;
Yasuo Niikura, Kanagawa, JP;
Kazuki Mishina, Kanagawa, JP;
Kenji Hari, Kanagawa, JP;
Yuuta Mori, Kanagawa, JP;
Yuusuke Shibasaki, Kanagawa, JP;
Hisayoshi Sugawara, Kanagawa, JP;
Kei Sasaki, Kanagawa, JP;
Junya Suzuki, Kanagawa, JP;
Koji Furuta, Kanagawa, JP;
Yasuo Niikura, Kanagawa, JP;
Kazuki Mishina, Kanagawa, JP;
Kenji Hari, Kanagawa, JP;
Yuuta Mori, Kanagawa, JP;
Yuusuke Shibasaki, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A sheet stacking apparatus includes an ejector, a stacker, a wall, and an upper surface detector. The ejector ejects a sheet, and the stacker stacks the sheet ejected from the ejector. The wall contacts a trailing end of the sheet ejected from the ejector in an ejection direction to align the sheet. The upper surface detector detects an upper surface on a trailing end side of the sheet stacked on the stacker in the ejection direction. When the sheet moves toward the wall, the upper surface detector moves from a home position in which the upper surface detector detects the upper surface of the sheet to a retracted position in which the upper surface detector does not contact the sheet moving toward the wall.