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. 29, 2025
Filed:
Feb. 14, 2023
Ryohsuke Akaishi, Kanagawa, JP;
Akira Kunieda, Tokyo, JP;
Yohsuke Haraguchi, Kanagawa, JP;
Hirofumi Horita, Kanagawa, JP;
Satoshi Kuno, Tokyo, JP;
Koju Kawakami, Tokyo, JP;
Yasunobu Kidoura, Kanagawa, JP;
Ryohsuke Akaishi, Kanagawa, JP;
Akira Kunieda, Tokyo, JP;
Yohsuke Haraguchi, Kanagawa, JP;
Hirofumi Horita, Kanagawa, JP;
Satoshi Kuno, Tokyo, JP;
Koju Kawakami, Tokyo, JP;
Yasunobu Kidoura, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A sheet processing apparatus including a sheet feeder, a sheet processing device, a sheet ejection device, a purge unit, a multifeed sensor, and circuitry. The sheet feeder feeds a sheet toward a sheet conveyance passage. The sheet processing device performs a predetermined operation on the sheet. The sheet ejection device stacks the sheet when the predetermined operation has been performed. The purge unit stacks the sheet when the predetermined operation has not been performed. The multifeed sensor detects whether sheets are multifed and a number of multifed sheets. The circuitry counts a number of sheets, determines that the sheets stacked in the purge unit is full when a number of counted sheets reaches a predetermined number of sheets, and conveys the multifed sheets toward the purge unit and adds the number of counted sheets according to the number of multifed sheets, in response to detection of the multifed sheets.