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. 08, 2020
Filed:
May. 28, 2019
Konica Minolta, Inc., Chiyoda-ku, Tokyo, JP;
Takahiro Iwasaki, Hino, JP;
Konica Minolta, Inc., Tokyo, JP;
Abstract
An image forming apparatus including: a cyclone which centrifugally separates toner from air containing the toner scattered; a storage which stores the toner separated by the cyclone; a filtering portion which allows air to pass, the air being obtained after the toner is separated by the cyclone; a duct which guides the air that passes through the filtering portion; a fan which generates a flow of the air to discharge the air that passes through the filtering portion; and a hardware processor which measures a rotational speed of the fan, detects a full state in which the storage is filled with the toner based on change of the rotational speed of the fan, and issues a warning in a case in which a variation rate of rotational speeds of the fan measured a plurality of times is a predetermined value or more.