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:
Oct. 24, 2017
Filed:
Sep. 15, 2015
Konica Minolta, Inc., Chiyoda-ku, Tokyo, JP;
Hiroaki Umemoto, Neyagawa, JP;
Shigeru Tashiro, Toyokawa, JP;
Masayuki Satou, Toyohashi, JP;
Masahiro Yamaguchi, Toyokawa, JP;
Shoichi Yoshikawa, Okazaki, JP;
KONICA MINOLTA, INC., Tokyo, JP;
Abstract
An image forming apparatus has a function to clean exhaust air from inside and to discharge cleaned air. The image forming apparatus has an exhaust air duct configured to guide internal air to outside, and a cleaning filter configured to clean air passing through the exhaust air duct. A cubic measure of an airflow path in the exhaust air duct during normal operation has a first value, and the cubic measure of the airflow path in the exhaust air duct during operation causing a large amount of harmful matters to be contained in the exhaust air from inside has a second value greater than the first value.