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:
Dec. 17, 2019
Filed:
Dec. 05, 2018
Applicant:
Hp Printing Korea Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Inventors:
Sung Weon Song, Seoul, KR;
Young Min Yoon, Seoul, KR;
Assignee:
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P., Spring, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); G03G 21/00 (2006.01);
U.S. Cl.
CPC ...
G03G 15/5054 (2013.01); G03G 15/00 (2013.01); G03G 21/00 (2013.01); G03G 2215/00059 (2013.01);
Abstract
An image forming apparatus includes a sensor assembly having a window and a sensor which senses a developer through the window, and a shutter device which opens and closes the window, and thereby sensing in a sensible state is maintained, and a lifetime thereof is extendable.