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:
Mar. 17, 2020
Filed:
May. 17, 2019
Applicant:
Hewlett-packard Development Company, L.p., Spring, TX (US);
Inventor:
Yuya Kato, Kanagawa, JP;
Assignee:
HEWLETT-PACKARD DEVELOPMENT COMPANY L.P., Spring, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 1/00 (2006.01); G03G 15/08 (2006.01); G03G 15/16 (2006.01); G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0812 (2013.01); G03G 15/0818 (2013.01); G03G 15/163 (2013.01); G03G 15/5008 (2013.01);
Abstract
An image forming apparatus includes a developer carrying body to transfer developer to a photosensitive body. The developer carrying body has an outer circumference and grooves spaced apart along the outer circumference. The grooves occupy 27% or more of the outer circumference. The developing carrying body is rotatable in a rotational direction that imparts the developing carrying body with a direction of movement that is opposite to a direction of movement of the photosensitive body, at a position between the developer carrying body and the photosensitive body.