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. 22, 2015
Filed:
Oct. 06, 2014
Mitsutoshi Kichise, Osaka, JP;
Kenji Nakamura, Osaka, JP;
Takeshi Yamashita, Osaka, JP;
Tamotsu Ikeda, Osaka, JP;
Minoru Toyoda, Hyogo, JP;
Yasuhide Matsuno, Osaka, JP;
Mitsutoshi Kichise, Osaka, JP;
Kenji Nakamura, Osaka, JP;
Takeshi Yamashita, Osaka, JP;
Tamotsu Ikeda, Osaka, JP;
Minoru Toyoda, Hyogo, JP;
Yasuhide Matsuno, Osaka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A process unit includes a rotatable image bearer to bear a toner image on a surface thereof; a developer bearer to supply developer to the image bearer and including a first range, a second range different in property from the first range and adjacent to the first range on an outer side in an axial direction via a first boundary, and a second boundary on an outer side of the first boundary in the axial direction; a cleaning member to remove residual developer from the image bearer; and an abutment part disposed to contact the surface of the image bearer to remove a foreign substance from the image bearer. The abutment part is disposed astride at least one of a first position on the image bearer corresponding to the first boundary, and a second position on the image bearer corresponding to the second boundary.