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:
Jan. 01, 2013
Filed:
Oct. 10, 2011
Masayoshi Nakayama, Tokyo, JP;
Yoshitaka Fujinuma, Tokyo, JP;
Susumu Takeyama, Tokyo, JP;
Tatsuya Kubo, Tokyo, JP;
Masayoshi Nakayama, Tokyo, JP;
Yoshitaka Fujinuma, Tokyo, JP;
Susumu Takeyama, Tokyo, JP;
Tatsuya Kubo, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A developing device that can discharge developer by an amount of developer in the developing device increased by a carrier supplemented into the developing device includes a supply transport screw and a receiving transport screw in a top and bottom positional relationship, the rotational axes of the supply transport screw and the receiving transport screw are mutually parallel in relation to an image support member. The developing device also includes an inclined transport screw arranged at an incline between one end of the supply transport screw and an other end of the receiving transport screw. The developing device also includes a supply unit for supplying new carrier into a casing and a discharge port and discharge unit for discharging part of the developer housed in the casing to the outside, the discharge port provided on a part of the casing corresponding to an upper part of the inclined transport screw.