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:
Apr. 21, 2009
Filed:
Sep. 16, 2005
Kumi Hasegawa, Numazu, JP;
Mitsuo Aoki, Numazu, JP;
Hyo Shu, Mishima, JP;
Minoru Masuda, Numazu, JP;
Tomoko Utsumi, Ebina, JP;
Kumi Hasegawa, Numazu, JP;
Mitsuo Aoki, Numazu, JP;
Hyo Shu, Mishima, JP;
Minoru Masuda, Numazu, JP;
Tomoko Utsumi, Ebina, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
The object is to provide a toner which can be smoothly replenished by a toner replenishing device using a powder pump even when the toner contains a releasing agent, and an image forming apparatus using the toner. There is provided a toner, which comprises a binder resin, a colorant and a releasing agent, has a dynamic friction coefficient of 0.15 to 0.35, and is replenished by the toner replenishing device having a powder pump configured to automatically supply the toner and a toner container arranged in conjunction with the powder pump so as to develop a latent electrostatic image on a image bearing member.