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. 10, 2015
Filed:
Sep. 14, 2011
Teruyuki Mitsumori, Yokohama, JP;
Kozo Ishio, Odawara, JP;
Hiroaki Takamura, Odawara, JP;
Masaya Oota, Joetsu, JP;
Shiho Sano, Joetsu, JP;
Takeshi Oowada, Joetsu, JP;
Masakazu Sugihara, Joetsu, JP;
Teruki Senokuti, Joetsu, JP;
Shiro Yasutomi, Joetsu, JP;
Yumi Hirabaru, Joetsu, JP;
Teruyuki Mitsumori, Yokohama, JP;
Kozo Ishio, Odawara, JP;
Hiroaki Takamura, Odawara, JP;
Masaya Oota, Joetsu, JP;
Shiho Sano, Joetsu, JP;
Takeshi Oowada, Joetsu, JP;
Masakazu Sugihara, Joetsu, JP;
Teruki Senokuti, Joetsu, JP;
Shiro Yasutomi, Joetsu, JP;
Yumi Hirabaru, Joetsu, JP;
Mitsubishi Chemical Corporation, Tokyo, JP;
Abstract
A method of forming an image including an electrophotographic photoreceptor and a toner, wherein a photosensitive layer in the electrophotographic photoreceptor includes an undercoat layer including metal oxide particles, a charge generation layer including hydroxygallium phthalocyanine, and a charge transport layer, and the toner contains toner matrix particles formed in an aqueous medium; the toner has a volume median diameter (Dv50) of from 4.0 μm to 7.0 μm; and the relationship between the volume median diameter (Dv50) and the percentage in number (Dns) of toner particles having a particle diameter of from 2.00 μm to 3.56 μm satisfies—0.0517EXP(22.4/Dv50)≦Dns≦0.233EXP(17.3/Dv50) where Dv50 is the volume median diameter (μm) of the toner, and Dns is the percentage in number of toner particles having a particle diameter of from 2.00 μm to 3.56 μm.