Fuji Xerox Co., Ltd.

Emi Matsushita

Shintaro Anno

Fusako Kiyono

Shuji Sato

Hiroki Omori

Hiroki Ohmori

Yasuo Kadokura

Hiroyoshi Okuno

Mona Tasaki

Keita Yamamoto

An electrostatic charge image developing toner includes toner mother particles containing at least a binder resin, elastomer particles including a first oil, and inorganic particles including a second oil, wherein a viscosity of the first oil is equal to or higher than a viscosity of the second oil.

Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge

According to one example of the present application, there is provided a toner for developing an electrostatic charge image, containing: a toner particle containing a binder resin; a particle adhering to a surface of the toner particle; and an elastomer particle containing one or more kinds of oil, wherein a volume particle size distribution index GSD(D50/D16) on a small diameter side of the toner particle and a volume particle size distribution index GSD(D50/D16) on a small diameter side of the elastomer particle satisfy Formula (1):&#x2267;1.&#x2003;&#x2003;Formula (1):

Toner for developing electrostatic charge image, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method

An electrostatic-image developing toner contains toner particles and particles of a metallic salt of a fatty acid deposited on the toner particles. The particles of the metallic salt of the fatty acid contain 0.0035% to 0.07% by mass of sulfur element.

Electrostatic-image developing toner, electrostatic image developer, and toner cartridge

An electrostatic charge image developing toner includes toner particles, elastomer particles which are externally added to the toner particles and contain a first oil, and inorganic particles which are externally added to the toner particles and contain a second oil having a viscosity higher than a viscosity of the first oil at 25&#xb0; C.

An electrostatic charge image developing toner includes a toner particle including a core particle containing a polyester resin and a coating layer containing a vinyl resin that coats the surface of the core particle, and an external additive that is formed of silica particles having an average circularity of from 0.75 to 0.9 and an average value of ratios of circle equivalent diameters Da obtained by a plane image analysis to the maximum height H obtained by a stereoscopic image analysis of more than 1.5 and less than 1.9.

An image forming apparatus includes a first image forming unit and a second image forming unit, wherein the first image forming unit is arranged on a downstream side of the second image forming unit in a traveling direction of a transfer medium, the first developing unit contains a first developer containing a first toner and a first carrier, the second developing unit contains a second developer containing a second toner and a second carrier, and a ratio of a resistance value of the first carrier to a resistance value of the second carrier is within a range of from 4.0&#xd7;10to 9.7&#xd7;10.

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Kanagawa, Japan

Emi Matsushita