Toner for developing electrostatic image and image forming method
AssigneeKonica Corporation
InventorsTomomi Oshiba, Ken Ohmura, Takao Yamanouchi, Asao Matsushima, Shigenori Kouno
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Abstract
Disclosed is a toner for developing electrostatic image, comprising a resin and colorant. The toner has a variation coefficient of shape coefficient of not more than 16 percent and a number variation coefficient in the number particle size distribution of not more than 27 percent. An image forming method employing the toner is also disclosed.
Claims44
A toner for developing electrostatic image comprising a resin and colorant wherein the toner has a variation coefficient of shape coefficient of not more than 16 percent and a number variation coefficient in the number particle size distribution of not more than 27 percent.
A toner for developing electrostatic image comprising a resin and colorant wherein at least 50 percent of toner particles in number have no corners and the toner particles have a number variation coefficient in the number particle size distribution of not more than 27 percent.
A toner for developing electrostatic image comprising a resin and colorant wherein at least 65 percent of toner particles has a shape coefficient in the range of 1.0 to 1.6 and a variation coefficient of shape coefficient of not more than 16.
An image forming method in which an electrostatic latent image formed on photoreceptor and a developer material are arranged face to face in a non-contact state and images are visualized by jumping only toner comprising resin and colorant, wherein the toner has a variation coefficient of shape coefficient of not more than 16 percent and a number variation coefficient in the number particle size distribution of not more than 27 percent.
An image forming method in which an electrostatic latent image formed on photoreceptor and a developer material are arranged face to face in a non-contact state and images are visualized by jumping only toner comprising resin and colorant, wherein at least 50 percent of toner particles in number have no corners and a number variation coefficient in the number particle size distribution of not more than 27 percent.
An image forming method in which an electrostatic latent image formed on photoreceptor and a developer material are arranged face to face in a non-contact state and images are visualized by jumping only toner comprising resin and colorant, wherein at least 65 percent of toner particles has a shape coefficient in the range of 1.2 to 1.6 and the toner has a variation coefficient of shape coefficient of not more than 16 percent.
Dependencies are inferred from the claim text.