摘要:
Disclosed is a method for forming color image, in which one of the yellow, magenta, cyan and black toners is a high water content toner, and one of the yellow, magenta, cyan and black toners is a toner low water content toner, water content of the high water content toner is 1.2 to 2.5 % by weight based on the high water content toner, and water content of the low water content toner is 0.1 to 1.2% by weight based on the low water content toner.
摘要:
An image forming method for forming a full color toner image by overlaying four color electrostatic image developing toners of black, yellow, magenta and cyan, wherein at least one of the four color electrostatic image developing toners is a toner containing a large diameter external additive in a larger amount and at least one is a toner containing the large diameter external additive in a smaller amount, in which the primary particle diameter of the large diameter external additive is from 150 nm to 2,000 nm, the content of the large diameter external additive in the toner containing the large diameter external additive in larger amount is from 0.06% by weight to 4.0% by weight and the content of the large diameter external additive in the toner containing the large diameter external additive in the smaller amount is not more than 0.05% by weight.
摘要:
Disclosed is a method for forming color image, in which one of the yellow, magenta, cyan and black toners is a high water content toner, and one of the yellow, magenta, cyan and black toners is a toner low water content toner,water content of the high water content toner is 1.2 to 2.5% by weight based on the high water content toner, and water content of the low water content toner is 0.1 to 1.2% by weight based on the low water content toner.
摘要:
An image forming method for forming a full color toner image by overlaying four color electrostatic image developing toners of black, yellow, magenta and cyan, wherein at least one of the four color electrostatic image developing toners is a toner containing a large diameter external additive in a larger amount and at least one is a toner containing the large diameter external additive in a smaller amount, in which the primary particle diameter of the large diameter external additive is from 150 nm to 2,000 nm, the content of the large diameter external additive in the toner containing the large diameter external additive in larger amount is from 0.06% by weight to 4.0% by weight and the content of the large diameter external additive in the toner containing the large diameter external additive in the smaller amount is not more than 0.05% by weight.
摘要:
Disclosed is an electrostatic image developing toner comprising a coloring agent and toner particles, said toner particles have a matrix-domain structure, and the average of the area of a Voronoi polygon formed by the perpendicular bisecting line between the centers of gravity of domains adjacent to each other in said matrix-domain structure is from 20,000 to 120,000 nm2, and the variation coefficient of the area of said Voronoi polygon is less than or equal to 25 percent. Color image having, particularly good transparency and excellent color difference, can be obtained by the toner which is not affected by a residual material present on the surface of toner particles and does not result in variation of the amount of static charge at high temperature as well as at high humidity or after long leaving without operation.
摘要:
An image forming method is disclosed. The method comprises the steps of forming a latent image on a latent image carrying member, developing the latent image by a developer containing a toner, transferring the toner image onto an intermediate transfer member, transferring the toner image transferred on the intermediate transfer member onto a image forming support, and fixing the toner image formed on the image forming support, wherein the toner contains a resin and a colorant, and the toner is constituted by toner particles having a variation coefficient of the shape coefficient of not more than 16% and a number variation coefficient of the particle size distribution of not more than 27%.
摘要:
An image forming method is disclosed. The method comprises the steps of forming a latent image on a latent image carrying member, developing the latent image by a developer containing a toner, transferring the toner image onto an intermediate transfer member, transferring the toner image transferred on the intermediate transfer member onto a image forming support, and fixing the toner image formed on the image forming support, wherein the toner contains a resin and a colorant, and the toner is constituted by toner particles having a variation coefficient of the shape coefficient of not more than 16% and a number variation coefficient of the particle size distribution of not more than 27%.
摘要:
An image forming method by developing an electrostatic latent image formed on a photoreceptor to form a toner image employing a developer comprising toner, transferring the toner image onto an image forming material, and fixing the transferred toner image employing a fixing unit, is disclosed. The fixing unit is comprised of a heating roller and a pressure roller which is brought into contact with said heating roller, the heating roller is constituted of a cylinder having an interior diameter of from 10 to 70 mm and a wall thickness of from 0.1 to 2 mm comprised of a metal or a metal alloy, and a heating member being incorporated in the interior, a surface of the cylinder being covered with an elastic martial having an Asker hardness C of less than 70 degrees at a thickness of 0.1 to 30 mm, and the pressure roller is constituted of a metal cylinder whose surface is covered with an elastic material having an Asker hardness C of less than 80 degrees at a thickness of from 0.1 to 30 mm.
摘要:
An image forming method is disclosed. The method comprises the steps of forming a latent image on a latent image carrying member, developing the latent image by a developer containing a toner, transferring the toner image onto an intermediate transfer member, transferring the toner image transferred on the intermediate transfer member onto a image forming support, and fixing the toner image formed on the image forming support, wherein the toner contains a resin and a colorant, and the toner is constituted by toner particles having a variation coefficient of the shape coefficient of not more than 16% and a number variation coefficient of the particle size distribution of not more than 27%.
摘要:
A toner for developing an electrostatic image, includes a toner particle containing a binder resin and a colorant, wherein a Feret's average horizontal diameter of the colorant is from 10 nm to 500 nm, a ratio of the colorant having the Feret's horizontal diameter of from 2 nm to 300 nm is 50% by number or more, and the colorant contains a compound or a lake of the compound.