Image forming method
First Claim
Patent Images
1. A developer for developing an electrostatic latent image, the developer comprising:
- a carrier comprising a core material and a coating resin; and
a toner including coloring particles which at least contain a binder resin, a coloring agent and a releasing agent, and an external additive,whereinthe carrier has a median of an arithmetic average height distribution of from 0.45 to 0.65 μ
m,the core material has a volume average particle diameter of from 10 to 55 μ
m,the core material comprises magnetic particles having a saturation magnetization at 3,000 Oe of 50 A·
m2/kg or more,the toner has an average circularity of 0.975 or more, andthe circularity is defined by;
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Abstract
A cleaner-less image forming method includes forming an electrostatic latent image on a electrostatic latent image carrying member; developing the electrostatic latent image with a developer comprising a toner and a carrier to form a toner image; and transferring the toner image. The carrier has a median of an arithmetic average height distribution of from 0.45 to 0.65 μm, and the toner includes an external additive and has an average circularity of 0.975 or more.
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Citations
16 Claims
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1. A developer for developing an electrostatic latent image, the developer comprising:
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a carrier comprising a core material and a coating resin; and a toner including coloring particles which at least contain a binder resin, a coloring agent and a releasing agent, and an external additive, wherein the carrier has a median of an arithmetic average height distribution of from 0.45 to 0.65 μ
m,the core material has a volume average particle diameter of from 10 to 55 μ
m,the core material comprises magnetic particles having a saturation magnetization at 3,000 Oe of 50 A·
m2/kg or more,the toner has an average circularity of 0.975 or more, and the circularity is defined by; - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A cleaner-less image forming method comprising:
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forming an electrostatic latent image on a electrostatic latent image carrying member; developing the electrostatic latent image with a developer comprising a toner and a carrier to form a toner image, the carrier comprising a core material and a coating resin, and the toner including coloring particles which at least contain a binder resin, a coloring agent and a releasing agent, and an external additive; transferring the toner image to a fixing substrate; and fixing the transferred toner image to the fixing substrate by heating, wherein the carrier has a median of an arithmetic average height distribution of from 0.45 to 0.65 μ
m,the core material has a volume average particle diameter of from 10 to 55 μ
m,the core material comprises magnetic particles having a saturation magnetization at 3,000 Oe of 50 A·
m2/kg or more,the toner has an average circularity of 0.975 or more, and the circularity is defined by; - View Dependent Claims (12, 13, 14, 15, 16)
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Specification