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Invention Grant
US07955773B2 Toner for developing electrostatic image, developer for developing electrostatic image, toner cartridge, process cartridge, and image forming apparatus 有权
用于显影静电图像的调色剂，静电图像显影剂，调色剂盒，处理盒和成像设备

Toner for developing electrostatic image, developer for developing electrostatic image, toner cartridge, process cartridge, and image forming apparatus
Abstract:
A toner for developing an electrostatic image includes a toner particle to which particles of an external additive A having a number average particle diameter of from 7 nm to 200 nm and particles of an external additive B having a number average particle diameter of from 30 nm to 4000 nm have been externally added. The ratio of the number average particle diameter of the particles of the external additive B to the number average particle diameter of the particles of the external additive A is in a range of from 2 to 20. The particles of one of the external additive A or the external additive B are particles having a core material covered with an organic material containing hydrogen and nitrogen. The particles of the other one of the external additive A or the external additive B are SiO2 particles.
Abstract(Chinese):

用于显影静电图像的调色剂包括调色剂颗粒，数均粒径为7nm至200nm的外部添加剂A的颗粒和数均粒径为30nm至 4000 nm已被外部添加。 外部添加剂B的粒子的数均粒径与外部添加剂A的粒子的数均粒径的比例在2〜20的范围内。外部添加剂A或其中之一的粒子 外部添加剂B是具有被含有氢和氮的有机材料覆盖的芯材的颗粒。 另外一种外部添加剂A或外部添加剂B的颗粒是SiO 2颗粒。

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