Developer for developing to electrostatic image, imaging device and method

Abstract

A developer, which includes a base toner containing at least a binding resin and a coloring agent; and inorganic fine particles; wherein the base toner satisfies 105<=SF-1<==130 and 12<=SF-2<=180, wherein SF-1=((absolute maximum length of a particle of the base toner) 2/area of the particle of the base toner)x(pi/4)x100, wherein SF-2=(peripheral length of the particle of the base toner) 2/(area of the base toner)x( 1/4 pi)x100, wherein the inorganic fine particles have an average particle diameter that ranges between 30 nm to 160 nm.

Description

technical field [0001] The present invention relates to a developer for developing an electrostatic image, an image forming apparatus including the developer, an image forming method including the developer, and a process cartridge including the developer. Background technique [0002] A typical image forming method such as electrophotography or electrostatic method generally includes a development process, a transfer process, and a fixing process. In the development process: the photoconductive insulating layer is uniformly charged; then the insulating layer is exposed, so that the charge on the exposed area is dispersed to form a charged latent image; after the charged toner powder particles are attached, the latent image become visible. In the transfer process, the resulting visible image is transferred to a transfer medium, such as transfer paper. In the fixing process, the transferred image is fixed by applying heat or pressure thereto (typically using a heat roller)....

AI Technical Summary

Problems solved by technology

[0019] In addition, after the toner is made, it may be stored or transported under harsh conditions, for e

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