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IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

发明专利审中
20权利要求 · 2 独立
§ Ⅰ

卷宗概要

发明人

Daisuke TANO; Yoshiteru YAMADA; Yuka KAWAMOTO; Misaki KOMURA

IPC 分类

G3G 21/

CPC 分类

G3G21/17

An image forming apparatus includes an image holder; a charging unit that charges a surface of the image holder; an electrostatic charge image forming unit that forms an electrostatic charge image on the charged surface of the image holder; an electrostatic charge image developing unit that has an electrostatic charge image developing toner containing toner particles and develops the electrostatic image with the electrostatic charge image developing toner to form a toner image, in which the toner particles contain a metal pigment having an average equivalent circle diameter of 5 μm or more and 15 μm or less, an average value of a ratio b/a of a minor axis diameter b to a major axis diameter a in a cross section of the toner particles is 0.5 or more and 0.8 or less, and an average value of an area of the metal pigment in a projection image of the toner particles in a case where the toner particles are viewed from a thickness direction is 0.5 or more and 0.7 or less; a transferring unit that transfers the toner image to a recording medium; and a cleaning unit that has a cleaning blade coming into contact with the surface of the image holder to clean the surface, in which the cleaning blade has a breaking energy of 5000 MPa·% or more and 15000 MPa % or less and has a 100% modulus of 10 MPa or more at a contact portion with the image holder.

原文(中文)

An image forming apparatus includes an image holder; a charging unit that charges a surface of the image holder; an electrostatic charge image forming unit that forms an electrostatic charge image on the charged surface of the image holder; an electrostatic charge image developing unit that has an electrostatic charge image developing toner containing toner particles and develops the electrostatic image with the electrostatic charge image developing toner to form a toner image, in which the toner particles contain a metal pigment having an average equivalent circle diameter of 5 μm or more and 15 μm or less, an average value of a ratio b/a of a minor axis diameter b to a major axis diameter a in a cross section of the toner particles is 0.5 or more and 0.8 or less, and an average value of an area of the metal pigment in a projection image of the toner particles in a case where the toner particles are viewed from a thickness direction is 0.5 or more and 0.7 or less; a transferring unit that transfers the toner image to a recording medium; and a cleaning unit that has a cleaning blade coming into contact with the surface of the image holder to clean the surface, in which the cleaning blade has a breaking energy of 5000 MPa·% or more and 15000 MPa % or less and has a 100% modulus of 10 MPa or more at a contact portion with the image holder.