TWO-COMPONENT DEVELOPER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE

摘要

Provided is a two-component developer for developing an electrostatic latent image capable of stably printing a high-quality image.;Disclosed is a two-component developer for developing an electrostatic latent image which contains toner particles and carrier particles having a core particle surface coated with a coating resin, in which a volume average particle size of the toner particles, an average magnetization of the core particle per one particle in an applied magnetic field of 1 kilooersted, a volume average particle size of the carrier particles, a volume resistivity, and an area ratio of the core particles exposed on the carrier particle surface are in a specific range.

主权项

1. A two-component developer for developing an electrostatic latent image comprising:
toner particles; and carrier particles having a core particle surface coated with a coating resin; wherein a volume average particle size of the toner particles is 3.0 μm or more and 5.0 μm or less, an average magnetization of the core particle per one particle in an applied magnetic field of 1 kilooersted is 3.5×10−10 AM2/particle or more and 5.0×10−9 AM2/particle or less, a volume average particle size of the carrier particles is 15.0 μm or more and 30.0 μm or less, a volume resistivity is 1.0×108 Ω·cm or more and 5.0×1010 Ω·cm or less, and an area ratio of the core particles exposed on the carrier particle surface is 10.0% or more and 18.0% or less.