| 摘要 |
PROBLEM TO BE SOLVED: To provide a pulverization toner for electrostatic latent image development, which has stable charging performance without influenced by an environment, particularly in a high temperature and high humidity environment, which prevents fog, gives high image density even in long-term use, and has excellent fixability and image reproducing property and good fluidity.SOLUTION: The pulverization toner for electrostatic latent image development is to be used for a magnetic single-component developer containing a magnetic powder material 2 used in an electrophotographic system, and comprises a plurality of magnetic toner particles 1. The magnetic toner particle 1 contains a crystalline polyester in a binder resin. In the toner, a percentage of magnetic toner particles 1 satisfying a relationship of L/D≤0.02 is 30% or less, where D is an equivalent circle diameter of the magnetic toner particle 1 obtained from a cross-sectional image by transmission electron microscope photography, and L is a minimum distance between a surface of the magnetic toner particle 1 and a surface of the magnetic powder material 2; and a percentage of magnetic toner particles 1 satisfying A≥0 is 10% or less, where A is a distance between a top of projection of the magnetic powder material 2 present near the surface of the magnetic toner particle 1 and exposed from the surface of the magnetic toner particle 1 and the surface of the magnetic toner particle 1. |
