Patent ID: 9703220
Date: 2017-07-11
CPC Classifications: G03G

Claim:
1. An image forming method using a yellow toner, a magenta toner, and a cyan toner, wherein the yellow toner, the magenta toner, and the cyan toner respectively comprise toner base particles containing a binder resin containing an amorphous polyester resin as a main component and a crystalline resin, aluminum, and a colorant, and Al (Y), Al (M), and Al (C) are from 300 to 1500 ppm and satisfy the following Formula (1) and Formula (2), wherein Al (Y) (unit: ppm) is a concentration of aluminum in the toner base particles of the yellow toner, Al (M) (unit: ppm) is a concentration of aluminum in the toner base particles of the magenta toner, and Al (C) (unit: ppm) is a concentration of aluminum in the toner base particles of the cyan toner that are measured by high-frequency inductively coupled plasma emission spectral analysis, [Numerical Formula 1]