Patent ID: 8092966

Claim:
Toner particles, comprising: 0.2 to 2.0 wt % of a styrene/acrylate-based charge control agent which is styrene/n-butylacrylate or styrene/2-ethylhexylacrylate having a weight-average molecular weight ranging from 2,000 to 15,000; 40 to 60 wt % of a styrene/acrylate-based binder resin having an acid value ranging from 2 to 10 mgKOH/g and a weight-average molecular weight ranging from 100,000 to 200,000; and 30 to 50 wt % of a polyester-based binder resin having an acid value ranging from 8 to 12 mgKOH/g and a weight-average molecular weight ranging from 20,000 to 50,000, wherein the toner particles are sphered.