Patent ID: 10394151

Abstract:
An electrostatic charge image developing toner includes a toner particle; a strontium titanate particle that is externally added to the toner particle and that is doped with a metal element having an electronegativity of 1.3 or less; and a silica particle that is externally added to the toner particle, in which in a case where a detected peak intensity of a metal element having an electronegativity of 1.3 or less is Me-R, a detected peak intensity of strontium is Sr—R, a detected peak intensity of silicon is Si—R, and an element proportion of strontium is Sr—P, Conditions (1) to (3) are satisfied, 0.08 kcps≤Me-R≤10 kcps,  (1)0.1%≤Sr—P≤3.0%, and  (2)0.15≤Sr—R/Si—R≤12.  (3)