Canon Kabushiki Kaisha

Kazuki Kaneko

Daisuke Yoshiba

Kozue Uratani

Shohei Tsuda

Ryo Nagata

Mariko Yamashita

Tomoya Nagaoka

A toner comprising a toner particle including a binder resin and a colorant and an external additive, wherein the external additive contains an external additive A having a Feret diameter of 60 to 200 nm, the external additive A is inorganic fine particles or organic-inorganic composite fine particles, adhesion index of the external additive A to the toner is 0.00 to 3.00, and penetration depth b and protrusion height c satisfy Relational expressions (1) and (2) below, where b (nm) denotes penetration depth of the external additive A, at a portion of the external additive A penetrating into the toner particle interior from the surface thereof, and c (nm) denotes a protrusion height of the external additive A at that portion, in an observation of an image resulting from image processing of a cross section of the toner using TEM;60&#x2264;&#x2264;200&#x2003;&#x2003;(1),0.15&#x2264;/()&#x2264;0.30&#x2003;&#x2003;(2).

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Tokyo, Japan

Kazuki Kaneko