US 12,346,062 B2
Toner, toner storage unit, image forming apparatus and method of forming image
Toshihiko Sugiyama, Shizuoka (JP); Junichi Watanabe, Shizuoka (JP); Yuka Mizoguchi, Shizuoka (JP); Hiroshi Yamashita, Shizuoka (JP); Kazuoki Fuwa, Shizuoka (JP); and Tsuneyasu Nagatomo, Shizuoka (JP)
Assigned to Ricoh Company, Ltd., Tokyo (JP)
Filed by Toshihiko Sugiyama, Shizuoka (JP); Junichi Watanabe, Shizuoka (JP); Yuka Mizoguchi, Shizuoka (JP); Hiroshi Yamashita, Shizuoka (JP); Kazuoki Fuwa, Shizuoka (JP); and Tsuneyasu Nagatomo, Shizuoka (JP)
Filed on Apr. 20, 2022, as Appl. No. 17/659,880.
Claims priority of application No. 2021-073221 (JP), filed on Apr. 23, 2021.
Prior Publication US 2022/0342332 A1, Oct. 27, 2022
Int. Cl. G03G 9/087 (2006.01)
CPC G03G 9/08793 (2013.01) [G03G 9/08797 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A toner comprising:
a binding resin; and
a metal crosslinking agent that forms a metal crosslinking with the binding resin,
wherein a highest temperature among inflection points where a measurement curve of a storage elastic modulus G′ of the toner shifts from upper convexes to lower convexes is 100° C. or higher.