US 12,078,961 B2
Toner, method of manufacturing toner, toner storage unit, image forming apparatus and method of forming image
Yuka Mizoguchi, Shizuoka (JP); Hiroshi Yamashita, Shizuoka (JP); Junichi Watanabe, Shizuoka (JP); and Tomomi Harashima, Kanagawa (JP)
Assigned to Ricoh Company, Ltd., Tokyo (JP)
Filed by Yuka Mizoguchi, Shizuoka (JP); Hiroshi Yamashita, Shizuoka (JP); Junichi Watanabe, Shizuoka (JP); and Tomomi Harashima, Kanagawa (JP)
Filed on Aug. 20, 2021, as Appl. No. 17/407,266.
Claims priority of application No. 2020-140795 (JP), filed on Aug. 24, 2020.
Prior Publication US 2022/0057726 A1, Feb. 24, 2022
Int. Cl. G03G 9/08 (2006.01); G03G 9/087 (2006.01); G03G 15/08 (2006.01)
CPC G03G 9/08755 (2013.01) [G03G 9/0804 (2013.01); G03G 9/0821 (2013.01); G03G 9/08711 (2013.01); G03G 15/0813 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A toner comprising:
a crystalline polyester resin; and
an amorphous polyester resin, wherein
a ratio of a storage modulus of the toner G′(To) at a temperature To to the storage modulus of the toner G′(To+3) at a temperature To+3 is greater than or equal to 10, in a case where the temperature To is within a range from 50° C. to 65° C.,
wherein To is a temperature at which the toner starts to melt, and
wherein the storage modulus of the toner G′(100) at a temperature of 100° C. is less than 1000 Pa.