US 12,429,809 B2
Cleaning blade, method of manufacturing the same, process cartridge, and image forming apparatus
Kazuma Tokai, Kanagawa (JP); Naoko Shohji, Shizuoka (JP); Keiichiro Juri, Tokyo (JP); Masahiro Ohmori, Kanagawa (JP); Hideki Kimura, Kanagawa (JP); Makoto Watanabe, Kanagawa (JP); Yosuke Suzuki, Kanagawa (JP); Jun Yamashita, Kanagawa (JP); Yusuke Sasa, Tokyo (JP); Maho Shimokawa, Kanagawa (JP); and Toshiki Mori, Kanagawa (JP)
Assigned to Ricoh Company, Ltd., Tokyo (JP)
Filed by Kazuma Tokai, Kanagawa (JP); Naoko Shohji, Shizuoka (JP); Keiichiro Juri, Tokyo (JP); Masahiro Ohmori, Kanagawa (JP); Hideki Kimura, Kanagawa (JP); Makoto Watanabe, Kanagawa (JP); Yosuke Suzuki, Kanagawa (JP); Jun Yamashita, Kanagawa (JP); Yusuke Sasa, Tokyo (JP); Maho Shimokawa, Kanagawa (JP); and Toshiki Mori, Kanagawa (JP)
Filed on Apr. 30, 2024, as Appl. No. 18/650,335.
Claims priority of application No. 2023-075485 (JP), filed on May 1, 2023.
Prior Publication US 2024/0369960 A1, Nov. 7, 2024
Int. Cl. G03G 21/00 (2006.01)
CPC G03G 21/0017 (2013.01) [G03G 2221/0005 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A cleaning blade, comprising:
an elastic member comprising:
a front edge surface extending in a longitudinal direction of the elastic member and a thickness direction orthogonal to the longitudinal direction; and
a bottom surface extending in a depth direction orthogonal to the longitudinal direction and the thickness direction, the bottom surface sharing a front edge ridge part with the front edge surface and facing a cleaning target; and
a coating layer coating the front edge surface, the front edge ridge part, and the bottom surface,
wherein the front edge ridge part coated with the coating layer is in contact with a surface of the cleaning target,
wherein the coating layer has an average thickness that increases with an increase in a distance from the front edge ridge part in the thickness direction on the front edge surface,
and
wherein the coating layer comprises;
a first fluorine resin; and
a second fluorine resin incompatible with the first fluorine resin.