US 12,030,090 B2
Wiping member, wiping method, and image forming apparatus
Takumi Atake, Kanagawa (JP); Akira Izutani, Osaka (JP); Yohta Sakon, Kanagawa (JP); Hiroko Ohkura, Kanagawa (JP); and Yuusuke Fujita, Tokyo (JP)
Assigned to Ricoh Company, Ltd., Tokyo (JP)
Appl. No. 16/981,175
Filed by RICOH COMPANY, LTD., Tokyo (JP)
PCT Filed Mar. 6, 2019, PCT No. PCT/JP2019/008898
§ 371(c)(1), (2) Date Sep. 15, 2020,
PCT Pub. No. WO2019/176691, PCT Pub. Date Sep. 19, 2019.
Claims priority of application No. 2018-049359 (JP), filed on Mar. 16, 2018; and application No. 2018-210538 (JP), filed on Nov. 8, 2018.
Prior Publication US 2021/0016327 A1, Jan. 21, 2021
Int. Cl. B08B 13/00 (2006.01); B08B 1/14 (2024.01); B08B 3/08 (2006.01); B32B 5/02 (2006.01); B32B 5/26 (2006.01); B41J 2/165 (2006.01)
CPC B08B 1/143 (2024.01) [B08B 3/08 (2013.01); B32B 5/022 (2013.01); B32B 5/26 (2013.01); B41J 2/16535 (2013.01); B32B 2262/0253 (2013.01); B32B 2262/0276 (2013.01); B32B 2262/062 (2013.01); B32B 2307/726 (2013.01); B32B 2432/00 (2013.01); B41J 2002/1655 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A wiping member configured to wipe a nozzle surface of a liquid discharging head, the wiping member comprising:
a cleaning liquid,
a first layer configured to be brought into contact with the nozzle surface and to which the cleaning liquid is applied, and
one or more other layers,
wherein the following relation is satisfied: t1<t2, where t1 represents a thickness of the first layer and t2 represents a thickness of the one or more other layers, and
wherein a porosity of the first layer is smaller than a porosity of at least one of the one or more other layers, and
wherein the porosity of the first layer is from 0.60 to 0.85, and
wherein the porosity of at least one of the one or more other layers is from 0.80 to 0.99.