US 11,654,685 B2
Maintenance method and maintenance liquid
Akira Mizutani, Matsumoto (JP); and Yuta Asakawa, Azumino (JP)
Assigned to SEIKO EPSON CORPORATION
Filed by Seiko Epson Corporation, Toyko (JP)
Filed on Mar. 3, 2021, as Appl. No. 17/190,509.
Claims priority of application No. JP2020-035591 (JP), filed on Mar. 3, 2020; and application No. JP2020-057362 (JP), filed on Mar. 27, 2020.
Prior Publication US 2021/0276334 A1, Sep. 9, 2021
Int. Cl. B41J 2/165 (2006.01); C09D 11/54 (2014.01)
CPC B41J 2/16552 (2013.01) [C09D 11/54 (2013.01); B41J 2002/16558 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A maintenance method for an ink jet recording apparatus that performs recording using an ink composition and a treatment liquid containing a coagulant,
wherein the ink jet recording apparatus has an ink jet head for ejecting the ink composition,
the method comprises a wiping step of wiping a nozzle-forming surface of the ink jet head with a maintenance liquid and an absorbent wiping member, and
the maintenance liquid contains water that constitutes 80% or more by mass of a total mass of the maintenance liquid, and
the maintenance liquid contains an organic solvent that constitutes 0.5% to 5% by mass of the total mass of the maintenance liquid.