Patent ID: 9597877
Date: 2017-03-21
CPC Classifications: B41J

Claim:
1. An ink jet recording apparatus comprising: a recording head provided with a nozzle forming surface provided with nozzles which discharge an ink composition containing inorganic pigments, and a liquid repelling film which is provided on the nozzle forming surface, the liquid repelling film being monomolecular, having a thickness of 1 nm or more and 30 nm or less, and including a metal alkoxide; a maintenance unit for preserving the recording head; and a movement section which is arranged at a position which faces the nozzle forming surface and the maintenance unit and which relatively moves the nozzle forming surface and the maintenance unit, wherein the maintenance unit has a cleaning liquid applying unit which applies a cleaning liquid to the nozzle forming surface, an absorbing member which absorbs attachments which are attached to the nozzle forming surface, a wiping unit which presses the absorbing member and the recording head with a load of 8 gf/cm or more to 150 gf/cm or less, the wiping unit having a driving mechanism which wipes off attachments on the nozzle forming surface by relatively moving the absorbing member with respect to the nozzle forming surface, a first capping section which covers the nozzle forming surface and which is provided with a suction mechanism which suctions the ink composition which is present on the nozzles, and a second capping section which forms a closed space by coming into contact with the nozzle forming surface.