Patent ID: 8277022

Claim:
Method of operating a fluid ejection apparatus for ejecting a fluid, comprising: a head for ejecting the fluid; a moisture retention head cap device for retaining moisture of the head; a wiper for wiping the fluid adhered to an ejection surface of the head; and a wiper moisture retention unit for retaining moisture of the wiper, wherein the moisture retention head cap device is disposed so as to surround a periphery of the head to cover the whole of the head when retaining moisture of the head, and wherein the wiper moisture retention unit is (i) equipped with a wiper enclosure portion for surrounding a periphery of the wiper, and (ii) disposed so that the wiper enclosure portion is made contact with a bottom surface of the moisture retention head cap device when retaining moisture of the wiper, comprising steps of: (i) step of forming first approximately sealed space between the moisture retention head cap device and the wiper moisture retention unit; (ii) step of forming second approximately sealed space between the bottom surface of the carriage and the moisture retention head cap device, while maintaining the first approximately sealed space; (iii) step of transiting to power-off state or waiting state.