Patent ID: 7837292
Filing Date: 2010-11-23
Classification: B41J

Abstract:
1. A liquid ejection apparatus including a liquid ejection head, the liquid ejection head having a nozzle forming surface in which a nozzle group for ejecting liquid are formed, the apparatus comprising: a cap for sealing the nozzle forming surface; and a driving portion that moves the cap between a sealing position at which the cap contacts the liquid ejection head and a retreat position at which the cap is separated from the liquid ejection head, wherein the driving portion includes: a drive source; a rotating cam driven by force supplied by the drive source; a movable portion that supports the cap and the rotating cam and is movable along the moving direction of the cap; and a coupling member having a first end and a second end, wherein the first end is coupled to or engaged with the rotating cam at a position near an outer circumference of the rotating cam, and wherein the second end is coupled to a support portion, which is formed separately from the movable portion, wherein the rotating cam is raised or lowered while being rotated about the first end of the coupling portion, so that the cap is moved between the sealing position and the retreat position.