Patent ID: 7717529
Filing Date: 2010-05-18
Classification: B41J

Abstract:
1. An image recording apparatus comprising: a medium-convey belt which conveys a recording medium; a recording head having an ejection surface in which a plurality of ejection openings for ejecting liquid are provided and which faces a surface of the medium-convey belt; an image sensor being integral with the recording head and being movable together with the recording head, and including an image-pickup element, a light-entering surface which faces the surface of the medium-convey belt, and which is more distant from the surface of the medium-convey belt than the ejection surface of the recording head, and an image-forming optical system which guides, to the image-pickup element, a light entered through the light-entering surface and which is for forming, on the image-pickup element, an optical image of an object, a raising and lowering mechanism which positions the recording head at a selected one of a plurality of heights including a first height and a second height, wherein the first height is a height at which the ejection surface is distant from the surface of the medium-convey belt, and the optical image of an image, as the object, recorded on the surface of the medium-convey belt or recorded on the recording medium on the medium-convey belt is formed on the image-pickup element by the image-forming optical system, and wherein the second height is a height at which the ejection surface is more distant from the surface of the medium-convey belt than at the first height; and a controller configured to execute controls for operations of the image recording apparatus, wherein the controller includes: