Patent ID: 7677719
Filing Date: 2010-03-16
Classification: B41J

Abstract:
1. An inkjet recording apparatus comprising: a holding member including a holding face which holds a recording medium; an inkjet head including a plurality of nozzles, which are arranged along a predetermined direction correspondingly with a predetermined resolution on an ink ejection face opposed to the holding face, the ink ejection face has a rectangular shape in which a longitudinal direction is parallel to the predetermined direction; a first moving mechanism which performs a first movement of moving at least one of the inkjet head and the holding member in a direction perpendicular to the predetermined direction; a second moving mechanism which performs a second movement of moving the holding member in the predetermined direction; a first movement controlling unit which controls the first moving mechanism to, during a printing operation on one recording medium, perform the first movement two times including first and second times, in the second time the inkjet head and the holding member being moved in directions that are opposite to directions in the first time; a second movement controlling unit which controls the second moving mechanism to, during the printing operation on one recording medium and after the first movement for the first time, perform the second movement by a distance which is one half of a distance corresponding to the predetermined resolution; and a print controlling unit which, during the first movement, controls the inkjet head to eject an ink toward the recording medium; a transporting mechanism which transports the recording medium to the holding face; a positioning unit which selectively transitions between a positioning-enabled state, where positioning of the recording medium on the holding face is enabled, and a positioning-canceled state; a detecting unit which, when the positioning unit is in the positioning-enabled state, detects that the recording medium is positioned at a predetermined position by the positioning unit; a positioning controlling unit which controls the positioning unit to take the positioning-enabled state; and a transport controlling unit which controls the transporting mechanism to transport the recording medium to the holding face, and, when the detecting unit detects that the recording medium is positioned, stops the transport of the recording medium, wherein nozzles, which are positioned respectively at both ends of a nozzle row configured by the plurality of nozzles, are placed outside the recording medium held by the holding member with respect to the predetermined direction, and wherein a direction in which the transporting mechanism transports the recording medium, and the direction in which the first movement of at least one of the inkjet head and the holding member is performed by the first moving mechanism are perpendicular to each other in a plan view in a direction perpendicular to the holding face.