Patent ID: 7360854

Claim:
An ink jet recording apparatus, comprising: a conveying mechanism configured to sequentially convey a plurality of recording sheets in a predetermined conveying direction; a detector comprising a light source for irradiating light on a surface of the recording sheet and a light-receiving element for receiving reflected light from the recording sheet, wherein the detector is configured to detect at least one edge position of each of the plurality of recording sheets when the conveying mechanism conveys each of the plurality of recording sheets to a predetermined position; an ink jet recording head configured to eject ink droplets on each of the plurality of recording sheets; a scanning carriage configured to move in a main scanning direction orthogonal to the conveying direction, wherein the detector and the ink jet recording head are mounted to the scanning carriage; a determining unit configured to determine at least one characteristic of each of the plurality of recording sheets; a storing unit configured to store the at least once edge position of each of the plurality of recording sheets and the at least one characteristic of each of the plurality of recording sheets, wherein an image is recorded on each of the plurality of recording sheets when ink droplets are ejected from the ink jet recording head while the conveying mechanism conveys the recording sheets and the scanning carriage moves in the main scanning direction; and a controller, wherein when at least one predetermined condition associated with the plurality of recording sheets is satisfied, the controller is configured to control the ejection of ink droplets on at least one subsequent recording sheet, which sequentially is conveyed after a last of the plurality of recording sheets is conveyed, based at least on the at least one edge position of each of the plurality recording sheets and the at least one characteristic of each of the plurality of the recording sheets.