Patent ID: 8757761
Filing Date: 2014-06-24
Classification: B41J

Abstract:
1. An ink-jet application apparatus comprising: an upstream side guide roller which pays out and conveys a roll-like film; a suction table which adsorptively holds the paid-out film; an application head which applies a liquid coating material on the film adsorptively held by the suction table; and a downstream side guide roller which conveys the film coated with the coating material and winds up the film like a roll, wherein: an image-capturing camera for capturing an application target area is disposed so as to be adjacent to the application head and integrated with the application head in terms of position of installation to thereby form an application head unit portion; the application head unit portion is moved above the suction table by a three-dimensionally movable XYZ-direction driving unit; and control means for operating the ink-jet application apparatus such that firstly, the image-capturing camera moves in a direction orthogonal to a conveying direction of the film and captures an image of an application target area on the film only once initially in a series of operations, and before the application head moves to an application start position of the application target area, the image captured by the image-capturing camera is processed to calculate a correction value at application time based on a displacement quantity from a visual field center of the image-capturing camera, and thereafter the correction value is reflected on a position where the coating material should be applied originally and the application head is moved thereto; next, the image-capturing camera moves in advance and captures an image of a position where the coating material will be applied next at a same time of an applying operation of the application target area due to the application head that is arranged in the position where the coating material should be applied originally; and while the application head moves to an application target area where the coating material will be applied next, a result of image-capturing due to the image-capturing camera is processed by an image processing unit to thereby correct a displacement quantity from an originally set application position and a processing operation of moving the application head to the position where the coating material will be applied next and on which a correction value is reflected is performed and repeated in accordance with each application target area.