Patent ID: 7374270
Filing Date: 2008-05-20
Classification: B41J

Abstract:
1. A liquid droplet ejection apparatus for performing a drawing operation on a workpiece set on a set table by moving a head unit including a functional liquid droplet ejection head having a plurality of ejection nozzles in a scanning direction relative to the set table and by driving the ejection nozzles to eject functional liquid on the workpiece facing the head unit, the apparatus comprising: an ejection-defect test unit for inspecting an ejection defect of the functional liquid droplet ejection head, the ejection-defect test unit comprising a drawn unit on which a predetermined test pattern is drawn by test ejection from all of the ejection nozzles of the functional liquid droplet ejection head and ejection-defect determination means for determining an ejection defect of the functional liquid droplet ejection head by capturing an image of the test pattern drawn on the drawn unit and recognizing the image; and a scan moving table comprising a slider for supporting the set table and the drawn unit, the scan moving table moving the set table and the drawn unit in the scanning direction relative to the head unit; wherein the drawn unit is disposed on a scan moving axis offset from the set table towards the scanning direction.