| 摘要 |
<p>Provided is a discharge liquid inspecting method comprising a step of photographing a first discharge liquid, which is discharged from a nozzle and along a reference trajectory, by operating a camera; a step of determining a cross line, which is on a first image of the first discharge liquid received from the camera and intersects with the reference trajectory, by operating a reference determining part; a step of photographing a second discharge liquid, which is discharged from the nozzle, by operating the camera; a step of receiving a second image of the second discharge liquid from the camera by operating a calculating part, and calculating the brightness value of the second discharge liquid along the longitudinal direction of the cross line from the image of the second discharge liquid; and a step of estimating the discharge state of the second discharge liquid based on information about the brightness value received from the calculating part by operating an estimating part, wherein the image of the second discharge liquid is positioned on a point which is on the second image and which corresponds to the cross line.</p> |
