| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a detection device capable of determining minute contaminations or scratches on a liquid ejection surface at high speed and with high accuracy, and to provide a liquid ejecting apparatus, a method for detecting abnormal conditions on the liquid ejection surface, and an inkjet head maintenance method. <P>SOLUTION: The detection device includes: capturing an image on the liquid ejection surface (16A) while relatively moving an area sensor (80) with a plurality of sensors and an inkjet head (16); deciding the presence of the abnormal conditions and the position of the abnormal conditions of the liquid ejection surface, based on an imaging signal obtained from a portion of sensor row (80A) of a plurality of sensor rows; capturing the image of the position of the abnormal conditions again when deciding the presence of the abnormal conditions on the liquid ejection surface; and deciding the abnormal conditions, based on the imaging signal obtained from all sensor rows of the area sensor. <P>COPYRIGHT: (C)2013,JPO&INPIT |
