18911744. INK JET PRINTER (KEYENCE CORPORATION)
INK JET PRINTER
Organization Name
Inventor(s)
Kentaro Yamazaki of Osaka-shi JP
INK JET PRINTER
This abstract first appeared for US patent application 18911744 titled 'INK JET PRINTER
Original Abstract Submitted
An ink jet printer includes: a nozzle configured to eject ink toward a drawing target object; a storage unit that stores drawing data specifying an ejection timing of the nozzle at each of a plurality of offset positions, the ejection timing corresponding to drawing information; an optical movement measurement sensor that receives light from the drawing target object and generates a measurement value related to movement of the drawing target object in the conveyance direction based on the received light; a drawing control unit that controls ink ejection from the nozzle based on a current offset position based on the measurement value, and the drawing data; an evaluation unit that evaluates reliability of measurement by the optical movement measurement sensor; and an abnormality processing unit that executes an abnormality process when the reliability evaluated by the evaluation unit does not satisfy a predetermined criterion.