DEFECTIVE NOZZLE ESTIMATION DEVICE, DEFECTIVE NOZZLE ESTIMATION METHOD, DEFECTIVE NOZZLE ESTIMATION PROGRAM, PRINTING DEVICE, AND METHOD FOR MANUFACTURING PRINTED MATTER

Provided are a defective nozzle estimation device, a defective nozzle estimation method, a defective nozzle estimation program, a printing device, and a method for manufacturing a printed matter, with which a defective nozzle is estimated in a short time. A position of an image defect of a printed matter caused by a defective nozzle in imaging data based on a captured image in which the printed matter is imaged by a scanner is acquired, a first pixel value at the position of the image defect of the imaging data is acquired, a second pixel value at a position corresponding to the position of the image defect of reference data is acquired, and at least one defective nozzle candidate, which is a cause of the image defect of the printed matter, is estimated from the first pixel value and the second pixel value using a learning model.