METHOD AND DEVICE FOR CHECKING NOZZLE OF INKJET PRINTER

摘要

Disclosed are a method and device for checking a nozzle of an inkjet printer. The checking method comprises: acquiring an electronic scanned image, wherein the scanned image is a paper printed image printed by the inkjet printer based on a checking image, and a mapping from a pixel point position to a nozzle number of the inkjet printer is preset in the checking image (step 11); analyzing the scanned image to obtain a pixel point position free of ink in the scanned image (step 12); and obtaining a corresponding nozzle number and outputting same according to the pixel point position free of ink (step 13). The present invention achieves automatic checking of a blocked nozzle, improves convenience of checking and reduces the error rate of checking.