| 摘要 |
PROBLEM TO BE SOLVED: To provide a gravure printing plate engraving stylus monitoring device as a means to objectively judge a gravure printing plate engraving abnormality attributed to a stylus abnormality, by which a variability of judgement which is unavoidable in empirical judgement through a conventional visual observation, is eliminated and the timing of replacing a stylus is forecast and a monitoring method. SOLUTION: This gravure printing plate engraving stylus monitoring device comprises at least an image photographing means for photographing engraving cells formed on the surface of a gravure printing plate and obtaining image data and a cell-shape arithmetic means which seeks the ratio between the peripheral length and the area of a cell based on the image data and compares the obtained ratio to a normal value and judges the comparison results and the monitoring method is provided.
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