| 摘要 |
The invention relates to a method of operating an electronic engraving machine for engraving printing cylinders for rotogravure by means of a graver of an engraving element that is controlled by an engraving control signal. In order to calibrate the engraving control signal, cups (10) are engraved in a test engraving step for predetermined desired tonalities and their actual dimensions are gauged by means of a mobile gauging device (11) that is placed on the printing cylinder (1). To prevent destruction of the gauging device (11), a control device (12, 13, 14) verifies whether the gauging device (11) is placed on the printing cylinder (1) or not. If the gauging device (11) is in deed placed on the printing cylinder (1), the machine is prevented from starting the engraving process. The measured values are transmitted wirelessly to a stationary receiver of measured values (17) by the mobile gauging device (11). The control device (12, 13, 14) makes sure that wireless transmission of the measured values takes place only during the calibration phase.
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