| 摘要 |
A printing cylinder cleaning device of a sheet-fed printing machine. A control-cam/cam-follower is provided for transferring a cleaning unit over and above a gripping means from one outer surface portion of an impression cylinder to another outer surface portion of the latter. For the run of the cam follower onto the control cam, the throw-on pressure of the cleaning unit is reduced. Thereafter, it is increased again for the run onto the outer surface of the impression cylinder.
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