| 摘要 |
1511199 Cleaning moving surfaces XEROX CORP 17 Dec 1976 52774/76 Heading B6C A surface, e.g. of a photoconductive drum, is cleaned while moving in one direction relative to a cleaning blade in engagement therewith and during rest periods of no relative motion the blade is moved out of contact with the surface. Following each rest period the blade is returned into contact with the surface at a position downstream of the position from which it was moved out of contact therewith. A solenoid actuated cam guides the movement of the blade.
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