| 摘要 |
<p>1432130 Electro-photography ING C OLLIVETTI & C SpA 26 June 1974 [9 July 1973] 28394/74 HeadingG2H A copying machine comprises a motor, a first transport system actuated by the motor for transporting an original along a scanning zone 96 past an illuminating system 91, a second transport system actuated by the motor for transporting a photo-conductive copy sheet fed from a feed station 44 through a corona-effect electrostatic charging device 27 and through an exposure zone 93 at which an image of the original is formed by an optical system 92, means for synchronizing the movement of the said first and second transport systems and for co-ordinating the actuation of the charging device 27 and the illuminating system 91 with the movement of the first transport system, the said means being constituted by first, second and third integral cams actuated by the motor, a clutch device controllable into a first operative position of transmission of the motion from the motor to the cams and into a second position of non-transmission of the motion from the motor to the cams, a key coupled to the clutch device for controlling the same into its first operative position and for activating the corona charging device 27, means actuated by the second cam for transmitting the motion from the motor to the first transport system and for activating the illuminating system 91, actuating means actuated by the first cam and controlling the clutch device into the second operative position, and second actuating means actuated by the third cam for feeding the copy sheet to the second transport system. The copy sheet may be fed from a roll 52 from which it is cut-off by a cutter 46, or single sheets may be fed into the machine on a withdrawable tray 47.</p> |
