only then the electrostatic latent images are toner developed at the developing unit 11 and the developed toner images are transferred by the transfer corotron 37 to the copy paper fed from the sheet feed cassette 20 thus the copy paper on which the toner images are transferred is peeled off by the peel off pawl 30 from the photosensitive drum 4 and heated and pressurized by the fixing unit and thereafter discharged onto the sheet discharge tray 53 in addition the residual charge and toner which is not transferred to the copy paper but remains on the photosensitive drum 4 are removed therefrom by the erase lamp 58 and cleaning unit 54 respectively in the abovementioned electrostatographic apparatus the center of gravity thereof is positioned apart rightwardly from the dimensional center of the body 1 by a dimension a fig2 is a schematic front view of the electrostatographic apparatus of a type of being out of the original support plate 2 forwardly by a dimension b and backwardly by that c from the body 1 in which a relation of b gt c holds and the center of gravity g of body 1 is biased by a dimension a rightwardly from the dimensional center of body 1 in addition internal construction of the apparatus shown in fig2 is same as fig1 embodiment now in such photostatographic apparatus originals 71 larger in thickness are placed on the original support plate 2 to start the copying as shown in fig3 a through c in this case the center of gravity of originals 71 is positioned at a point p the point p when the plate 2 slides out leftwardly from the.