"The uniformly charged surface is exposed by suitable exposure means, such as a laser 206B, C, M and Y, respectively or more preferably a light emitting diode array or other electro-optical exposure device or even an optical exposure device to selectively alter the charge on the surface of the outer sleeves 265B, C, M and Y, of the PIFM 203B, C, M and Y to create an electrostatic latent image corre" . . . . .