Subclass 5/028: Recording-members for original recording by exposure e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor (recording surfaces for measuring apparatus G01D 15/34; photosensitive materials for photographic purposes G03C) Charge-receiving layers (G03G 5/153 takes precedence) Layers in which after being exposed to heat patterns electrically conductive patterns are formed in the layers, e.g. for thermoxerography