The allocation of time: empirical findings, behavioral models and problems of measurement

A method of imaging wherein an electrically photosensitive imaging layer comprises electrically photosensitive fundamental alpha metal-free phthalocyanine particles greater than 1 micron in size. The imaging layer is placed between two members and imagewise exposed to an electric field and electromagnetic radiation to which the electrically photosensitive particles are sensitive. Upon separation of the members exposed particles of the layer are independently removed from the layer in imagewise configuration thereby forming a copy of the original image on one of the sheets. Production of polychromatic and monochromatic images is enhanced by control of the fundamental particle size.