| 摘要 |
PURPOSE:To make easy conversion between a positive image and negative image in analog image processing with simple constitution by dividing a photoconductive layer on a conductive substrate to many cell bodies by conductive films and charging the adjacent cell bodies to the electrostatic charge polarities different from each other. CONSTITUTION:The photoconductive layer 2 is formed on the conductive substrate 1 consisting of aluminum, etc. and is segmented by the conductive films 3 to the many regular triangular cell bodies. The positive-charged cells P which consist of phthalocyanine, etc., and are charged with positive charge by a main electrostatic charger and the negative-charged cells N which consist of zinc oxide, cadmium sulfid, etc., and are charged with negative charge are thus alternately arranged. The conversion between the negative and positive images is easily executed by changing the polarities of the voltage to be impressed to the charger without using intricate means for converting toners or changing the polarities of the voltage to be impressed to a transfer charger if the many P-type cells and N-type cells are alternately arranged in the above-mentioned manner. |
