Abstract
Toner particle packing in an electrophotographic image has been examined for typical packing geometries including unit and primitive cell structures. In deriving the most probable packing, the force acting on the toner particle is analyzed. The requirement that the downward force on the substratum be greater than the upward force is satisfied in any packing geometry. The potential energy of the cell is also analyzed. The smaller potential energy and the more likely packing geometry occurs in the unit cell structure and in the higher ratios of particle gap to radius, L/r. Because of the contribution to the fixing process in an electrophotographic technology, relations between the heating of the material and the packing geometry have been examined. Using a finite element method, the temperature field in a simplified one-dimensional three-particle packed layer is calculated. As L/r increases, the inner temperature in the layer increases because of absorption at the second particle sublayer. The best packing condition for the fixing process, in which minimum surface and maximum interface temperatures are obtained, is the maximum L/r in the unit cell structure.
Published Version
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