Numerical simulation of toner jet method for nonimpact printing

The toner jet method has been previously proposed to perform electrophotographic nonimpact printing easily. To clarify the fundamental properties of this method, the jet behavior of toner is studied through simulation on a personal computer. The mesh electrode is assumed to be inserted halfway between the development roller and the paper-back electrode. This is done to control the locus and the distribution path of toner from the magnetic development roller electrode to the electrode on the back of the paper receiver. The electric field applied between the magnetic development roller and the paper-back electrode is higher than the field between the mesh electrode and the magnetic development roller. The locus and the distribution of toner particles developed on the paper are simulated by changing the applied voltage in each row and each column of the mesh electrode. It is assumed that the jet behavior of toner particles from the magnetic development roller to paper is controllable. In conclusion, the useful role of the mesh electrode in the image quality of the toner jet method is suggested.