電子写真粉体現像機構の一解析

抄録

In electrophotographic powder development, a simple model for the toner layer was pre-sented. Using this model, the surface potential of the toner layer was derived. Combining this toner layer model and the model for magnetic brush development presented by R. M. Schaffert, the electric field in the developing space which determines the maximum toner quantity obtained by development was computed. Equations were derived expressing the fully developed toner quantity as a function of the surface potential of the dielectric layer. Experiments were done in order to obtain some constants and to confirm the equations. Experimental results show that toner charge varies according to the toner content of the developer. The decay of surface charge by contact of conductive carriers at development was also taken into account. Experimental results were consistent with these equations.