The Role of the Electric Field in Triboelectric Charging of Two-Component Xerographic Developers

摘要

The role of the electric field at the toner-carrier interface must be considered to understand the triboelectric charging mechanisms of two-component xerographic developers. The interfacial electric field is the result of the charge exchanged during repeated contacts between toner particles and carrier beads. We present a refinement of our previous model for the interfacial electric field; the new model includes multiple layers of toner on a carrier bead and treats the surface charge distribution on each toner particle as discrete, rather than continuous. We find good agreement of the refined model with the measured dependence of toner charge-to-mass ratio on toner concentration. Finally, we discuss the relation between the single fittable parameter, A_o, and the characteristic energy levels of the component materials.