Abstract
Numerical simulation model has been proposed to predict fix strength on a xerography fuser process. Especially, the model can consider the influence of a paper surface roughness and of a toner dynamic viscoelasticity. The model is derived from the coupled simulation which consists of the structural, the fluid and the thermal simulation. The structural simulation can clarify how a fusing material fits the roughness on the paper structure. The fluid and the thermal simulation can solve the toners transitional deformation on a fuser nip and calculate a contact area between the toner and a paper, which takes into account involved factors : a toner viscoelasticity, thermo-physical properties of materials and a fusing temperature etc. The coupled method can calculate the contact area which agrees with experiments. Additionally, the results have shown that the roughness on a paper structure and the toner viscoelasticity strongly affect the fix strength.
