To reduce toner scatter, the surface of the development roller and the ratio of small powder-to-toner have been changed.
The surface of the new roller [1] is rougher than the surface of the previous roller [2]. The rougher surface prevents excessive toner from adhering to the surface of the roller. To enhance this change, the ratio of small powder- to-toner [3] for the new machine is much lower than the amount of small powder for the previous machine [4]