TONER LAYER FORMING DEVICE

摘要

PURPOSE:To form a uniform layer on a toner carrier by arranging fixed magnets which have the same polarity at the rear surface side of the toner carrier, and positioning a toner layer control member in a repulsive magnetic field formation area formed by the fixed magnets. CONSTITUTION:The toner carrier 11 while rotating as shown by an arrow A carries magnetic toner on its surface to a development position. A toner layer thickness control member 12 is arranged over the toner carrier 11 at the upstream side of the development position at specific distance. The fixed magnets 13 and 14 which have the same polarity are arranged adjacently at the rear surface side of the toner carrier 11 and the toner layer thickness control member 12 is arranged in the repulsive magnetic field formation area H formed by those fixed magnets 13 and 14.