| 摘要 |
PURPOSE:To replenish uniformly a toner by constituting the titled device so that an engaging member is engaged to the driving transfer part of a toner replenishing member, when the content ratio of the toner in a developer in a developing device decreases and the fluidity of the developer becomes good. CONSTITUTION:When the toner density of a developer becomes short, an engaging member 38 works and turns a toner replenishing member. Also, the driving system of a toner replenishing member also becomes the object of a load, therefore, the engaging member is detached in a short time and the toner replenishing member stops, and as a result, a load becomes light, therefore, immediately the engaging member contacts to a transfer wheel 23, and the toner is replenished again. It is repeated, and an exact and precise toner replenishment is executed little by little. In this way, the developer having an uniform toner density is recovered, and the toner replenishment is always secured stably and with the high reliability by keeping the operation of such a state. |
