Toner Hopper Empty Detection
[A]
[B]
The toner hopper sensor [A] detects whether there is enough toner in the toner hopper. The toner hopper sensor checks for toner once when the toner supply roller clutch turns on. When there is only a small amount of toner inside the toner hopper and pressure on the toner hopper sensor becomes low, the toner hopper sensor outputs a pulse signal (once per copy). Then the toner bank mechanism supplies more toner to the toner hopper, as explained in previous sections.
Spring [B] applies development bias from the developer rollers to the lower case of the developer unit , to prevent toner from being
PTM | B070/B071 |
