Callout  | Item  | Callout  | Item  | 
|---|---|---|---|
[A]  | Waste Toner Full Sensor  | [C]  | Waste Toner Agitator (for ITB Cleaning Unit)  | 
[B]  | Waste Toner Agitator  | [D]  | Waste Toner Bottle Transport Coil  | 
The waste toner agitator [B] carries waste toner piled up at the front of the waste toner bottle to the rear. The agitator [C] moves together with the waste toner bottle transport coil [D].
When the waste toner full sensor [A] detects a “waste toner near full”, the machine displays an alert message on the operation panel, which prompts users to replace the waste toner bottle.