No.  | Name  | 
|---|---|
1  | Cleaning Unit HP Sensor  | 
2  | Wire Cleaner  | 
3  | Charge Wire Cleaner Motor  | 
The charge unit uses a wire cleaning system to keep the charge corona wires clean and free of dust that can cause uneven charging of the drum service and lead to poor image quality.
- When the wire cleaner motor switches on, the wire cleaning pads move from rear to front along the wires to clean the wires and grid.
 - After cleaning, the cleaning pads move to the cleaning pad HP sensor and then stop.
 - The charge corona wires are cleaned automatically after every 6,000 printed pages. Or, the operator can clean them manually at any time.