When the toner end sensor detects that there is no toner in the toner sub hopper:
- The bottle motor switches on for 1 sec. and rotates the toner bottle. This dumps more toner into the sub hopper.
- If the toner end sensor cannot detect toner in the sub hopper after 650 continuous rotations of the toner bottle, then the bottle is judged to be empty. When the bottle on the right is judged empty, toner supply switches to the bottle on the left.
- When both bottles are judged to be empty, or if only one toner bottle is installed and it is judged to be empty, the machine displays the near-end alert on the operation panel.
- Once the near-end alert appears, the machine can continue operating for approximately 1000 prints (A4 with 6% coverage), and then the toner end alert appears and the machine stops.
Toner Flow from Toner Bottle to Sub Hopper