Follow the steps below to replace the waste toner box.
 

1. Make sure that the machine is turned on.
2. Press the front cover release button and then open the front cover.
   
   
    
3. Hold the blue handle of the drum unit. Pull the drum unit out until it stops.
   
   
    
4. Turn the blue lock lever (1) at the left of the machine counterclockwise to the release position. Holding the blue handles of the drum unit, lift the front of the drum unit and remove it from the machine.
   
   
    
5. Hold the blue handle of the belt unit with both hands and lift the belt unit up, and then pull it out.
   
   
    
6. Remove the two pieces of orange packing material and discard them.
   
   
    
7. Hold the blue handle of the waste toner box and remove the waste toner box from the machine.
   
   
    
8. Unpack the new waste toner box and install it in the machine using the blue handle. Make sure the waste toner box is level and fits firmly into place.
   
   
    
9. Slide the belt unit back into the machine. Make sure the belt unit is level and fits firmly into place.
   
   
    
10. Make sure the blue lock lever (1) is in the release position as shown in the illustration.
    
    
     
11. Gently slide the drum unit into the machine until it stops at the blue lock lever.
    
    
     
12. Turn the blue lock lever (1) clockwise to the lock position.
    
    
     
13. Push the drum unit in until it stops.
    
    
     
14. Close the front cover of the machine.