Tools
- 
                  
                  - 
            Grasp the powder compartment cover firmly and pull it upwards out of its hinges. Otherwise it will be in the way of the top cover. 
- 
            Pull the top cover back about 1 cm. If it sticks in front, you can help a little with plastic levers. 
- 
            Lift the top cover away from the top. 
 
- 
            
                            
                            Conclusion
                          
                          Follow the steps in reverse order to reassemble your device