I just put a new toner and drum unit in machine . It now puts a black line on the paper edge that comes out along back of copier and it comes and goes and it is fused . I tried to clean every where I could see and reach .
What will happen if the narrator cleans the machine ?
Pick the best answer from the following options:
- The black line will go away .
 - The narrator will need to replace the toner .
 - The drum unit will need to be replaced .
 - The drum unit will become fused .


The black line will go away .