HP Color LaserJet Enterprise CM4540 MFP Product Series - Replace the toner collection unit

note:

The toner collection unit is designed for a single use. Do not attempt to empty the toner collection unit and reuse it. Doing so could lead to toner being spilled inside the product, which could result in reduced print quality. After use, return the toner collection unit to HP’s Planet Partners program for recycling.

1. Open the front door. Make sure that the door is completely open.
   Figure : Location of the front door
   
2. Grasp the top of the toner collection unit and remove it from the product.
   Figure : Location of the toner-collection unit
   
3. Place the attached cap over the opening at the top of the unit.
   Figure : Location of the cap
   
4. Remove the new toner collection unit from its packaging.
   Figure : New toner-collection unit
   
5. Insert the bottom of the new unit into the product first and then push the top of the unit until it clicks into place.
   Figure : Location of the toner-collection unit
   
6. Close the front door.
   Figure : Location of the front door
   

   note:

   If the toner collection unit is not installed correctly, the front door does not close completely.

   To recycle the used toner collection unit, follow the instructions included with the new toner collection unit.