![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Open the front door.
CAUTION—HOT SURFACE: The inside of the printer might be hot. To reduce the risk of injury from a hot component, allow the surface to cool before touching.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Open the top door.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Lift the toner cartridge handle, and then gently pull it from the imaging kit.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Remove the right side cover.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Press the green levers on each side of the waste toner bottle, and then remove the waste toner bottle.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Lift the blue levers on the imaging kit, and then pull the imaging kit until it stops.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Press down the blue lever, and then grasp the green handles on the sides to pull out the imaging kit.
Warning—Potential Damage: Do not touch the underside of the imaging kit. Doing so could damage the imaging kit.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Remove the used developer unit.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Gently shake the replacement developer unit side‑to‑side before removing it from its packaging.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Remove the red shipping cover from the developer unit.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Insert the developer unit.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Align and then insert the imaging kit.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Gently but firmly push the blue levers down until the imaging kit fits into place.
Note: Make sure that the imaging kit is fully seated.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Replace the waste toner bottle.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Insert the right side cover.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Insert the toner cartridges.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Slide and hold the release latch on the right side of the printer, and then slowly close the top door.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Close the front door.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Seal the used developer unit in the bag that the replacement developer unit came in.
For more information, see Recycling Lexmark products.