![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Open door B and remove the toner cartridges by pressing the four green buttons for each color.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Open the lower side cover by pressing the C-labeled blue button and remove the waste toner bottle.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Lift the blue levers to unlatch the imaging unit basket, then remove it.
Note: Set the imaging unit on a flat and level surface.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Open the front door A. Push the gray finger tab to unlatch the transfer module and carefully pull it out.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Press the second toner contact for the transfer module.
Did the contact spring back into place?
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Reinstall the transfer module and close front door A.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Reinstall the imaging unit and make sure that the two blue latch levers are in the full down position. Reinstall the toner cartridges and close the C blue button and upper cover B. Run a few print jobs to see if the performance improves.