![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Open door B. Click the link below to see image on how to open door B.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Remove the WasteToner Bottle.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Remove the imaging kit.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Open door A. Click the link below to see image on how to open door A.
Note: Hot surface! The inside of the printer is hot. To reduce the risk of injury from a hot component, allow the surface to cool before touching it.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Check the printhead and use a lint-free cloth to wipe the lenses (A); make sure to check for any toner debris.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
After cleaning the printhead, check the Oldham couplers (A) for any issues (such as missing or damaged) parts.
Note: If any of the Oldham couplers are damaged, please contact Lexmark for further Troubleshooting.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Re - install the imaging kit, and insert the waste toner bottle then close Door A and Door B.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Perform a test print and check if the issue persists. If the print quality issue still present, replace the Imaging Kit (Cyan, Magenta, Yellow, or Black) of the affected color.