Issue description
Initial power-up of the printer results to a 200.91B error.
Solution
Make sure that all packaging material is removed from the Imaging Unit.
To do this:
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Open the front door.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Remove the toner cartridge bottle.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Remove the Imaging Unit.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Remove any packaging material from Imaging Unit that may not have been removed, e.g., foam blanket, red shipping separator, and/or hand tag.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Reinsert all supplies and close the door.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Power on the device and it should now be READY.
Refer to this sample Video for more information.
Additional information
A covered input sensor triggers this error. It is most frequently observed when packing materials have not been fully removed and the printer is powered ON.
LEGACY ID: TE885