Affected Products:![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Single-function: C2425, CS43x
Multifunction: MC2425, CX43x
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Issue Description:
Waste Toner Bottle (WTB) will not be correctly calibrated after controller card replacement.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Solution:
To ensure the accuracy of waste toner level detection, calibrate the sensor (waste toner bottle)
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Enter the Diagnostics Menu, and then navigate to: Printer Setup > Waste toner sensor calibration.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Remove the waste toner bottle.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Select Start calibration. If the calibration is successful, then a "Test Passed" message should appear on the display.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Install the waste toner bottle, and then restart the printer.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Still Need Help?
Have the following available when calling Lexmark Technical Support;
- Printer model(s)
- Printer serial number
- Toner/imaging unit/waste toner bottle part number and serial number
LEGACY ID: TE943