HL-4140CN
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Calibrate
Calibration failed. Do one of the following to clear the message:
- Turn off the machine. Wait a few seconds, then turn it on again.
- Put in a new drum unit. (Click here to see the details of how to replace the drum unit.)
- Put in a new belt unit. (Click here to see the details of how to replace the belt unit.)
- Put in a waste toner box. (Click here to see the details of how to replace the waste toner box.)
If the problem continues, please contact Brother Customer Service from "Contact Us".