Replacing the Brother HL 4150cdn toner cartridges is a very important part of printing successfully. A bad installation can cause problems that go from bad printing quality to damaging the toner cartridges or other printer parts.
Here are some easy steps that you can use to remove the used toner cartridges and install the new ones without damaging your printer or your toner.

Before start replacing the toner cartridges keep in mind the following safety recommendations:

CAUTION:

• - Do not burn or throw used toner cartridges into open flames, as this may cause a fire
• - If toner gets onto your hands or clothing, wash it off immediately with cold water. Do not use warm water as this may set the toner permanently, and you may not be able to remove the toner stains