Replacing the Brother HL 1240 toner cartridges

Replacing the Brother HL 1240 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 you Brother HL 1240 toner cartridges.

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

Removing the used Brother HL 1240 toner cartridge

1. Press the release button, and open the frontal cover.

2. Remove the old Brother HL 1240 toner cartridge from the developer.

3. Clean the Cable inside the top of the developer by carefully moving the blue handle from right to left a few times. Put the handle back in position after installing the Brother HL 1240 toner cartridge in the developer.

4. Push down the block lever and then remove the Brother HL 1240 toner cartridge from the Developer.

Installing the new Brother HL 1240 toner cartridge

5. Unpack the new Brother HL 1240 toner cartridge, keep it in a horizontal position, shake it firmly five or six times.

6. Remove the protection.

7. Install the new Brother HL 1240 toner cartridge in the developer until a click shows you that it is on the correct site. When the cartridge is correctly installed, the block lever pulls up automatically.

8. With a dry and soft cloth, clean slightly the sweep window.

9. Install again the developer and close the cover.

 

 

Replacing the Brother HL 1240 Drum Unit

Replacing the Brother HL 1240 Drum Unit is a very important part of printing successfully. A bad installation can cause problems that go from bad printing quality to damaging the drum unit or other printer parts.
Here are some easy steps that you can use to remove used Drum Unit and install a new one without damaging your printer or you Brother HL 1240 Drum Unit.

Before start replacing the Brother HL 1240 Drum Unit keep in mind the following safety recommendations:

CAUTION:

• - Do not burn or throw used Drum Units or 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
• - Be careful and don't inhale the toner

Removing the used Brother HL 1240 drum unit

1. Open the front cover. Pull out the Brother HL 1240 drum unit assembly.

2. Place the drum unit assembly containing the old toner cartridge on a flat, horizontal surface, and pull the toner cartridge out of the Brother HL 1240 drum unit assembly while pushing the lock lever down with your right hand.

Installing the new Brother HL 1240 toner cartridge

3. Unpack the new Brother HL 1240 drum unit.

4. Install the new Brother HL 1240 toner cartridge into the drum unit until it locks into place, indicated by a click. When the toner cartridge is installed correctly, the lock lever is lifted automatically.

5. Install the Brother HL 1240 drum unit assembly into the printer.

6. Reset the page counter referring to the instructions supplied with the new Brother HL 1240 drum unit.

7. Close the front cover and make sure that the Drum LED is now off.