Compatible Brother TN421 Toner Cartridges KCMY 4-Pack

Page Yield: BK: 3,000; CYM: 1,800

£69.99 inc VAT

£58.33 exc VAT
In stock
In stock

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This product is guaranteed to work with below printers:

Brother HL

Brother DCP

Brother MFC

Compatible Brother TN421 Toner Cartridges KCMY 4-Pack Description

Have you ever worried about your toner cartridges running out frequently? Now, we bring you a cost-effective Brother TN-421 multipack toner cartridge containing four colours: cyan, yellow, magenta, and black. It can meet your printing needs and avoids the hassle of frequent replacement.

Benefits Of The Compatible Brother TN 421 Toner Cartridge


Our compatible Brother TN-421 multipack performs the same as the original cartridge. However, it offers advantages over original toner cartridges, saving you money while enjoying high-quality printing. In addition, you can also see on our website that most of our users have recognized and praised Brother Toner TN 421, which is the best proof of our quality!

High Capacity

Our Brother TN-421 toner multipack cartridges are affordable, and the page yield is comparable to the original cartridges. The Brother TN421BK has a capacity of 3,000 pages, and the Brother TN421C/M/Y has a capacity of 1,800. No matter what you need to print, they can easily handle it. You will save time and effort by not having to change the toner cartridge as often.

Excellent Service

Our professional customer service team will provide you with the best service. If you have problems with Brother TN-421 toner multipack, you can consult us by online chat, email, or phone. Our team will respond quickly to provide solutions and guarantee 100% customer satisfaction. At the same time, we also offer convenient payment methods and money-back guarantee services to ensure your peace of mind.

Good Package

We understand the importance of packaging sealing, so we strictly adhere to the highest standards in the production process. Our Brother toner TN 421 cartridge packaging is made of the highest quality materials to minimize packaging breakage and powder leakage. It is almost impossible for you to receive a broken package.


Our compatible Brother toner TN-421 cartridge is designed to work seamlessly with your Brother printer. It can print as smoothly as the original toner cartridge without compatibility issues. Besides, it will not damage your Brother printer or void your printer warranty, making your printing work more worry-free! In addition, the Brother TN 421 toner cartridge fits many Brother printer models, such as Brother HL-L8360CDW, HL-L8260CDW, DCP-L8410CDN, DCP-L8410CDW, MFC-L8690CDW, and MFC-L8900CDW.

Frequent Asked Questions About Compatible Brother TN-421 Multipack

How To Install The Brother TN-421 Toner Multipack Cartridge?

Step1 Preparation

Before installing the Brother TN 421 toner cartridge, we need to do the following preparations:

1. Ensure the Brother printer and toner cartridge models match to avoid incompatibility.

2. Turn off the Brother printer and unplug the power cord to ensure safety during installation.

3. Prepare a new Brother toner TN421 cartridge and basic tools such as gloves, tweezers, and paper towels.

Step 2 Turn On The printer

We need to open the front cover of the printer to access the Brother TN 421 toner cartridge. The steps are as follows:

1. Open the front cover of the printer, usually located at the top or front of the printer.

2. Locate the old toner cartridge, usually at the bottom or centre of the printer.

3. Remove the old toner cartridge, usually by gently flicking the tabs on the cartridge.

Step 3 Install The New Brother TN 421 Toner Cartridge.

1. Open the new toner cartridge package and check for damage or contamination.

2. Carry out the Brother toner TN 421 cartridge and gently shake it a few times to ensure the powder inside is evenly distributed.

3. Gently flick the tab on the toner cartridge and insert it into the printer.

Step 4 Turn Off The Printer

We have successfully installed the new Brother TN-421 multipack; the next step is to turn it off and test it.

1. Ensure the new toner cartridge is fully installed, and the tabs are secure.

2. Close the front cover of the printer and plug in the power cord.

3. Turn on the printer and perform a test to ensure that the printer is working properly.

What Should I Do If I Get an Error Printing With A Brother TN421 Toner Cartridge?

If the printer fails to print after replacing the Brother TN421 toner cartridge multipack, here are some possible solutions:

1. Check if the Brother toner TN421 cartridge is properly installed and there are no signs of looseness.

2. Check the compatibility of the Brother toner TN-421 cartridge; Make sure the toner cartridge you are using is compatible with your Brother printer.

3. Check if the Brother printer is properly connected to your computer or mobile device. If the connection is disconnected or poor, the printer may be unable to print.

4. Clean the printer; Sometimes, dust or paper eyebrows in the printer may affect the print quality. You can clean the printer to solve the problem.

If you have tried all the above solutions and the error persists, you can contact our customer service team for professional help.

How To Disposal The Expired Brother TN 421 Toner Cartridge?

The expired Brother TN 421 toner cartridge can be disposed of in several ways.

1. Reuse: The expired toner cartridges can be reused. For example, it can be cleaned and used to print test pages or other printing types. This practice can reduce waste and also save some money.

2. Environmental protection: For the expired or used Brother TN-421 toner cartridges that can not be used, you can treat them as waste for environmental protection. For example, you can send them to a specialized waste treatment centre for incineration or landfill treatment to ensure that it does not cause pollution to the environment!

Regardless of which way to dispose of expired cartridges, it is necessary to pay attention to the standardization and safety of the environment.