Compatible Brother LC421 (LC421BK-CPT, LC421C-CPT, LC421M-CPT, LC421Y-CPT)

Problem: Cartridge is the wrong size

The cartridges are physically a different size or shape.

Compatible cartridges will always look different to the original branded cartridges. They will often differ in shape or size, but this does not affect the fitting or functionally of the cartridges in any way at all.

Resolution

• Please check the seal has been pierced on the cartridge. If not, reinstall it and give it a firm push upon installation.

Problem: Fading on print

Printouts are very faded print or there is a lack of print on the page

Resolution

• If the print quality is poor or no ink is appearing on the paper then try doing 2-3 head cleans/nozzle cleans
• Leave 20 minutes between each clean

Problem: Printing blank pages

The ink cartridge printed one or two pages and then stopped printing.

Resolution

• It could be that the tape that covers the breathing hole has not been removed
• Be sure the breathing hole on the cartridge has been released usually by removing a small “rip strip” so that the cartridge has air supply then it can print.

Printers that use Brother LC421 cartridges

To see a full list of products that work in your printer, click on the model name below:

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