Brother inkjet cartridges can be replaced with our compatible brother cartridges for LC01, LC02, LC04, LC21, and many other brother ink cartridges and printers. Our inkjet cartridges unless otherwise stated are compatible to the Brother Originals that they replace. They are 100% guaranteed to perform as well as the original Brother cartridges (example LC02, LC04, LC21 etc cartridges). By buying our inkjet cartridges you save ob average about 50-60% compared to buying cartridges from an office supply store. And you are guaranteed the same quality and print longevity as our cartridges for Brother printers are tested to print 100% +/- 5% page yield the same as OEM brother cartridges.