Responsive Customer Support: Our LC406 compatible ink cartridges are manufactured in an ISO9001, ISO14001, SGS, and CE certified facility, demonstrating our commitment to quality. If you encounter any issues or have questions, please don't hesitate to contact us through your Account. Simply click on "Your Account," select "Your Orders," find your order, and click "Contact Seller." Rest assured, we will respond to all emails within 24 hours. Superior Print Quality: Experience smoother printing and enjoy natural-looking, high-quality images with these cartridges. They are designed to produce impressive prints that exceed expectations. Extensive Printer Compatibility: Enjoy wide compatibility with a range of Brother printers, including MFC-J4335DW MFC-J4335DW XL MFC-J4345DW MFC-J4345DW XL MFC-J4535DW MFC-J4535DW XL MFC-J5855DW MFC-J5955DW MFC-J6555DW MFC-J6955DW . Before making your purchase, please verify that your printer model matches the compatibility list to guarantee optimal performance. Comprehensive Package: Unbox convenience with our package that includes 1x LC406 black ink cartridge, 1x LC406 cyan ink cartridge, 1x LC406 magenta ink cartridge, and 1x LC406 yellow ink cartridge. These cartridges are new compatible replacements (NON-Original), ensuring you have an abundant supply to fulfill your printing needs. Enhanced Page Yield: Experience exceptional page yield with the LC406 Ink cartridges, allowing you to print approximately 3,000 pages in black and approximately 1,500 pages in color at 5% coverage (Letter/A4). *Note: The Brother printer LC406 ink cartridges provided by IN INTACTECH come equipped with the latest upgraded chips. Please feel free to place your order at any time. However, due to technical issues with the chips, please only order 1 set of LC406 ink cartridges at a time. When the first set is depleted, you can purchase another set, at which point we will have different versions of the chips available.