≪Package Contents≫ LC412-BK x 4 【BK 4-pack】 LC412-4PK. From an environmental perspective, we have adopted a system where you can read a QR code to view the online instruction manual. ≪Compatible Models≫ MFC-J7100CDW, MFC-J7300CDW ≪Product Features≫ The ink level cannot be displayed on the printer, but it can be checked on the computer. This is not a defect due to the manufacturer's compatibility measures. If you replace the ink before the replacement sign appears, the previous chip data may be carried over, and the remaining ink detection may not work correctly. Please be sure to replace the ink cartridge after the replacement sign appears. Manufactured in factories certified with international standards such as ISO14001, ISO9001, CE, and SGS. We provide products to customers in over 32 countries, including the United States, the United Kingdom, France, Spain, Germany, and Russia. Each product is carefully made, and we conduct thorough inspections and packaging in Japan, ensuring the highest quality. ※This product is a compatible ink cartridge. Please purchase with the understanding that it is a compatible ink cartridge. Also, due to intellectual property reasons, the product label may differ depending on the product's arrival time, but the product specifications are the same. Please understand this before using the product.