?? Brand-new material meets Environmental Standards, without having to pay more for expensive things ?? Precisely designed to deliver clear and crisp printing result to satisfy your every need ?? Manufacturing: We strictly control the quality of the ink cartridges to ensure that you can print each piece of paper with confidence and be your trusted toner cartridge service provider ?? Function: clear text, vivid photos, consistent lines, print realistic photos, and laser-quality text ?? Durable, no harm to the machine: the use of environmentally friendly materials, long printing life, affordable, good care for the printer ?? Instructions Step 1: Shake the toner cartridge 5-6 times before use Step 2: Pull out the seal horizontally (the seal length is about twice the length of the toner cartridge) and remove the protective cover Step 3: Load the toner cartridge into the printer in the correct way ?? After-sale: Our toner cartridges have a lifetime warranty; if you have any questions during use, please feel free to contact us