This black toner cartridge is compatible with Sharp printers AL-1351, AL-1451, AL-1520, AL-1521, AL-1530CS, and more. It is a brand new product that ensures high-quality printing results. The cartridge is designed for use with Sharp AL-1000, AL-1010, AL-1020, and AL-1041 printers and has a page yield of up to 6,000 pages.This toner cartridge is an excellent choice for those who want to produce professional-quality prints without worrying about the cartridge's wear and tear. It has been manufactured with precision to meet the highest standards, ensuring that you get the best value for your money.