Return Program toner cartridge is essential to Lexmark Print System performance. Unison toner consistently delivers outstanding image quality, ensures long-life system reliability and promotes superior sustainability - all in an innovative, shake-free print system. Cartridge is compatible with Lexmark CX820dtfe, CX825dte, CX825dtfe, CX860dte, CX860dtfe, CX860de, CX825de, CX820de, CS820dte, CS820dtfe and CS820de.