Lexmark LEX64080HW LEXMARK T640N-BID HI RECOND BLACK TONER. Compatable with these models: T640
T640DN
T640DTN
T640N
T640TN
T642
T642DTN
T642N
T642TN
T644
T644DTN
T644N
T644TN
T640DN
T640DTN
T640N
T640TN
T642
T642DTN
T642N
T642TN
T644
T644DTN
T644N
T644TN