The Lexmark T632 & T634 Extra High Yield Prebate Print Cartridge is compatible with the Lexmark T632, T632n, T632tn, T632dn, T632dtn & T632dtnf, & the Lexmark T634, T634n, T634tn, T634dn, T634dtn & T634dtnf. It is not compatible with T630, T630n or T630dn printers. The Lexmark T632 & T634 Extra High Yield Prebate Print Cartridge is not compatible with past generations of Lexmark printers.