Replaces the Following Manufacturer Numbers: LC41M. Compatible with the Following Printer Models: DCP-110C DCP-120C Fax 1840C Fax 1940CN Fax 2440C Intellifax 1840C Intellifax 1940CN Intellifax 2440C MFC-210C MFC-3240C MFC-3340CN MFC-420CN MFC-5440CN MFC-5840CN MFC-620CN MFC-640CW MFC-820CW.