Brother DCP-115C - Changing the cartridges

Changing the cartridges in a Brother DCP-115C The instructions are similar for the following Brother machines: DCP110C DCP115C DCP117C DCP120C DCP310CN DCP315CN DCP340C FAX1835C FAX1840C FAX1940C FAX2440C MFC210C MFC215C MFC3240C MFC3340CN MFC410CN MFC420CN MFC425CN MFC5440CN MFC5840CN MFC620CN MFC640CW MFC820CW