Maintenance > 1222. Press the cover release (a) and open the MFP’s top cover(b) fully. Cover Release.eps3. Note the positions of the four cartridges. ID Order.epsbaWARNING!If the MFP has been powered on, the fuser will be hot.This area is clearly labelled. Do not touch.12341. Cyan cartridge 2. Magenta cartridge3. Yellow cartridge 4. Black cartridge