REPLACING CONSUMABLE ITEMS > 57then lower the right end of the cartridge onto the image drumunit.11.Pressing gently down on the cartridge to ensure that it is firmlyseated, push the coloured lever (1) towards the rear of theprinter. This will lock the cartridge into place and release tonerinto the image drum unit.12.Finally, close the top cover and press down firmly at both sidesso that the cover latches closed.211