How do you replace a white out ribbon on a Brother

Lift the front cover towads you ( if I remember, ) or up, and you will see the tape cassette and either side of that is two small yellow wheels which are the lift off tape. Just pull them up and they will come off. To fit a new one, push them on, then turn the right hand side one until the lift off tape comes into view, past the paper cover, close the lid then you are ready to go