TA Triumph-Adler P-C4580DN - Manual (Page 261)

7-3
Maintenance
3
Remove the toner container and insert it into the provided plastic
disposal bag.
4
Remove the new toner container from the box.
5
Hold the toner container vertically and hit the upper part about 3
times. Invert the toner container so that the other end is up, and hit in
the same way.
6
Hold the toner container horizontally and shake from side to side
about 3 times.