TA Triumph-Adler DCC 2930 - Manual (Page 460)

Maintenance
11-4
6 Hold the toner container horizontally and shake
from side to side about 3 times.
7 Hold the toner container with both hands and gently
push it all the way in.
8 After pushing the toner container all the way in, turn
the toner container release lever to the horizontal
position.
9 Close the front cover.
NOTE: Return the exhausted toner container and waste toner box to your dealer or service representative.
The collected toner container and waste toner box will be recycled or disposed in accordance with the relevant
regulations