TA Triumph-Adler DCC 2930 - Manual (Page 476)

Maintenance
11-20
4 As shown in the figure, clean dirt from the transfer
roller by moving the brush from side to side along
the roller while rotating the roller by turning the gear
at the right end of the roller.
5 Press the specified position of the right cover 1 to
close.
6 Put away the cleaning brush and close the front
cover.