TA Triumph-Adler P-C4580DN - Manual (Page 275)

7-17
Maintenance
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.