Brother 4570CDW - Manual (Page 159)

Routine Maintenance
136
5
h
Slide the belt unit back into the machine. Make sure the belt unit is level and fits firmly into place.
i
Install orange packing materials to the drum unit as follows:
 Install one orange packing material (1) to secure the toner cartridges to the drum unit on the left and
right sides respectively.
 Install one orange packing material (2) to the drum's side surface on the left side only, as viewed from
the front.
 Install one orange packing material (3) to the drum's side protruding section on the right side.
1
2
3