pg. 87
4) Remove 1 screw [1] and the drum fixation cylinder [2], and remove 2 screws [3] to pull the process unit out,
then remove the process unit from the main body.
[Caution] When installing the process unit, fit the 3 grooves [a] at the edge of the drum shaft with the 3
protrusions [b] of the drum fixation cylinder to install the drum shaft fixing screw.
5) Clean the area [a] of the primary charging assembly downstream duct.