Kyocera KM-4230 Service Manual page 370

( 2 ) Detaching and refitting the cleaning brush
Clean or replace the cleaning brush as follows.
<Procedure>
1. Remove the developing unit, main charger assembly and drum.
2. Remove the cleaning spring.
3. Shift the thrust spring toward the machine rear and detach the cleaning blade shaft.
Figure 3-3-71
Cleaning blade shaft
Cleaning blade shaft
Figure 3-3-72
Cleaning spring
Thrust spring
2A3/4
3-3-61