Kyocera KM-4230 Service Manual page 175

Remove pins holding light source units 1 and 2.
1. Remove the two pins for light source unit 1 and the pin for light source unit 2.
Light source unit 1 pins
Light source unit 2 pin
Remove the developing unit.
1. Open the front cover.
2. Turn the paper transfer section release lever to the right.
Paper transfer section release lever
Figure 3-1-14
* Illustration shows a 42 ppm.
Figure 3-1-15
2A3/4
3-1-15