Kyocera ECOSYS M3040dn Service Manual page 239

Defective part
LSU
7
Control PWB
8
Check description
1. The laser diode on the LSU
APC PWB is out of control.
2. Check whether the internal
mirrors are contaminated.
The control PWB is detective.
Replace the LSU. (see page 1-5-25)
Replace the control PWB.(see page 2-2-12)
1-4-77
2NM/2NX/2NY/2NZ/2P0/2P6
Corrective Action