Bad wiring connection

Check connector J901 on the LCB and the LDM 2. Make sure the cable is properly seated. If problem persists, replace the cable.

Defective +36V module LDM 2-7

Replace the +36V module in the LDM 2–7. See service procedure "Replacing a Board in a Laser Drive Module".

Malfunction LCB.

Replace the Laser Control Board (LCB). See service procedure "Laser Driver Module".