Fan speed too low of one fan of the Laser Driver Module

1. Check fan wire connection on the Controller Board of the LDM (reference 1, image).

2. Check if the fan is not blocked .

3. Malfunctioning fan. Replacement needed.

For removing and replacing the fan, see procedure "Removing a fan from an LDM".

Error on both fans of the LDM. Malfunction Control Board of LDM.

Replace the LDM. See service procedure "The Laser Driver Modules (LDM)".