2.4.18 POWER UNIT COOLING FAN MOTOR
The Power Unit Cooling Fan Motor prevents the temperature at the Power Supply Unit and the Polygon
Motor in the PH from rising inordinately.
Power Unit Cooling
Fan Motor (M4)
Electrical
Control Signal
Component
PJ6A-2
M4
See block diagram of
the printer.
Master Board (PWB-A)
While Main Motor is Turning
Full speed
DC24V
2-50
Power Supply Unit 1 (PS1)
In Standby
Half speed
DC10V