Develop D 1531iD - 22 Other Mechanism; 22-1.Cooling Mechanism; Power Supply Section Cooling Mechanism

FrameMaker Ver5.5E(PC) Di152/Di183 MECHANICAL/ELECTRICAL
01.09.05
M-52
22. OTHER MECHANISM
22-1. Cooling Mechanism
(1) Power Supply Section Cooling Mechanism
• A cooling fan motor draws air from the area around the Power Supply Unit to the outside
to prevent the Power Supply Unit temperature from running high.
• The cooling fan motor is turned at full speed when the Main Motor turns and at a speed
reduction during other timings, thereby making the machine quieter without sacrificing
cooling performance.
Elevtrical Component Control Signal ON OFF Wiring Diagram
M4 PWB-A PJ19A-1
analog voltage
output
H11-I
4021M057AA
Power Supply Cooling Fan Motor M4