Konica Minolta magicolor 1600W Service Manual - Page 122
Fan control
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Duplex Option Theory of Operation Ver. 1.0 Nov. 2008 4. Operations 4.2.4 Loop correction control • A loop correction mechanism is provided to prevent skew from occurring in the second page. • The Registration solenoid (SD7) is energized after the lapse of a given period of time after the Loop sensor (PS13) has been activated. This drives the registration roller. When the registration roller is driven, the media is conveyed into the machine. 4.3 Fan control 4.3.1 Composition COMPOSITION/ OPERATION Cooling fan motor (FM3) A0VTT2E517AA 4.3.2 Operation Motor name Cooling fan motor (FM3) Function (purpose) To discharge heat stagnant inside the machine and MFP board to the outside to prevent the temperature of the DC power supply from rising. 4.3.3 Control condition Motor name Condition ON (high speed) Cooling fan motor (FM3) ON (low speed) OFF Control conditions • At the strat of a duplex operation. • At the end of a duplex operation (half-speed rotation after a predetermined period of time of fullspeed rotation) • Other than above 9