Table 7-201The following fans are controlled to two different speeds: full rotation and half rota-tion. As shown in Figure 7-202, each circuit is switched between +24 and +12V voltagesby the CPU on the DC controller PCB.• Exhaust fan (FM2)• Feeding fan (FM6)• Cleaner fan (FM7)• Scanner cooling fan (FM8)• Scanner motor cooling fan (FM9)When the FMFLL signal from the CPU goes ‘1’, +24 V will be supplied so that the fanrotates at full speed; when the FMHLF signal goes ‘1’, on the other hand, +12 V will besupplied so that the fan rotates at half speed.Figure 7-202‘E214’ will be indicated on the control panel if the scanner motor cooling fan (FM9)does not send the scanner motor cooling fan rotation detection signal (FM9ROT) to theDC controller PCB for 2 sec or more.FMCPUFMFLLFMHLF+24v+12vDC controller PCBFanCHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS7-7COPYRIGHT © 1997 CANON INC. CANON NP6560/NP6360/NP6260 REV. 0 NOV. 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)NotationFM2FM3FM5FM6FM7FM8FM9NameExhaust fanFixing assemblyheat exhaustfanDeveloping fanFeeding fanCleaner fanScanner coolingfanScanner motorcooling fanOrientationBlowingDrawingDrawingDrawingDrawingBlowingBlowingFilterOzoneAir, dust-proofingDust-proofingFunctionDischarges exhaust from each fanto the outside of the machine.Prevents increases in temperatureinside the machine caused by thefixing heater. Exhausts silicone oilvapors.Draws toner astray near the devel-oping assembly.Keeps copy paper close to thefeeding belt.Prevents increases in temperatureinside the machine.Cooling the scanner, cooling theprimary charging assembly.Cooling the scanner motor (M3).
