Konica Minolta bizhub 500 Service Manual page 128

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Theory of Operation Ver1.0 Feb.2006

G. Developing cooling fan (FM7)

Take in fresh air to cool down the developing motor (M3).

(2) ON timing

After completion of the print, it turns ON a specified period of time after M3 turns OFF.

While in the auto toner supply mode, it turns ON in synch with the turn-ON of M3.

It turns ON when the machine inside temperature goes over the prescribed temperature.

(3) OFF timing

After completion of the print, it turns OFF a specified period of time after it turns ON.

While in the auto toner supply mode, it turns OFF in synch with the turn-OFF of M3.

It turns OFF when the machine temperature goes down below the prescribed temperature.

H. Overall control board cooling fan (FM10) control

Cool down the overall control board (OACB) with suction air.

(2) ON timing

It turns ON when the power switch (SW2) turns ON.

(3) OFF timing

It turns OFF when SW2 turns OFF.

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