Konica Minolta BIZHUB 750 Service Manual page 126

26. OTHERS
E. Cleaner cooling fan (FM5) control
(1) Purpose
To cool down around the cleaning section.
(2) ON timing
Turns ON a specified period of time after the power switch (SW2) turns ON.
(3) OFF timing
Not to turn OFF until the power switch (SW2) is turned OFF.
F. Suction fan /Fr (FM6) control
(1) Purpose
To cool down around the paper exit section and the fusing section with suction.
(2) ON timing
Turns ON in accord with the drum motor (M2) only when the 1st sheet of paper is fed.
While in the print, turns ON if it is in the single sided print mode when the fusing exit sensor (PS30) turns ON for
detection.
(3) OFF timing
Turns OFF a specified period of time after the paper exit sensor (PS37) turns OFF.
G. Exhaust fan /Rr (FM19) control
(1) Purpose
To cool down around the paper exit section and the fusing section with exhaust.
(2) ON timing
While in the print, turns ON if it is in the double sided print mode with the temperature inside the machine in
excess of a fixed temperature when the fusing exit sensor (PS30) turns ON for detection.
(3) OFF timing
Turns OFF a specified period of time after the paper exit sensor (PS37) turns OFF.
H. Paper exit fan (FM8) control
(1) Purpose
To cool down around the paper exit section with exhaust.
(2) ON timing
While in the print, turns on in accord with the drum motor (M2).
(3) OFF timing
Turns OFF a specified period of time after the paper exit sensor (PS37) turns OFF.
I. Scanner cooling fan (FM9) control
(1) Purpose
To cool down around the exposure lamp (L1) and the scanner.
(2) ON timing
Turns ON in accord with the turn ON of the exposure lamp (L1).
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Theory of Operation Ver1.0 Aug.2005