Theory of Operation Ver. 8.0 Jun. 2008
24. Other control
1
69
C
omposition/Operation
24.1.2
Operation
A. Function
Motor name
Control conditions
Suction fan motor (FM1)
• Paper will be sucked between transfer part and fusing part, so it will have
a stable behavior and go smoothly into the fusing roller.
The air inside will be exhausted outside the unit.
• A Dust filter/Vertical transfer are mounted inside the ventilation duct in
order to remove dust the suction fan sucked with the air inside the unit.
Fusing cooling fan motor/
1 (FM2)
• Odor accumulated in the fusing part is absorbed by the odor filter to be
removed.
• Heat accumulated inside the unit will be discharged outside in order to
avoid temperature increase etc., at the fusing part.
Cooling fan motor/1 (FM3)
• Heat accumulated inside the unit will be discharged outside in order to
avoid temperature increase etc, at the transfer part or the fusing part.
Fusing cooling fan motor/
2 (FM4)
Fusing cooling fan motor/
3 (FM5)
• Odor accumulated between TC part and fusing part is absorbed by the
odor filter to be removed.
• In order to keep the temperature between TC part and fusing part as well
as motor part, heat accumulated inside the unit will be discharged.
Ozone ventilation fan
motor (FM6)
• A white belt may occur on the image because of the lower sensitivity of
the PC drum due to ozone accumulated around the PC drum charge
corona. In order to avoid this trouble, ozone filter removes the ozone
inside the PC drum charge corona to keep the sensitivity of the PC drum.
• Ozone accumulated around PC drum charge corona will be absorbed by
ozone filter and be removed.
Color toner suction fan
motor (FM7)
• Toner fume attached to the surface of the color IU is absorbed to be
removed outside.
K toner suction fan motor
(FM8)
• Toner fume attached to the surface of the K_IU is absorbed to be
removed outside.
Power supply cooling fan
motor (FM9)
• Heat accumulated inside the unit will be discharged outside in order to
avoid temperature increase etc, at the power part.
IH cooling fan motor/1
(FM10)
• Heat accumulated inside the unit will be discharged outside in order to
avoid temperature increase at the IH power used for fusing part.
IH cooling fan motor/2
(FM11)
IH cooling fan motor/3
(FM12)
• In order to avoid the temperature increase around IH power used for the
fusing part, the outside air is sucked into the unit to cool it.
Paper cooling fan motor
(FM13)
• In order to avoid toner adhesion to other things, outside air is sent to
ejected paper to cool it down.
Writing cooling fan motor
(FM14)
• In order to avoid the temperature increase around PH, the outside air is
sucked into the unit to cool it.
IU cooling fan motor
(FM15)
• In order to avoid the temperature increase around TC part, IU part, trans-
fer unit, etc., the outside air is sucked into the unit to cool it.
Rear side cooling fan
motor (FM16)
• Heat accumulated inside the unit will be discharged outside in order to
avoid temperature increase at rear side of the unit, such as the board
box.
MFP control board cooling
fan motor (FM17)
• Heat accumulated inside the unit will be discharged in order to avoid tem-
perature increase at the printer control board.
Scanner cooling fan motor
(FM201)
• Heat accumulated inside the IR part will be discharged in order to avoid
temperature increase at the scanner motor.
Y107522-3 Theory of Operation
Содержание d-Color MF550
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