Epson Aculaser C9200N, Service Manual

Page: 94 / 441

EPSON AcuLaser C9200N Revision D
OPERATING PRINCIPLES Other Control 94
Confidential
2.4 Other Control
2.4.1 Fan Control
2.4.1.1 Construction
Figure 2-88. Construction
2.4.1.2 Function
4039T2C131AA
Suction Fan Motor (M10)
Ozone Ventilation Fan Motor (M14)
Power Supply Cooling Fan Motor/1
(M8)
Cooling Fan Motor/1 (M12)
Cooling Fan Motor/2 (M22)
Fusing Cooling Fan Motor (M13)
Fusing Cooling Fan Motor/2 (M11)
Table 2-13. Function
Motor Name Control Conditions
Power Supply
Cooling Fan Motor/1
(M8) It exhausts the accumulated heat inside the unit in order to prevent
temperature from increasing at DC power supply part and the controller
part.
Ozone Ventilation
Fan Motor (M14) • 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 the PC Drum Charge Corona will be
absorbed by Ozone filter and be removed.
Fusing Cooling Fan
Motor/1 (M13) • 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 exhausted.
Fusing Cooling Fan
Motor/2 (M11) • When the paper with toner heated at fusing part exit while still at high
temperature, toner may be transferred to other paper on the exit tray.
• In order to avoid this, air is applied to cool the toner and paper.
Suction Fan Motor
(M10) • Paper will be sucked between 2nd 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.
Cooling Fan Motor/1
(M12) Heat accumulated inside the unit will be discharged in order to avoid
temperature increase, etc., inside the transfer part (Transfer Belt and
Transfer Clutch).
Cooling Fan Motor/2
(M22) Heat accumulated inside the unit will be discharged in order to avoid
temperature increase, etc., of the upper part inside the machine as well as
around the Color PC Motor.