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Main Unit Theory of Operation Miscellaneous
2-123
II Composition/Operation
18. Miscellaneous
18.1 Fan control
18.1.1 Composition
Key Name Function/system
[1]
Fusing Cooling Fan Motor (M11) • Discharges heat generated from the interior parts
(including the Low Voltage Unit, Fusing Unit, Toner
Cartridges/K, and motor drives) from the machine to
prevent the interior temperature from rising
inordinately.
• Air passageway is formed on top of the Low Voltage
Unit, in the duct inside the Toner Cartridge rail, and
below the print head housing. No air flows through
areas around the Toner Cartridges. This effectively
prevents toner from scattering.
[2]
LV Cooling Fan Motor (M10) • Discharges heat generated from the interior parts
(including the Low Voltage Unit, intermediate transfer
belt section, Toner Cartridges/C, M, Y, and motor
drives) from the machine to prevent the interior tem-
perature from rising inordinately.
[3]
Ozone Ventilation Fan Motor (M12) • Discharges heat generated from the print head from
the machine to prevent the print head temperature
from becoming inordinately high.
• Removes ozone produced from the Toner Cartridges
and charging section.
• Air passageway is formed on top of the Low Voltage
Unit, in the duct inside the Toner Cartridge rail, and
below the print head housing. No air flows through
areas around the Toner Cartridges. This effectively
prevents toner from scattering.
4138to2111c0
4138to2110c0
[2]
[1]
[3]
[1], [2]
[3]
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