FN105
FN101
FN301
FN104
FN102
FN103
FN107
Table 1-2 Print-engine fans
Name Cooling area Type Motor speed Failure detection
Main fan (FN101) Cartridge area, engine
power supply area and
laser scanner area
Intake 2-speed Yes
Laser scanner fan
(FN102)
Laser scanner fan Intake 1-speed Yes
Cartridge front side fan
(FN103)
Cartridge area Intake 1-speed Yes
Low-voltage power
supply fan (FN104)
Low-voltage power
supply area
Intake 2-speed Yes
Switchback fan
(FN105)
Switchback area Intake 1-speed Yes
Duplex fan (FN107) Duplex feed area Intake 1-speed Yes
Cartridge fan (FN301) Cartridge area Intake 1-speed Yes
Ambient-temperature detection
The product contains an environmental sensor that measures the air temperature of the surrounding
environment. The product automatically adjusts the temperature settings in the fuser to adjust for
changes in the ambient temperature.
10 Chapter 1 Theory of operation ENWW
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