Gp 25 Heat Control - Xerox FaxCentre F110 Service Manual

GP 25 Heat Control

A halogen lamp of 800W heats up the fuser. The initial heating time is around 15s, it means that
at full power, the temperature of the system change not faster than 8°C/s.
The FUSER signal switches on(1)/off(0) the halogen lamp. To protect the device against over-
heating, this signal is overridden by a thermal shutdown when necessary.
Therm istor
The output of the thermistor is measure through an ADC to enable an accurate regulation of the
temperature. See following diagram for the normal behaviour.
165°C±3°C
145°C±3°C
Ambiant: 25 °C
Fuser command
Fan command
Full speed
Half speed
FaxCentre F110
Fuser
Waiting for
Preheating: 15s
information
Figure 1
Inactivity:
Printing
30s
Figure 2
12/04
General Procedures / Information
AC
M ains Lam p
Power
Waiting Cooling
time: 4-5min down
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