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Ricoh U-C1 B051 - 6.12.3 FUSING UNIT COMPONENTS

Ricoh U-C1 B051
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IMAGE FUSING AND PAPER EXIT 26 July 2002
6-64
6.12.3 FUSING UNIT COMPONENTS
[A]: Fusing belt
[B]: Heating roller
[C]: Lamp (770 W)
[D]: Thermostat
[E]: Thermistor
[F]: Pressure roller
[G]: Lamp (350 W)
[H]: Thermistor
[I]: Thermofuse
[J]: Pawl
Fusing Belt
This machine uses a fusing belt [A]. The paper goes between the fusing belt and
the pressure roller [F].
Heating Roller Lamp
The center of the heating roller [B] contains a lamp (770 W) [C]. The thermostat [D]
and thermistor [E] control the temperature of the roller surface. The machine cuts
power to the lamp when it detects 220°C. The thermostat cutoff point is 200°C.
Pressure Roller Lamp
The center of the pressure roller [F] contains a lamp (350 W) [G]. The thermistor
[H] and thermofuse [I] control the temperature of the roller surface.
The temperature of the surface of the pressure roller reaches to 250 °C when the
pressure roller temperature rises gradually or it reaches 300 °C when it rises
rapidly. Normally, the machine cuts the lamp power when the thermistor detects
220 °C.
Pressure Roller Pawls
The pawls [J] above the pressure roller help prevent paper jams.
B051D503.WMF
[A]
[C]
[B]
[G]
[F]
[H]
[I]
[J]
[D]
[E]

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