MX-C250 OPERATIONAL DESCRIPTIONS 11 – 23
D. Fusing operation
This model has single heater lamp in the fuser roller (heater roller).
The heater lamp heats a fuser roller (heat roller) and then, fixes
(adhesion) the toner on the paper.
Due to below reasons, the fuser roller (pressure roller) adopts sili-
con-rubber as the material.
1) To increase the quantity of nip and raise heating capacity for
the paper.
2) By pressurizing with a flexible roller, the shape of a multilay-
ered toner on the paper is fixed without transforming.
3) For the irregularity (for multilayered structure) of the toner,
pressure increases uniformly.
E. Fusing temperature control
The temperature sensor is provided at the center of the fusing roller
(heating).
The roller temperature is detected by the thermistor sensor, and the
heater lamp is controlled so that the temperature is maintained at
the specified level.
F. Manual pressure release
The pressure of the heat roller is reduced by lowering the levers of
the fusing unit. When running envelopes and during long periods of
machine non use, the levers should be lowered.
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