Fusing
G133 6-70 SM
- Paper Weights -
Thin paper: Below 60 g/m
2
(16 lb.)
Normal plain paper: 60 – 90 g/m
2
(16 – 24 lb.)
Middle Thick: 90 – 105 g/m
2
(24 – 28 lb.)
Thick 1: 106 – 169 g/m
2
(28.5 – 44.9 lb.)
Thick 2: 170 – 219 g/m
2
(45 – 58 lb.)
Thick 3: 220 – 253 g/m
2
(58.5 – 67 lb.)
Thick 4, 5, 6: These settings are designed for special types of paper that are found in
the Japanese market.
Overheat Protection
The CPU cuts power to the fusing lamp at the following times:
The heating roller or pressure roller temperature becomes higher than 215°C for one
second or more.
SC 543 and SC 553 for the heating roller or SC 563 for the pressure roller show for this
condition.
The heating roller or pressure roller temperature reaches 220°C.
SC 544 and SC 554 for the heating roller or SC 564 for the pressure roller show for this
condition.
The following components are used if thermistor or thermopile overheat protection fails.
Two thermostats for the IH inverter (heating roller) and two thermofuses for the
pressure roller in series with the common ground line of the fusing lamp.
Do not push the two thermostats for the heating roller at the IH coil unit.
Otherwise, these thermostats are opened. As a result, the IH coil unit must be
replaced.
If one of the thermostat temperatures becomes higher than 234°C, it opens and
cuts power to the IH inverter.
If the other thermostat temperature becomes higher than 235°C, it also opens and
cuts power to the IH inverter.
If either of the two thermofuse temperatures becomes higher than 149°C, the
thermofuse opens and cuts power to the fusing lamp.
These thermofuses make a series circuit.
In either case, the machine stops operation.
To Next Page
Loading...
Need help?
General
