24-2.Fusing Rollers Pressure Mechanism; Fusing Rollers Pressure Mechanism - Minolta EP3010 Manual

<Fusing Temperature Control During Continuous Small-Size Paper Feeding>
When a number of sheets of small-size paper are fed through the copier continuously, the
temperature of the rear end of the Fusing Rollers tends to rise, resulting in high-tempera-
ture offset occurring. Fusing Thermistor is installed at a location 278.5 mm from the posi-
tion of paper passage registration. As soon as Fusing Thermistor 2 detects 225°C, the
225°C control by Fusing Thermistor 2 is started.
1173SBM2402A

24-2. Fusing Rollers Pressure Mechanism

Pressure Springs are installed at both ends of the Lower Fusing Roller. These springs con-
tact the bearings mounted on both ends of the Lower Fusing Roller and exert pressure
through the Lower Fusing Roller to the Upper Fusing Roller which is installed in the Fusing
Unit.
The Fusing Unit is divided into an upper and a lower half, and the upper half can be swung
open. The Upper Half of the copier, when locked in position, presses the upper half of the
Fusing Unit down onto its lower half.
Pressure Spring
Upper Copier Frame
1139M076AA
M-79
Upper Fusing Roller
Lower Fusing Roller