Specifications

Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL
96.11.01
M-58
1151SBM2101A
21-1. Fusing Temperature Control
The Upper Fusing Roller is heated by Fusing Heater Lamp H1 which is an AC
halogen lamp. Fusing Thermistor TH1 installed on the Upper Fusing Roller helps
keep the optimum fusing temperature.
The fusing temperature is normally controlled at 195°C. To ensure good fusing
performance, however, even when the Lower Fusing Roller remains cool
immediately after warm-up in the early morning, the temperature is controlled as
follows when the copier is turned ON:
*If the initial fusing temperature is less than 90°C:
Temperature is controlled at 205°C for 10 min. after the copier has completed
warming up, which is followed by a temperature control at 195°C.
*If the initial fusing temperature is less than 150°C:
Temperature is controlled at 205°C for 1 min. after the copier has completed
warming up, which is followed by a temperature control at 195°C.
*If the initial fusing temperature is more than 150°C:
Temperature is controlled at 195°C after the copier has completed warming up.
TH1 is positioned at a point 84 mm from the paper path reference position, thereby
preventing offset caused by low temperature and degraded fusing performance for
small-size paper.
The control temperature in the Energy Saving Mode is 100°C.
Fusing Thermoswitch TS1, installed above the Upper Fusing Roller, cuts off the
power to the Fusing Unit if the temperature of the Upper Fusing Roller becomes
excessively high. It eliminates the possibility of a fire that could occur when H1
remains ON due to a faulty temperature control circuit.