13-3.Fusing Temperature Control - Minolta Di151 Service Manual

13-3. Fusing Temperature Control
• The Fusing Roller Heater Lamp is turned ON and OFF to keep a set temperature on the
surface of the Fusing Roller.
• The Fusing Roller surface temperature is detected by using a thermistor that translates
the temperature to a corresponding electrical signal.
• If the Fusing Roller temperature becomes excessively high, the Fusing Heater Lamp is
shut down.
Part Name
Fusing Heater
Lamp
Thermistor
Thermoswitch
Warm-Up
Completed
(˚C)
210
200
170
124
23sec.
Symbol
• Turns ON during the warm-up cycle.
H1 • Turns ON during a copy cycle.
• Turns ON in the standby state.
• Detects the surface temperature of the Fusing Roller.
TH1
• Controls the Fusing Heater Lamp to turn ON and OFF.
• Detects the surface temperature of the Fusing Roller.
TS1 • Cuts off power when the temperature of the Fusing
Roller becomes inordinately high.
Start Key ON
Stand by
Mode 1
(90sec.)
M-33
Function
Energy Saving
Copy Stop Mode ON
Mode 2 Mode 3
(30sec.)
Start Key ON
170sec.
4007M027CA