Temperature Control; Fusing Temperature Control Flow - Minolta magicolor 7300 Service Manual

FrameMaker Ver.6E (PC) magicolor 7300 MECHANICAL/ELECTRICAL
02.08.08
8-6.

Temperature Control

• Heater lamps are turned ON and OFF to keep the surface temperature of the Fusing
Pressure Roller and Heating Roller at predetermined levels.
• The heating roller has two heater lamps with different heat intensity and light distribution,
which are switched according to the paper size.
• The surface temperature of the heating roller and the fusing pressure roller is detected by
a thermistor and the heater lamps are turned ON or OFF.
• If the surface temperatures of the Fusing Pressure Roller and Heating Roller run inordi-
nately high, power to the heater lamps is shut down.
• When an error occurs, with the exception of "No paper", "Paper misfeed" or "size error",
the power to the heater lamps is shut down.
(1)

Fusing Temperature control flow

• Control is different according to the state of the engine.
Power ON
Emergency Stop Error
Temperature Control at
Emergency Stop Error
Temperature Control during
Pre-heat Mode Release
Command Receipt
Emergency Stop Error
Pre-heat Mode Temperature
Heater OFF
Warm-up
Print Completion
Print receipt
standby
Pre-heat Mode Start Com-
mand Receipt
Control
Sleep Start Command Receipt
Emergency Stop Error
Error Release/Power-saving Mode Release Command Receipt
M-44
Temperature Control during
Printing
C4134S040AA