Filter
Top Products
Main Unit Theory of Operation Fusing Section
2-107
II Composition/Operation
E. Ordinary start control
1. The “single reference temperature adjustment” is started with the target temperature of
the Heating Roller Heater Lamp set at 170°C + correction value. At the same time, the
“single reference temperature adjustment” is started with the target temperature of the
Fusing Pressure Roller Heater Lamp set at 150°C.
2. If the Heating Roller temperature reaches a level of 120°C or more, both the Fusing
Pressure Roller and Fusing Belt are turned at the specified speed. Or, when a prede-
termined period of time elapses, the Fusing Pressure Roller and Fusing Belt are turned
at the specified speed.
3. If the control has proceeded from “low temperature start control,” the Fusing Pressure
Roller and Fusing Belt are turned at the specified speed.
4. If the Heating Roller temperature becomes 165°C or more and the Fusing Pressure
Roller temperature becomes 70°C or more after the lapse of a predetermined period of
time after the Fusing Unit rollers and belt have been rotated, the “fusing Ready” state is
set.
5. If a print request is received after the “fusing Ready” state, the control proceeds to
“print control (print start control).”
6. If the Heating Roller temperature becomes 170°C + the correction value or more, the
control proceeds to “post-warm-up control.”
7. The control proceeds to “heater OFF control” if an event of control termination timing
occurs during control.
Warm-up cycle control diagram during ordinary start
OFF
ON
HI
LOW
HI
LOW
Fusing Motor (M4)
Fusing ReadyWarm-up start Fusing Unit rollers
and belt start
Temperature control
Temperature control
Fusing
Pressure Roller
Heating Roller
Temperature (°C)
170 + ǩ
150
165
120
Heating Roller Heater Lamp
(H1) Remote
Fusing Pressure Roller
Heater Lamp (H2) Remote
4138to2565c0
5430DL_5440DL_5450_TO_PDF.book 107 ページ ２００５年４月１２日 火曜日 午後４時４９分