Specifications

21-7. Fusing Temperature Control
•
The Fusing Unit is provided with three heater lamps, each turning ON to
provide fusing temperature control at a particular timing so that power
consumption can be minimized.
Part Name Symbol Function
Controlled
Temperature
Upper Fusing
Roller Main
Heater Lamp
H1
Turns ON during the warming-up cycle, a
copy cycle, and in the standby state
following the completion of warm-up. (The
lamp provides temperature control at all
times.)
190°C
Upper Fusing
Roller Sub
Heater Lamp
H2 Turns ON during the warming-up cycle.
Lower Fusing
Roller Heater
Lamp
H3
Turns ON in the standby state following the
completion of warm-up.
140°C
*
The temperature is controlled at 180°C during the Energy Saver mode.
Only H1 is turned ON to increase the temperature after the Energy Saver
mode.
*
"Temperature control" refers to the process of turning ON and OFF the
heater lamps to arrive at a predetermined temperature.
*
"Temperature control completed" means the predetermined temperature
has been reached.
◆ Example: The copier is turned ON when the Upper and Lower Fusing
Rollers remain cool in the morning and a copy cycle is run
following the completion of warm-up.
1075M155CC
190
170
140
( C)
(Time)
180
0
M6
H1
H2
H3
Fusing Motor M6 Energized Temperature Control Provided
Power Switch
ON
85 sec.
Changes in Upper Fusing Roller
Surface Temperature
Warm-up Completed
(Temperature Control Completed)
Predrive Start Predrive End
Start Key
ON
Copy Cycle
Completed
Energy Saver
OFF
Energy Saver
ON
Changes in Lower Fusing Roller
Surface Temperature
5 min. or less
M-172