Temperature Detection Section - Toshiba e-studio3511, e-studio4511 Manual

16.4.5 Temperature detection section

To maintain the stable temperature of the fuser belt, the thermistor detects the temperature and controls
ON/OFF of the IH coil. Output from the thermistors is used to detect the abnormality.
(1) Relation between the thermistor output voltage and surface temperature of the fuser belt:
(2) Control of the surface temperature of the fuser belt:
Temperature
of fuser belt
16
(3) Temperature control for the both ends of the fuser belt
During the continuous printing, the temperature of the both ends of the fuser belt (areas where the
paper does not pass on) generally tend to be higher than that of the other areas (areas where the
paper passes on). The temperature of the ends are detected by the front edge thermistor, and when
it reaches 250°C, the heater is automatically turned OFF regardless of the temperature of the area
where the paper passes on.
e-STUDIO3511/4511 FUSER UNIT/PAPER EXIT SECTION
Output voltages of thermistors [V]
Approx. 0.30
Approx. 1.77
Approx. 3.28
Approx. 3.66
Approx. 3.81
Approx. 4.03
Warming-up
°C
180
IH coil ON OFF
0
Surface temperatures of fuser belt [
40
100
150
170
180
200
Ready ( 180°C ) During printing ( 180°C )
ON OFF ON OFF ON
Fig. 16-404
16 - 8
C]
o
OFF ON OFF ON
November 2003 © TOSHIBA TEC