10 August, 2001
IMAGE FUSING AND PAPER EXIT
2-67
Detailed
Descriptions
2.10.7 OVERHEAT PROTECTION
If the hot roller temperature becomes higher than 231
°
C, the CPU cuts off the
power to the fusing lamp. At the same time, SC543 is generated.
Even if the thermistor overheat protection fails, there are four thermostats in series
with the common ground line of the fusing lamp. If the temperature of the
thermostat reaches 210
°
C, one of the thermostats opens, removing power from the
fusing lamp. At the same time, SC 542 is generated and the machine stops
operating.
2.10.8 PAPER EXIT
The paper overflow detection sensor [A] is located at the paper exit section of the
fusing unit. When this sensor is activated, the machine detects that the paper stack
height exceeded a certain limit and stops printing.
B027D601.WMF
[A]