Fusing Idling Temperature; Overheat Protection - Gestetner B003 Service Manual

IMAGE FUSING AND PAPER EXIT

Fusing Idling Temperature

If copies are not sufficiently fused soon after the main power switch is turned on,
fusing idling should be enabled with SP1-103-1. When fusing idling is enabled, it is
done when the temperature reaches the value of the re-load temperature. The re-
load temperature can be adjusted with SP1-105-5, 6.
In the opposite case, even if fusing idling is disabled, it is done when the
temperature at power-up ≤ 15°C
The fusing idling time is as follows.
Temperature at
power-on
15°C or less
Higher than 15°C

6.15.9 OVERHEAT PROTECTION

If the hot roller temperature becomes greater than 250°C, the CPU cuts off the
power to the fusing lamp, and SC543 Fusing Overheat Error will be displayed.
Even if the thermistor overheat protection fails, there is a thermostat in series with
the common ground line of the fusing lamp. If the temperature of the thermostat
⇒
reaches 180°C, the thermostat opens, removing power from the fusing lamp. At the
same time, the copier stops operating. At this time, SC542 Fusing Temperature
Warm-up Error will be displayed.
B003/B004/B06/B007
Fusing Idling Mode
0: Disabled 1: Enabled
30 s
Not done
6-80
SP1-103-1
30 s
SP1-103-2
30 s
Rev. 09/2002
SM