22 March 1996 IMAGE FUSING
10.6 FUSING TEMPERATURE CONTROL
(°C)
Detailed
Descriptions
A133D619.wmf
When the main switch turns on, the CPU checks the mains frequency for 500
ms; this is done in case phase control mode is selected later. Then the CPU
turns on the fusing lamp.
After the main switch has been turned on, the copier starts fusing idling for
about 30s when the thermistor detects the operating fusing temperature
(185°C). When fusing idling mode is disabled, fusing idling is not done,
regardless of the fusing temperature when the main switch is turned on.
Note: Fusing idling can be enabled or disabled with SP 1103. In this
machine, it is normally disabled because the copy speed is not high
enough to require it.
If the fusing lamp is turned on while the exposure lamp is on, the power
supplied to the exposure lamp may fluctuate, possibly degrading the copy
quality. To prevent this, in this machine, the fusing lamp can either stay off or
change from on to off while the exposure lamp is on.
There are two types of fusing unit control: on/off control, and phase control.
The mode can be selected with SP1104.
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ACEC
RICOH
