(6) LED head
Image data for each dot line from the control board is received by the shift register and latch register. The
4992 LEDs are driven to radiate the image data to the image drum.
(7) Fuser
The fuser consists of a heater, a heat roller, a thermistor and a thermostat. An AC voltage from the power
supply board is applied to the heater under the control of the HEATON signal from the control board. This
AC voltage heats the heater. The control board supervises the heat roller temperature via the thermistor,
and regulates the heater roller at a predetermined temperature (185 °C : Normal paper, MEDIA TYPE =
MEDIUM) by connecting or disconnecting the AC voltage supply to the heater. If the heater roller
temperature rises abnormally, the thermostat of the heater voltage supply circuit is activated to cut the AC
voltage supply forcibly.
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Содержание OKIPAGE 20
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