Oki OKIPAGE 24DX Service Manual page 34

This motor is a pulse motor of 72 steps/rotation that is two-phase excited by the signal from the control board and is
the main motor of this mechanism.
(4) Clutch (for Registration)
Switches the transfer of power to Roller Registration if necessary depending on the power Motor-Main and
instructions from the control PCB.
(5) Clutch (for Feed Roller)
Switches the transfer of power to Feed Roller if necessary depending on the power from Motor-Main and instructions
from the control PCB.
(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.
(8) Duplex Unit
Duplex Unit is a unit, which is installed on the printer unit for controlling both-sided printing from the printer unit,
intended for automatically reversing paper of which one side have been already printed on and re-feeding them to
the unit for printing other side.
Copyright 1998, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner
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