Main Motor Electromag-netic ClutchHoppingRollerRegist Gear Drum Gear OperationNormalrotationOFF Non-rotation Non-rotation Rotation Warm-upReverserotationON Rotation Rotation Rotation HoppingReverserotationOFF Non-rotation Rotation Rotation Printing(4) LED headThe shift and latch registers receive image data from the main control board for each dot line. Theycontrol the 2,560 or 2,496 LEDs, which illuminate the image drum.(5) Fuser AssyThe fuser Assy consists of a heater, a heat roller, a thermistor, and a thermostat.The power supply unit applies AC voltage to the heater according to the HEATON signal from the maincontrol board; this heats the heat roller. The main control board monitors the heat roller temperature viathe thermistor and keeps the temperature constant by turning on/off the heater voltage.If the heat roller temperature rises abnormally, the thermostat in the heater voltage supply circuit cuts offthe AC voltage supply.Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business PartnerExchange (BPX) for any updates to this material. (http://bpx.okidata.com)
