Oki ES9160, Maintenance Manual

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ES9160 MFP / ES9170 MFP © 2012 OKI DATA CORPORATION All rights reserved
OUTLINE OF THE MACHINE
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3.13.3 Operation
The fuser roller is pressed with the spring force from the pressure roller side, and is rotated by the main
motor drive. Then the paper transported to the fuser unit is hold between the fuser roller and pressure
roller and the toner is fused on the paper with heat and pressure. After this, the separation fingers
separate the paper from the fuser roller or pressure roller. Then the paper is transported to the inner
tray, paper exiting options or ADU through the exit roller. In addition, the heater lamps in the fuser roller
do not structurally rotate.
3 heater lamps having different functions each other are installed; the center heater lamp applies heat
to the center part of the fuser roller, the side heater lamp applies heat to both ends of the roller, and the
sub heater lamp applies heat to the whole roller and assists the heater lamp and the side heater lamp.
The thermistors control the temperature of fuser roller and detect temperature abnormalities. If the
temperature becomes excessively high, the thermostat is opened to stop the power supply to the
heater lamps.