OKIDATA OKIPAGE 8c, Руководство по обслуживанию

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(2) The toner blade scrapes away excess toner from the developing roller, leaving a thin film of toner
on the surface of
the developing roller.
(3) The toner is attracted to the latent image on the surface of the image drum, where the image
drum contacts the
developing roller. The latent image on the surface of the image drum is made visible with the toner.
(6) Transferring - The transfer roller made of conductive sponge presses the paper against the surface
of the image drum. The paper will make close contact with the surface of the image drum. This process
fits the paper to the surface of the image drum (using the transfer roller) and applies a positive charge
(opposite to the charge of the toner) from under the paper. When a positive high voltage is applied to the
transfer roller from the power supply, the positive charge induced on the transfer roller jumps to the upper
surface of the paper (where the transfer roller touches the paper) and attracts the negatively-charged
toner from the surface of the image drum onto the surface of the paper.
(7) Fixing - The toner image just transferred to the paper is fused and fixed to the paper while the paper
is passing through the gap between the heat roller and the backup roller. The teflon-coated surface of
the heat roller is heated by the 800-watt heater (or a halogen lamp) in the heat roller. The temperature of
the heat roller surface is controlled by a thermistor in contact with the surface of the heat roller. A
thermostat is provided for safety. When the heat roller temperature rises above the preset temperature,
the thermostat opens and shuts off power to the heater in the heat roller. The backup roller is evenly
pushed against the heat roller by two end springs.