OKIDATA OF2600, Руководство по обслуживанию

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1.5.06 Developing
The electrostatic latent image formed on the image drum surface is developed into a visible image.
Developing takes place when contact is made between the image drum and the developing roller.
As the toner supply roller rotates, toner is absorbed into the sponge type roller material.
A charged particle will be attracted to a particle having a MORE POSITIVE charge than its own.
The developing roller surface is charged to -300 vdc and the toner supply roller is charged to -450 vdc.
Since the development roller is charged more positive than the toner supply roller, the toner on the toner
supply roller is attracted to the developing roller. The toner on the developing roller contacts the doctor
blade, forming a thin coat of toner on the developing roller surface.
1.5.07 Transfer
The transfer roller is made of a conductive sponge material. The roller keeps the paper in constant contact
with the image drum. Paper is placed over the image drum surface. A positive charge (opposite in polarity
to the toner) is applied to the paper from the reverse side.
A charged particle will be attracted to a particle having a MORE POSITIVE charge than its own.
A high positive charge is applied to the transfer roller by the power supply board. This induced charge (on
the surface of the transfer roller) is transferred to the paper when contact is made between the transfer
roller and the paper. The lower side of the paper is positively charged. The negatively charged toner (on
the photosensitive drum) is transferred to the upper side of the paper because of the positive charge on
the lower side of the paper.