KIP 7170K, Руководство по обслуживанию

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3. 1 Print Process
3. 1. 1 Characteristic of toner
The toner used for KIP 7170 has a characteristic to be charged “negative”, which tends to be
attracted to a more “positive” object.
Suppose that there are objects A and B, and the situation is as follows.
1. Electric potential of the object B is higher than that of object A.
2. Toner exists on the object A.
Comparing the potential of both objects, it can be said that the object B is relatively “positive” and
the object A is “negative”. (In another word, object B is more “positive” than the object A.)
As the toner is “negative”, it is attracted to the object B that is more “positive”.
If you move the object B close to the object A, therefore, the toner moves onto the object B.
Object A with low potential
(Relatively negative)
Toner moves from A to B.
Object B with high potential
(Relatively positive)
On the contrary, suppose that the toner exists on the object B of which electric potential is higher
than the object A.
Even if you move the object A close to the object B, the toner continues to stay on the object B
because negative toner and relatively negative object A repel each other.
Object A with low potential
(Relatively negative)
Toner stays on B.
Object B with high potential
(Relatively positive)
Thus, the toner has a characteristic to move from one place with a lower potential to another place
with a higher potential.
If we control the electric potentials, it is possible to move the toner from one place to another as we
intend, or it is also possible to remove the toner from an unwanted place.
KIP 7170 controls the electric potentials properly working each part as Drum, Corona Units, Lamps,
Developer Unit and Cleaning Roller.
The movement of toner is controlled correctly and several processes as Development, Toner
Transfer, Drum Cleaning and etc. are performed.
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