Controlling The Movement Of Toner In The Developer Unit - KIP 9000 Service Manual

3. 3 Controlling the Movement of Toner
in the Developer Unit
Developer Unit is provided with 3 rollers "Developer Roller", "Regulation Roller" and "Toner Supply
Roller", which are provided with their own Bias respectively as the following table. The voltage of
the Developer Roller (-YV) is measured against the ground, and the voltages for other items are
the difference against the Developer Roller Bias (-YV).
Name of roller
Developer Roller
Regulation Roller (Center)
Regulation Roller (Sides)
Toner Supply Roller
Regulation Roller : Side
(+365V against Developer Roller Bias)
Developer Roller
(-YV against GND)
NOTE
The insulator divides the Regulation Roller into "Centrer" and "Side". Different voltage is
provided to them respectively.
Supplied voltage
-Y +/-3V against the ground
-100 +/-5V against the Developer Roller Bias
+365 +/-3V against the Developer Roller Bias
-350 +/-3V against the Developer Roller Bias
Insulator
Toner Supply Roller
(-350V against Developer Roller Bias)
3-15
Regulation Roller : Center
(-100V against Developer Roller Bias)
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