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b. Development section
No.
Parts
Note
Name Type Function/operation
1 Developing roller Attaches toner to the latent electrostatic
images on the OPC drum to convert it into
a visible image.
2 Developing doctor Controls toner quantity on the developing
roller and charges toner.
3 Developing bias
electrode
Connects the developing roller and the bias
voltage output (high voltage PWB).
4 Potential control
electrode
Connects the developing roller and the bias
voltage output (high voltage PWB).
5 Toner stirring roller Lead toner to the developing roller and
charges toner.
6 Zenor diode Maintains the potential between the
developing roller and the toner stirring roller
at a constant level.
7 Toner seal Shields toner from leaking outside the
developing unit.
8 Potential control sheet Maintains the developing roller potential at
a constant level.
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