Developing unit and density control method in...

Electrophotography – Control of electrophotography process – Control of developing

Reexamination Certificate

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C399S237000, C399S240000, C430S117200

Reexamination Certificate

active

07024126

ABSTRACT:
A developing unit maintains constant density in an electrophotographic imaging process. The developing unit has:a) a developer with a developing surface and a first voltage is applied to the developer;b) a depositor, wherein said depositor is positioned to maintain a gap with the developer and a second voltage is applied to the depositor;c) a cleaning device for said developer, wherein the cleaning device is in contact with the developer; andd) an ink container, wherein the developer, the depositor and the cleaning device are inside the ink container.

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patent: 09-015982 (1997-01-01), None
patent: 2000-199996 (2000-07-01), None

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