Image forming apparatus
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United States of America Patent
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Sep 15, 2015
Grant Date -
May 14, 2015
app pub date -
Nov 5, 2014
filing date -
Nov 13, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
In an image forming apparatus having a photosensitive drum capable of carrying a toner image, a developing roller that is provided to be capable of rotating while carrying toner, and that supplies the toner to the photosensitive drum by contacting the photosensitive drum, a regulating blade that regulates a layer thickness of the toner carried on the developing roller, and a voltage applying device for applying a voltage to the developing roller and the regulating blade. The developing roller includes a conductive base layer and a surface layer covering the base layer, and a surface charge density of the developing roller is equal to or smaller than a surface charge density of the toner.
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