DEVELOPMENT DEVICE AND IMAGE FORMING DEVICE
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United States of America Patent
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Issued Date -
Nov 7, 2019
app pub date -
May 17, 2019
filing date -
Dec 19, 2016
priority date (Note) -
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Abstract
An image forming apparatus includes a developer carrying body to transfer developer to a photosensitive body. The developer carrying body has an outer circumference and grooves spaced apart along the outer circumference. The grooves occupy 27% or more of the outer circumference. The developing carrying body is rotatable in a rotational direction that imparts the developing carrying body with a direction of movement that is opposite to a direction of movement of the photosensitive body, at a position between the developer carrying body and the photosensitive body.
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