Developing device, process cartridge, and image forming apparatus including same
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United States of America Patent
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Dec 27, 2016
Grant Date -
Jul 14, 2016
app pub date -
Dec 29, 2015
filing date -
Jan 9, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A developing device to develop a latent image on a rotatable image bearer includes an upstream developing roller disposed opposite the image bearer at a first developing position, and a downstream developing roller disposed adjacent to and downstream from the upstream developing roller in a direction of rotation of the image bearer, disposed opposite the image bearer at a second developing position. Each of the upstream developing roller and the downstream developing roller has a most approachable surface that approaches closest to the image bearer and a most withdrawn surface that withdraws farthest from the image bearer. In a state in which a reference surface point of the image bearer is disposed opposite the most approachable surface of the upstream developing roller at the first developing position, the reference surface point opposes the most withdrawn surface of the downstream developing roller at the second developing position.
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