Oblon, McClelland, Maier & Neustadt, L.L.P.
Developing device, process cartridge, and image forming apparatus including same
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the downstream developing roller has a most approachable surface that approaches closest to the image bearer and a most withdrawn surface that withdraws farthest from the image bearer.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of the upstream developing roller at the first developing position, the reference surface point opposes the most withdrawn surface of the downstream developing roller at the second developing position.
Ricoh Company, Ltd.
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G03G G03G G03G
inventional inventional additional
Tadashi Yukio Hiroyuki Hiroaki Hiroshi Junichi Hideki
Ogawa Otome Mabuchi Okamoto Kikuchi Terai Kimura