Developing device having developing roller and thickness-regulating blade
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United States of America Patent
Stats
-
Mar 7, 2017
Grant Date -
Sep 8, 2016
app pub date -
Mar 3, 2016
filing date -
Mar 4, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a developing device, a developing roller has a circumferential surface and an axial end portion. A thickness-regulating blade includes a pressing part protruding to contact the circumferential surface. A first sealing member is provided between a housing and the axial end portion, and includes a first layer; and a second layer. The first layer has a first layer surface disposed to contact the circumferential surface. The second layer supports the first layer and has a protruding part protruding inward of the first layer in an axial direction of the developing roller and having a second layer surface opposing the circumferential surface. The housing has a wall part disposed between the pressing part and the protruding part in the rotating direction of the developing roller. The wall part has an opposing surface opposing the circumferential surface. A lubricant is applied to the first layer surface and the second layer surface.
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