Seal configuration for suppressing developer leakage in a developing device
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United States of America Patent
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Aug 25, 2015
Grant Date -
Jun 5, 2014
app pub date -
Nov 27, 2013
filing date -
Nov 30, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A developing device including: a first seal member arranged between a housing and a layer thickness regulation blade, and a second seal member arranged between the housing and a developing roller, wherein the first seal member is arranged adjacent to the second seal member in a rotating direction of the developing roller, wherein the second seal member includes a first member contacting a circumferential surface of the developing roller and a second member arranged between the housing and the first member, wherein the second member includes a protruding portion that, in the rotating direction of the developing roller, protrudes more towards the first seal member than the first member, and wherein end portions of the first and second members in the rotating direction of the developing roller are respectively configured to contact with the first seal member.
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