Developing apparatus and image forming apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 13, 2016
Grant Date -
Nov 26, 2015
app pub date -
May 18, 2015
filing date -
May 23, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A developing apparatus includes a developer bearing member which bears a developer, a developing container that includes a developer circulation path, a conveying member which is rotatably installed in the circulation path, and an outlet which is formed on a side surface of the circulation path facing the conveying member to discharge the developer. The conveying member includes a rotating shaft and a helical blade portion which is formed around the rotating shaft. The conveying member has a first region including a region facing the outlet and a second region adjacent to the first region at an upstream in a conveying direction of the conveying member. The helical blade portion is not formed in the first region, a protruding portion protruding from the rotating shaft is formed in at least a part of the first region, and the helical blade portion is formed in the second region.
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