Toner conveyance device and image forming apparatus incorporating same
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United States of America Patent
Stats
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May 29, 2012
Grant Date -
Jun 10, 2010
app pub date -
Nov 25, 2009
filing date -
Dec 5, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In a toner conveyance device, a first agitator contacts a helical outer circumferential surface of a blade of a conveyance member for conveying toner, and swings in coordination with rotation of the conveyance member to agitate the toner. The first agitator includes a body for bending and swinging in a bending direction perpendicular to an axial direction of the conveyance member, and a protrusion for protruding from the body in a protrusion direction opposite the bending direction of the body. The protrusion includes a basal portion adjacent to the body, a convex portion protruding from the basal portion, and a protrusion front edge surface having a distance from the body changing in a toner conveyance direction, and contacts the helical outer circumferential surface of the helical blade of the conveyance member.
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