Developing cartridge including first frame and second frame melt-bonded to first frame
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United States of America Patent
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Jan 3, 2017
Grant Date -
Aug 4, 2016
app pub date -
Sep 10, 2015
filing date -
Jan 30, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A developing cartridge includes: a developing roller; a first frame; and a second frame. The first frame includes: a first melt-bonding surface extending in a first direction; and a second melt-bonding surface positioned closer to the developing roller than the first melt-bonding surface. The second melt-bonding surface forms an obtuse angle with the first melt-bonding surface. The second frame is melt-bonded to the first frame. The second frame includes: a first wall having a third melt-bonding surface melt-bonded to the first melt-bonding surface and extending in parallel to the first melt-bonding surface; a second wall having a fourth melt-bonding surface melt-boned to the second melt-bonding surface and extending in parallel to the second melt-bonding surface; and a protruding portion having a surface intersecting the fourth melt-bonding surface and protruding in the first direction from the second wall toward the developing roller.
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