Drum unit
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United States of America Patent
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Jan 30, 2018
Issued Date -
N/A
app pub date -
Feb 28, 2017
filing date -
Feb 29, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A drum unit, to which a developer cartridge with a developer roller and a protrusion protruding in an axial direction of the developer roller is attachable, is provided. The drum unit includes a casing, a photosensitive drum to contact the developer roller, a first guide arranged to confront the protrusion along a direction orthogonal to the axial direction when the developer cartridge is attached to the casing to guide the protrusion, a second guide movable between a first position and a second position to guide the protrusion and arranged to confront the protrusion along the orthogonal direction when the developer cartridge is attached to the casing, and an urging member to urge the second guide in a direction from the first position toward the second position. The second guide includes a contact part to contact the first guide when the second guide is in the second position.
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