Electrophotography – Image formation – Development
Reexamination Certificate
2006-12-20
2009-06-30
Chen, Sophia S (Department: 2852)
Electrophotography
Image formation
Development
C399S112000, C399S223000
Reexamination Certificate
active
07555245
ABSTRACT:
An image forming apparatus includes a detaching and pressing mechanism for releasing developing rollers of developer cartridges mounted in a drum unit from photosensitive drums and pressing the developing rollers on the photosensitive drums. The detaching and pressing mechanism includes a pair of translation cam members, intermediate members provided on the translation cam members, cam holders for holding the translation cam members in such a manner as to be linearly movable in an anteroposterior direction, and a synchronous movement mechanism for allowing the pair of translation cam members to linearly move in synchroniztion.
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Banner & Witcoff , Ltd.
Brother Kogyo Kabushiki Kaisha
Chen Sophia S
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