Image forming apparatus with translation cam member
AssigneeBrother Kogyo Kabushiki Kaisha
InventorNaoya Kamimura
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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 synchronization.
Claims8
An image forming apparatus comprising:
- an apparatus body;
- a plurality of image carriers arranged in parallel with each other for their respective colors;
- a plurality of developing units provided correspondingly for the respective image carriers, each having a developing agent carrier for supplying a developing agent to the corresponding image carrier;
- a pair of translation cam members disposed opposite to each other across the plurality of developing units and adapted to be linearly movable in an arranging direction of the image carriers, the pair of translation cam members being configured to allow the developing units to shift to contact positions where the developing agent carriers contact with the image carriers and detached positions where the developing agent carriers detach from the image carriers;
- and
- a synchronous movement mechanism configured to allow the pair of translation cam members to linearly move in synchronization.
Dependencies are inferred from the claim text.