Image Foming Device
First Claim
1. 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, for allowing 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 also allowing the developing units to be pressed in a direction where the developing agent carriers contact with the image carriers in a state of the developing units being in the contact positions; and
a synchronous movement mechanism for allowing the pair of translation cam members to linearly move in synchronization.
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0 Petitions
Accused Products
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 comprises 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.
79 Citations
16 Claims
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1. An image forming apparatus comprising:
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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, for allowing 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 also allowing the developing units to be pressed in a direction where the developing agent carriers contact with the image carriers in a state of the developing units being in the contact positions; and
a synchronous movement mechanism for allowing the pair of translation cam members to linearly move in synchronization. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification