Patent ID: 9335708
Filing Date: 2016-05-10
CPC Classification: G03G

Claim Text:
1. An imaging unit, comprising: a support body; a photoconductor supported by the support body; a developing device supported by the support body to be able to swing about a pivot arranged at a pivot portion, and including a development roller having a gap holding member that contacts a portion of the photoconductor and holds a gap between the development roller and the photoconductor; and a driven coupling member that is provided at a first end portion of the development roller, is coupled in a removably inserted manner to a driving coupling member to which a rotational power is transmitted, and transmits the rotational power to the development roller, wherein the pivot portion is arranged at a position at which the developing device swings in a direction toward the photoconductor by a self weight of the developing device, wherein the driving coupling member or the driven coupling member is a member in a form having at least three protruding portions that restrict movement of the developing device in a rotation direction when the driving coupling member and the driven coupling member are coupled, and wherein the development roller rotates in a direction in which an action that causes the developing device to swing in the direction toward the photoconductor is generated when the development roller receives the rotational power from the driving coupling member and is rotationally driven.