Patent ID: 7840159
Filing Date: 2010-11-23
Classification: G03G

Abstract:
1. An image-forming device comprising: a first photosensitive drum that is rotatable about an axis parallel to a first direction, the photosensitive drum having a latent image region in which the latent image is formable, the first photosensitive drum extending in the first direction; a first exposure unit that includes: a plurality of light-emitting elements arrayed along the first direction, the latent image being formed in the latent image region by light emitted from the plurality of light-emitting elements thereonto, an image being formed on a recording medium based on the latent image in the latent image region; and a gap-regulating unit that regulates a gap between the plurality of light emitting elements and the first photosensitive drum, the gap regulating unit including two guide rollers that contact with the photosensitive drum at positions outside the latent image region; a first frame that includes a first plate-shaped part having a surface orthogonal to the first direction and supports the first photosensitive drum, the first plate-shaped part being formed with at least two first positioning holes, each of the at least two first positioning holes being defined by a first inner surface that extends in the first direction; and a first supporting unit that erects from the first plate-shaped part and includes: wherein the first exposure unit is oriented in a direction in which the light emitted from the plurality of light emitting elements is directed toward a second direction orthogonal to the first direction.