摘要:
An image forming apparatus is provided, which includes: a photosensitive member; an exposure member; a support frame supporting the exposure member; a gap keeping member; a pressing member; and an adjustment member. The adjust member is disposed between the exposure member and the support frame and configured to adjust a gap between the exposure member and the support frame to allow the exposure member to move in an optical axis direction.
摘要:
An exposure apparatus which exposes an object includes an exposure member which has a plurality of blinking sections and which is elongated in a predetermined longitudinal direction; a support frame which supports the exposure member; a holder which supports the support frame to be movable relative to the holder; and a pressing member which is provided between the holder and the support frame and which presses the support frame in a direction away from the holder. Accordingly, the exposure apparatus can suppress the deformation of the exposure member.
摘要:
An image forming apparatus includes a photoconductive body on which an electrostatic latent image is formed; an exposure member which has a plurality of blinking sections and which exposes the photoconductive body; a support frame which is made of resin and which supports the exposure member; a roller shaft which is made of metal and provided on the support frame; a roller which is made of resin, which is rotatably provided on the roller shaft and which maintains a spacing distance between the exposure member and the photoconductive body; and a metal plate which supports and is electrically connected to the roller shaft and which is electrically grounded. With the image forming apparatus, it is possible to solve a problem caused when the roller shaft is electrically floated, and to suitably arrange parts or components around the roller shaft.
摘要:
There is provided an exposure device including an exposure head having a light-emitting member which has a plurality of light-emitting sections arranged in a row and a casing which holds the light-emitting member and which is elongated in a longitudinal direction orthogonal to an optical axis direction of a light emitted from the light-emitting sections; and an elongated frame member fixed to the casing and having a reference portion at which the frame member is positioned with respect to the light-emitting sections; wherein the frame member is fixed to the casing such that the frame member is positioned with respect to the light-emitting sections in both of the longitudinal direction and a width direction of the casing, the width direction being orthogonal to the longitudinal direction and the optical axis direction. The exposure device is capable of performing exposure precisely at a desired exposure position.
摘要:
An image forming apparatus includes a photoconductive body on which an electrostatic latent image is formed, an exposure unit which exposes the photoconductive body, a first pressing member which presses the exposure unit toward the photoconductive body, a first positioning member which makes a contact with the exposure unit, a second positioning member which is arranged at a side nearer to the photoconductive body than the first positioning member in an optical axial direction of light, and a second pressing member which presses the exposure unit toward the second positioning member. A point of action at which the first pressing member presses the exposure unit is positioned at a side nearer to the photoconductive body, than the first positioning member in the optical axial direction. It is possible to suppress a degradation of an image quality by suppressing an effect of vibrations with respect to the exposure unit.
摘要:
An image forming apparatus is provided, which includes: a photosensitive member; an exposure member; a support frame supporting the exposure member; a gap keeping member; a pressing member; and an adjustment member. The adjust member is disposed between the exposure member and the support frame and configured to adjust a gap between the exposure member and the support frame to allow the exposure member to move in an optical axis direction.
摘要:
An image forming apparatus includes: a photosensitive body which is moved in a movement direction; an exposing unit which exposes the photosensitive body, and which includes a guide roller configured to contact with the photosensitive body and rotate with a movement of the photosensitive body and configured to regulate a positional relationship with the photosensitive body, the guider roller being disposed such that a rotation direction of the guide roller is inclined with respect to the movement direction so as to generate a force for urging the exposing unit to one end thereof in an orthogonal direction when the guide roller rotates, the orthogonal direction being orthogonal to the movement direction and to an optical axis direction of a light emitted from the exposing unit; and a regulating member configured to contact with the one end of the exposing unit to regulate a position of the exposing unit.
摘要:
An image forming apparatus includes: a photosensitive body which is moved in a movement direction; an exposing unit which exposes the photosensitive body, and which includes a guide roller configured to contact with the photosensitive body and rotate with a movement of the photosensitive body and configured to regulate a positional relationship with the photosensitive body, the guider roller being disposed such that a rotation direction of the guide roller is inclined with respect to the movement direction so as to generate a force for urging the exposing unit to one end thereof in an orthogonal direction when the guide roller rotates, the orthogonal direction being orthogonal to the movement direction and to an optical axis direction of a light emitted from the exposing unit; and a regulating member configured to contact with the one end of the exposing unit to regulate a position of the exposing unit.
摘要:
A device for holding a laser diode (LD) and a collimate lens. A laser unit includes an LD supporting section supporting the LD, and a lens supporting section supporting the lens positioned opposite to the LD. A connecting portion connects the lens supporting section to the LD supporting section. An adjustment section for adjusting a relative position between the LD and the lens is provided in association with the LD supporting section. The adjustment section allows the LD supporting section to be movable and position-fixable with respect to the lens supporting section as if the LD supporting section serves as a leverage about the connecting portion functioning as a fulcrum.
摘要:
A device for holding a laser diode (LD) and a collimate lens. A laser unit includes an LD supporting section supporting the LD, and a lens supporting section supporting the lens positioned opposite to the LD. A connecting portion connects the lens supporting section to the LD supporting section. An adjustment section for adjusting a relative position between the LD and the lens is provided in association with the LD supporting section. The adjustment section allows the LD supporting section to be movable and position-fixable with respect to the lens supporting section as if the LD supporting section serves as a leverage about the connecting portion functioning as a fulcrum.