摘要:
An optical scanner, which is included in an image forming apparatus, includes a light source including a recessed portion provided on an outer circumference thereof, and a housing configured to support the light source. The housing includes a positioning unit configured to position the light source in a vertical optical axis of the light source, and a cutout provided on an inner circumference of the positioning unit. The light source is positioned to the positioning unit with the recessed portion being disposed at the cutout and then is fixed to the housing. The image forming apparatus includes an image carrier configured to form an image on a surface thereof, and the above-described optical scanner.
摘要:
An optical scanning device includes an optical housing; an elongated optical element arranged in the optical housing and having a shape extending in a main-scanning direction; a retaining member provided at a side opposite to a surface of the optical housing on which the optical element is arranged to maintain an attachment attitude of the optical element in the optical housing; a curvature adjusting unit configured to adjust a curvature of the elongated optical element in a scanning line via the retaining member; a tilt adjusting unit configured to adjust a tilt of the optical element in the scanning line by making the optical element rotate on an optical axis via the retaining member; and a positioning unit configured to position the optical element in the optical axis direction, and provided in the optical housing and having such a shape that the optical element fits the positioning unit.
摘要:
An optical writer includes a light source, an optical part, a housing, and an elastically deformable retainer. The light source projects light against a target. The optical part is disposed on a light path between the light source and the target. The housing houses the light source and the optical part. The elastically deformable retainer is detachably fixed to the housing and includes a plurality of contact portions on an inner surface of the retainer to hold the optical part. The retainer elastically deforms to separate at least one of the contact portions from other contact portions to hold the optical part by the plurality of contact portions.
摘要:
A curve correction mechanism for correcting a direction and degree of curvature of a reflecting mirror that reflects a light beam includes an adjuster to contact and move a pressing member between a first position, where a first pressing portion of the pressing member presses against an outboard portion of the reflecting mirror provided outboard from a support that supports the reflecting mirror in a longitudinal direction of the reflecting mirror while a second pressing portion of the pressing member is isolated from the reflecting mirror, and a second position, where the second pressing portion of the pressing member presses against an inboard portion of the reflecting mirror provided inboard from the support while the first pressing portion of the pressing member is isolated from the reflecting mirror.
摘要:
An optical scanning device of opposed scanning type, includes: a plurality of light sources, being arranged substantially symmetrically about a rotating deflection unit; a group of pre-deflection optical elements including optical elements that make the light beams incident on the rotating deflection unit; and scanning optical systems which are distributed to right and left with the rotating deflection unit as an axis of symmetry, wherein optical elements of the respective scanning optical systems are arranged substantially symmetrically about the rotating deflection unit, wherein a plurality of rib structures are arranged on respective areas of an optical housing substrate, the areas extends from the respective light sources to a vicinity of the rotating deflection unit, and the plurality of rib structures are arranged asymmetrically in the right and left optical systems with the rotating deflection unit as the axis of symmetry.
摘要:
An optical scanner includes a light source for projecting a light beam against a target, a deflector for deflecting the light beam, a coupling lens, an optical element, a light source support member, and a housing. The coupling lens directs the light beam to the deflector. The optical element focuses the light beam deflected by the deflector into a desired shape. The light source support member supports the light source. The housing houses the light source supported by the light source support member, the deflector, and the optical elements. The housing includes at least two coupling lens mounts on which the coupling lens is fixed on an optical path between the light source and the target, and accommodates multiple light source support members. The coupling lens is fixed to the coupling lens mount using an adhesive agent after an optical axis of the light beam is aligned.
摘要:
An optical scanner includes a light source, an optical part, an enclosure, and a retainer. The light source projects light against a target. The optical part is disposed on a light path between the light source and the target. The enclosure houses the light source and the optical part. The retainer is fixed to the enclosure and includes a plurality of optical part mounts of identical shape and different sizes. The optical part is adhered to one of the plurality of optical part mounts.
摘要:
An optical scanning device includes: a light source; a polygon scanner that deflects a light beam output from the light source; and various types of optical elements for focusing the light beam deflected by the polygon scanner onto a desired position on a surface to be scanned, wherein a hole or a thin-walled portion that is provided on an arrangement surface of an optical housing on which the polygon scanner and an optical element having power in a sub-scanning direction are arranged, wherein the hole or a thin-walled portion extends along a main-scanning direction, and is provided near to the optical element having power in the sub-scanning direction between the polygon scanner and the optical element having power in the sub-scanning direction.
摘要:
An optical writer includes a light source, an optical part, a housing, and an elastically deformable retainer. The light source projects light against a target. The optical part is disposed on a light path between the light source and the target. The housing houses the light source and the optical part. The elastically deformable retainer is detachably fixed to the housing and includes a plurality of contact portions on an inner surface of the retainer to hold the optical part. The retainer elastically deforms to separate at least one of the contact portions from other contact portions to hold the optical part by the plurality of contact portions.
摘要:
An optical scanner includes a light source, an optical part, a housing, and a retainer. The light source projects light against a target. The optical part is disposed on a light path between the light source and the target. The housing houses the light source and the optical part. The retainer fixed to the housing holds the optical part and includes a plurality of flanges disposed along an outer circumference of the retainer. One of the plurality of flanges of the retainer is adhered to the housing an adhesive agent. An image forming apparatus includes the optical scanner.