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| Number | Title | Issue Date |
| 8174747 | Optical scanning apparatus and image forming apparatus An optical scanning apparatus for scanning a surface to be scanned includes: a light source that emits laser beam; a deflector that deflects the laser beam emitted from the light source; a plurality of optical scanning elements that introduce the deflected laser bea... | 05/08/2012 |
| 8169457 | Light source apparatus, optical-beam scanning apparatus, and image forming apparatus A light source apparatus includes a circuit board on which a light source unit including a vertical-cavity surface-emitting light source and a package that houses the vertical-cavity surface-emitting light source is mounted, an optical element holder that holds a pl... | 05/01/2012 |
| 8059148 | Light source device and manufacturing method thereof A light source device includes: a semiconductor laser; a coupling lens; a holder; and a photopolymerizable resin. The coupling lens converts laser light from the semiconductor laser to a light flux, the coupling lens having a first side and a second side opposite to... | 11/15/2011 |
| 8054326 | Laser exposure device and optical axis adjustment method in laser exposure device In a laser exposure device according to the present invention, a positioning pin, which is formed in a lens holder supporting a lens system, is inserted through an elongated hole for restriction of a board holder supporting a laser diode. An eccentric cam is inserte... | 11/08/2011 |
| 8040368 | Image forming apparatus An image forming apparatus is provided. The image forming apparatus includes: a photosensitive member on which an electrostatic latent image is to be formed; a first body which rotatably supports the photosensitive member; an exposing unit which exposes the photosen... | 10/18/2011 |
| 8035677 | Optical scanning apparatus In an optical scanning apparatus, when air flow from a deflecting device is suppressed by a shielding member such as a transparent member, an image of a light beam is not formed at a predetermined position. In view of this, a first wall portion having a wall surface... | 10/11/2011 |
| 8004551 | ROS deskew mechanism In a color marking assembly, a series of ROS units are aligned above a photoconductive surface. These units have inboard and outboard mounts connecting them to this assembly. The inboard mounts are attached to a first side of the ROS, and the outboard mounts are att... | 08/23/2011 |
| 8004552 | Optical scanning device and image forming apparatus In an optical scanning device having a lens within a housing, the attachment of the lens to the housing is facilitated. The occurrence of lens distortion and warpage is prevented when the lens is formed by an injection molding apparatus. The lens is a long lens elon... | 08/23/2011 |
| 7982761 | Image forming apparatus having exposing unit positioning member An image forming apparatus is provided. The image forming apparatus includes: plural photosensitive members; plural exposing units opposed to the photosensitive members, respectively, each of the exposing units including a plurality of light emitting elements arrang... | 07/19/2011 |
| 7847811 | Optical scanner An optical scanner includes a frame, a light source, an optical member, and a spacer. The light source emits a light beam. The optical member is mounted on the frame to guide the light beam to a scanning target. The spacer maintains the optical member at a predeterm... | 12/07/2010 |
| 7825946 | Image forming apparatus 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... | 11/02/2010 |
| 7817177 | Optical scanning device and image forming apparatus An optical scanning device includes a light source, a deflector that deflects a light beam from the light source, a first optical system that guides the light beam to the deflector, a second optical system that guides the light beam from the deflector to a surface t... | 10/19/2010 |
| 7791633 | Optical scanning unit and image forming apparatus An optical scanning unit irradiates a polygon mirror with a plurality of light beams emitted from a light source according to image data, and scans and exposes a plurality of photoreceptors with the plurality of light beams as scanning lights. The optical scanning u... | 09/07/2010 |
| 7782354 | Optical writing device and image forming apparatus An electrophotographic optical writing device equipped with a semiconductor laser includes the semiconductor laser, a collimating lens, an aperture, a cylindrical lens, and a polygon scanner. An additional aperture, a second aperture, is provided in a light path bet... | 08/24/2010 |
| 7782352 | Optical scanning device and image forming apparatus An optical scanning device that uses a light spot to scan an image surface with a light source, a deflector, and an imaging element includes a housing in which the light source, the deflector, and the imaging element are set. The housing includes at least two sidewa... | 08/24/2010 |
| 7782353 | Image-forming device An image-forming device has cylindrical image-carrying members, and an optical scanning unit. The cylindrical image-carrying members are in a main casing for rotating about respective rotational axes which are parallel to one another and juxtaposed in a single direc... | 08/24/2010 |
| 7777775 | Optical beam scanning apparatus, image forming apparatus In an optical beam scanning apparatus and an image forming apparatus equipped with the optical beam scanning apparatus of the present invention, a holder base is screwed to an optical housing, a holder holds a light source, and a laser drive board is screwed to the ... | 08/17/2010 |
| 7760226 | ROS Deskew Mechanism with linear actuator In a color marking assembly, a series of ROS units are aligned above a photoconductive surface. These units have side mounts and a side positioned outboard linear actuator connecting them to this assembly. The inboard mounts are attached to a first inboard side of t... | 07/20/2010 |
| 7760225 | Image forming apparatus, optical writing device, and housing molding method providing simple structure An image forming apparatus includes an electrostatic latent image carrier, and an optical writing device including at least one light source, at least one aperture, at least one light shield, a light deflector, an image forming lens, and a housing. The aperture adju... | 07/20/2010 |
| 7750932 | Exposing device and image forming apparatus having the same A light source, a polygon mirror mechanism, a deflection lens, and a mirror unit are housed in a casing. The mirror unit includes a base member of metal fixed to the casing and a mirror supporting plate attached to the base member. The mirror supporting plate is for... | 07/06/2010 |
| 7746371 | Optical writing device and image forming apparatus An optical writing device that writes electrostatic latent images on an image carrier by irradiating and scanning the image carrier with an optical beam includes an optical element, a support housing configured to support members constituting the optical writing dev... | 06/29/2010 |
| 7733365 | Imaging apparatus having print engine that includes MEMS device An imaging apparatus includes a controller executing instructions to form a latent image, and a print engine. The print engine includes a laser source, a micro-electromechanical system (MEMS) device, and a module for mounting the MEMS device. The print engine is com... | 06/08/2010 |
| 7719561 | Optical member coupling device and optical scanning apparatus An optical scanning apparatus includes a light source to generate a beam, a lens to transmit the beam generated from the light source, and a base member to which the lens is fixed, wherein the lens is fixed to the base member via a mount member having a same coeffic... | 05/18/2010 |
| 7705871 | Optical writing device and image forming apparatus including the optical writing device that prevents scattered toner and powder dust from entering the optical writing device An image forming apparatus includes an optical writing device. The optical writing device includes an optical writing unit that emits laser light beams toward image carriers, an outer case that accommodates the optical writing unit, and air supplying devices that su... | 04/27/2010 |
| 7663656 | Optical scanning device and image forming apparatus including same An optical scanning device including a first housing including a rotating deflector configured to deflect a light beam from at least one light source to scan a surface to be scanned with a deflected light beam, a second housing including one or more reflecting mirro... | 02/16/2010 |
| 7649543 | Image forming device with LED array head A head moving mechanism includes a head connecting member, a contact member, and a linking mechanism. An LED array head is attached to the head connecting member. The contact member is movable in the vertical direction, and the linking mechanism moves the head conne... | 01/19/2010 |
| 7619799 | Light scanning device and image forming apparatus using the same In an exposure unit including: a laser scanning unit emitting a multiple number of beams; a polygon mirror for deflecting the multiple beams by reflection with the same facet; an optical system including optical elements for leading the beams correspondingly to a mu... | 11/17/2009 |
| 7557821 | Laser exposure device and optical axis adjustment method in laser exposure device In a laser exposure device according to the present invention, a positioning pin, which is formed in a lens holder supporting a lens system, is inserted through an elongated hole for restriction of a board holder supporting a laser diode. An eccentric cam is inserte... | 07/07/2009 |
| 7528856 | Image forming apparatus, optical scanning device and manufacturing method of optical scanning device An optical scanning device that emits a light beam and scans a scanning subject with the light beam, includes: a holder mounted with a light source that emits the light beam, a collimator lens that converts the emitted light beam to approximately collimated beam, an... | 05/05/2009 |
| 7528857 | Apparatus for supporting optical component, and laser scanner and image forming device having the same An apparatus for supporting an optical component that stably and precisely mounts the optical component for reflecting or permeating a beam emitted from a light source on a frame, and a laser scanner and an image forming device having the same, respectively. The las... | 05/05/2009 |
| 7515167 | Multi-beam scanning device and image forming apparatus using the scanning device In a multi-beam scanning device including a laser diode array having three or more light emitting points, the interval Pi between one of the three or more light emitting points and the adjacent light emitting point is set so as to be not greater than the minimum rec... | 04/07/2009 |
| 7502046 | Optical scanning unit and image forming apparatus According to the present invention, highly accurate adjustment of the angles and positions of optical elements constituting an optical scanning unit can be easily performed. The optical scanning unit comprises: a first mirror that reflects the light beams emitted fr... | 03/10/2009 |
| 7450142 | Scanning optical device with post-deflection diffraction element supported by an end-side swing member to suppress vibration In a scanning optical device which deflects a light flux from a light source with a deflection scanning unit to perform light scanning to a body to be scanned through at least one optical member, the scanning optical device is characterized by including a holding me... | 11/11/2008 |
| 7440001 | Optical writing device and image forming apparatus An optical writing device includes a polygon mirror configured to guide a light beam emitted from a light source. The polygon mirror is disposed in a case. The case includes a cover unit and a pressure unit configured to exert pressure on the cover unit. Pressure ex... | 10/21/2008 |
| 7414644 | Image forming device An image forming device includes a main frame having a body and a photoconductive drum which is provided removably in the main frame. An optical writing head is provided which is positioned relatively with respect to the photoconductive drum and includes a lens arra... | 08/19/2008 |
| 7411710 | Optical beam scanning device and image forming apparatus An optical beam scanning device is configured from a deflecting unit that has a function to support a deflecting member and a light source, including an exposing semiconductor laser, a polygon mirror, a first fθ lens and a second fθ lens, and strictly regulate the... | 08/12/2008 |
| 7397492 | Image forming device An image forming device includes a photoconductive drum that is removably provided in a main frame. An optical writing head includes positioning pins and is positioned relatively to the photoconductive drum. A paper guide member includes positioned parts and is fixe... | 07/08/2008 |
| 7379086 | Polygon mirror unit having a seal member with slits positioned between a central portion and a peripheral portion The present invention provides a laser unit using a seal member whose central and peripheral portions will not affect each other to produce strain during mounting and which can be handled as a single component. In the laser unit 100 according to the pr... | 05/27/2008 |
| 7375847 | Optical scanning device and image forming apparatus using the same An optical scanning device has: a first optical system for converting a flux of light that has been emitted from a light source into another flux of light; a second optical system for focusing the flux of light that has been converted by the first optical system as ... | 05/20/2008 |
| 7369149 | Image recording method and image recording device for correcting optical magnification errors An image recording method of recording an image onto an image recording surface by dot patterns by scanning a recording head having recording element units arranged in a direction intersecting a scanning direction, the recording element units having a light source a... | 05/06/2008 |
