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| Number | Title | Issue Date |
| 8027075 | Optical scanning unit and image forming apparatus incorporating same An optical scanning unit used for scanning a photoconductor includes a light source, a rotatable deflector, a driver, a scan lens, an optical element, a first casing, a second casing, a first cover, and a second cover. The rotatable deflector deflects a light beam g... | 09/27/2011 |
| 7911669 | Optical scanning device and image forming apparatus using the same An optical scanning device includes a condensing optical system for collecting a light beam emitted from light source means, a deflecting system for scanningly deflecting the light beam collected by the condensing optical system, and an imaging optical system config... | 03/22/2011 |
| 7760409 | Optical beam scanning apparatus and image forming apparatus An image forming apparatus provided with an optical beam scanning apparatus according to the invention includes a semiconductor laser device, a pre-deflection optical system, a polygon mirror, and a post-deflection optical system, wherein at least one imaging lens f... | 07/20/2010 |
| 7679802 | Optical scanner configured so a principal ray of an incident beam from a light source to a deflector and a principal ray of a scanning beam from the deflector to a scanned surface travel on opposite sides of an optical axis of optical element(s) having transmissive surfaces both concave toward the deflector in sub-scanning section, and image forming apparatus using the same Optical scanners are configured so a principal ray of an incident beam from a light source device to a deflector and a principal ray of a scanning beam from the deflector to a scanned surface travel on the opposite sides of an optical axis of an optical element(s) w... | 03/16/2010 |
| 7646523 | Optical scanning apparatus and image forming apparatus using same An optical scanning apparatus allowing reduction in the size of the overall apparatus and the size of an imaging optical system LB with the use of an optical deflector that swings back-and-forth and an image forming apparatus using such an optical scanning apparatus... | 01/12/2010 |
| 7557974 | Optical scanning apparatus and image forming apparatus using the same including relationship between interval between deflector and scanned surface and a natural convergent point A compact optical scanning apparatus capable of desirably correcting an f characteristic, a field curvature, and other aberrations, and an image forming apparatus using the same, which includes an incident optical system (LA) for guiding a beam from a light source (... | 07/07/2009 |
| 7554709 | Optical scanning apparatus and image forming apparatus employing this apparatus An optical scanning apparatus including a light source, deflection unit configured to deflect a light flux emitted by the light source, a first optical system configured to condense a divergent light flux emitted by the light source, a second optical system configur... | 06/30/2009 |
| 7551338 | Optical scanning apparatus and image-forming apparatus An optical scanning apparatus includes a light-source unit, an incident optical system for directing light beams emitted from the light-source unit to a deflecting unit, and an imaging optical system for guiding the light beams deflected from the deflecting unit to ... | 06/23/2009 |
| 7460146 | Dynamic correction of field curvature from a scanner Systems and methods are described that dynamically correct field curvature and other focus errors in imaging systems that use rotating scanners to scan an image field. The dynamic correction controls the focusing of an image field such that focus is maintained acros... | 12/02/2008 |
| 7443415 | Optical beam scanning device and image forming apparatus having window for polygon mirror cover An optical beam scanning device includes a light deflecting device with at least a polygon mirror portion of which is covered by a cover having a cover window portion for keeping a passage for an entering/emitting light, a pre-deflection optical system for entering ... | 10/28/2008 |
| 7443557 | Optical beam scanning apparatus and image forming apparatus An image forming apparatus provided with an optical beam scanning apparatus according to the invention includes a semiconductor laser device, a pre-deflection optical system, a polygon mirror, and a post-deflection optical system, wherein at least one imaging lens f... | 10/28/2008 |
| 7428088 | Optical scanning apparatus and method for adjusting the same An optical scanning apparatus which is free from any deterioration of drawing performance and which can be miniaturized and simplified in overall configuration, and an image forming apparatus using the optical scanning apparatus are provided. The optical scanning ap... | 09/23/2008 |
| 7420583 | Image forming apparatus and control method therefor There is provided an image forming apparatus which is capable of reducing a period of time required for obtaining an image output, in the case of changing the image forming operation from a monochromatic image formation to a color image formation during execution of... | 09/02/2008 |
| 7417777 | Optical scanning device and image forming apparatus A coupling lens arranged on an optical path of an optical beam from a VCSEL, which has a refraction plane and a diffraction plane that respectively change a power according to a temperature change and suppresses a beam-waist position change in a main-scanning direct... | 08/26/2008 |
| 7408689 | Light scanning unit and image forming apparatus employing the same A light scanning unit includes a light source which emits light beam with a predetermined wavelength, a beam deflector which deflects and scans the light beam emitted by the light source toward a photosensitive body, and an f-θ lens which has at least one plastic l... | 08/05/2008 |
| 7400338 | Image forming apparatus with temperature detection An image forming apparatus including: an optical scanning unit for deflecting and scanning a light on a photosensitive body, the optical scanning unit having: a light source for emitting the light; a deflection section that deflects the emitted light; a driving sect... | 07/15/2008 |
| 7397590 | Optical scanning apparatus and image forming apparatus employing this apparatus At least one exemplary embodiment is directed to an optical scanning apparatus that employs a short wave light source to constantly maintain a spot having a tiny diameter, even when an environmental temperature change occurs, by employing a lens and/or a diffractive... | 07/08/2008 |
| 7364264 | Inkjet printer cradle with single drive motor performing multiple functions An inkjet printer cradle complementary to an inkjet printer cartridge of a type including a pagewidth printhead, said cradle including an air compressor for producing air to be directed over the pagewidth printhead, a print media transport assembly arranged to conve... | 04/29/2008 |
| 7362487 | Optical element and optical scanning device using the same Provided is an optical element capable of reducing Fresnel (surface) reflection on a lens surface which causes flare or ghost, an optical system including the optical element, and an optical scanning device including the optical element. The optical element includes... | 04/22/2008 |
| 7321379 | Galvonometric scanning and imaging with multiple beams reflected from an oscillator Multiple light beams are reflected by a resonant oscillator through an optical system onto light sensitive drums of a printing system. Information is encoded onto the beams, and an image is printed based on the encoded information. Preferably four beams and four dru... | 01/22/2008 |
| 7319475 | Method and apparatus for image forming capable of preventing image quality deterioration induced by heat from an optical deflector An image forming apparatus includes an image bearing member having a photosensitive surface and an optical writing apparatus generating a laser beam modulated according to image data. The optical writing apparatus includes a housing, an optical deflector, an f-theta... | 01/15/2008 |
| 7315720 | Image forming apparatus An image forming apparatus that senses image position differences without a dedicated light source or driver circuit, the apparatus including a transfer belt and an image forming unit for deflecting a light emitted from a light source, forming a latent image on a su... | 01/01/2008 |
| 7315409 | Optical scanning device and image forming apparatus using the same An optical scanning device deflects, by a common optical deflecting part, a plurality of groups of light beams emitted from a plurality of light sources and directs, by a scanning and imaging optical system, the groups of deflected light beams to respective scan sur... | 01/01/2008 |
| 7307650 | Arrangement for, and a method of, reducing image distortion due to electrical interference Electrical interference between resonant, drive and line frequencies in a drive is reduced by selecting the resonant frequency to be non-harmonically related to the drive and line frequencies. The drive is of beneficial use in a lightweight, compact image projection... | 12/11/2007 |
| 7304778 | Optical scanning system and image forming apparatus using the same An optical scanning system and an image forming apparatus with such optical scanning system, include a light source, an optical deflector having a deflecting surface, for scanningly deflecting a light beam emitted from the light source means, and an imaging optical ... | 12/04/2007 |
| 7304777 | Optical scanning apparatus and image forming apparatus using the same An overfilled optical scanning apparatus has an incidence optical system for converging a light beam onto a deflection surface of a light deflector which has a plurality of deflection surfaces, and an imaging optical system for imaging the deflected light beam onto ... | 12/04/2007 |
| 7298390 | Optical scanning device for scanning a laser beam on an image bearing member A laser beam source that emits a laser beam includes a reflecting unit that has a plurality of reflecting members and reflects the laser beam emitted from the laser beam source, a deflecting and scanning unit that deflects and scans with the laser beam reflected by ... | 11/20/2007 |
| 7294446 | Digital analog recording using near field optical imaging A data storage device and method of making the storage device wherein a digital and analog image may be stored thereon. The storage device includes a photosensitive layer capable of retaining an optical image thereon, which may be written in a digital format that ca... | 11/13/2007 |
| 7286155 | Optical engine using one-dimensional MEMS device In one embodiment disclosed, an optical engine includes a light modulator coupled to illumination optics and imaging optics. The light modulator may be located at about an object plane. The imaging optics may include a scanner and a spatial filter located at about a... | 10/23/2007 |
| 7279656 | Method of and apparatus for changing the permeability of tubular envelopes of rod-shaped articles of the tobacco processing industry The invention relates to a method of and to an apparatus for perforating the tubular wrappers of plain or filter cigarettes and other rod-shaped articles of the tobacco processing industry. The articles are advanced sideways at the periphery of a rotary drum-shaped ... | 10/09/2007 |
| 7274499 | Scanning optical apparatus and image forming apparatus using the same An object of the present invention is to prevent deterioration of image quality caused by ghost light generated from components of a scanning optical apparatus. In the present invention, an image writing light flux is related with a position at which ghost light app... | 09/25/2007 |
| 7265886 | Optical scanner and image forming apparatus The over-field type optical scanner includes a first imaging optical system disposed between a light source and a rotating polygon mirror for forming, on one surface of the rotating polygon mirror, a linear image with a width larger than a width along a main scannin... | 09/04/2007 |
| 7256917 | Two-dimensional scanning apparatus and scanning type image displaying apparatus using the same A two-dimensional scanning apparatus has light source means, deflecting means for deflecting a beam emitted from the light source means in a two-dimensional direction, and scanning optical means for directing the beam deflected by the deflecting means onto a surface... | 08/14/2007 |
| 7253935 | Optical scanner, image forming apparatus, and optical scanner attitude correcting method An optical scanner includes a light source that emits a light beam, a deflection unit that deflects the light beam, an optical unit that introduces the light beam to a target surface, a housing unit that stores these components, and a member that contacts the light ... | 08/07/2007 |
| 7251067 | Optical scanning apparatus The present invention has as its object to provide a compact optical scanning apparatus of high performance. So, in the present invention, an optical scanning apparatus comprised of two or more reflecting mirrors is of a construction in which the optical characteris... | 07/31/2007 |
| 7248276 | Image-forming device A motor drive device for driving of a plurality of motors in a proper manner, having a first motor, a second motor, and a current controller. The first motor is able to drive at up to a first maximum permissible current of A1. The second motor is able to driv... | 07/24/2007 |
| 7248391 | Optical scanning system and image forming apparatus using the same Disclosed is an optical scanning system and an image forming apparatus having the same, wherein, in one preferred form of the invention, the optical scanning system includes a light source device, a deflecting device for scanningly deflecting a light beam from the l... | 07/24/2007 |
| 7245412 | On-the-fly laser beam path error correction for specimen target location processing A laser-based workpiece processing system includes sensors connected to a sensor controller that converts sensor signals into focused spot motion commands for actuating a beam steering device, such as a two-axis steering mirror. The sensors may include a beam positi... | 07/17/2007 |
| 7238543 | Methods for marking a bare semiconductor die including applying a tape having energy-markable properties A method used for marking a semiconductor wafer or device. The method and apparatus have particular application to wafers or devices which have been subjected to a thinning process, including backgrinding in particular. The present method comprises reducing the cros... | 07/03/2007 |
| 7236281 | Optical scanner and image forming apparatus An optical scanner includes a single deflector to optically scan a plurality of target surfaces to be scanned. The deflector has a common rotary axis for deflecting reflective surfaces and is shared by all the beams from a plurality of light sources. The optical sca... | 06/26/2007 |
