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| Number | Title | Issue Date |
| 7369784 | Image forming apparatus and main body of the same The present invention provides an image forming apparatus main body for forming an image on a recording medium using consumable items removably attached thereto by at least two operation modes. The image forming apparatus main body comprises a communicating unit tha... | 05/06/2008 |
| 7365764 | Scanning optical apparatus and color image forming apparatus using the same A scanning optical apparatus includes a light source capable of being modulated, a deflecting element for deflecting and scanning a beam emitted from the light source, a scanning optical element for imaging the deflected beam into a spot shape on a scanned surface, ... | 04/29/2008 |
| 7280127 | Scanning apparatus for laser printer The present invention relates to a scanning apparatus for a laser printer. More particularly, the present invention relates to a scanning apparatus, which is formed to allow a light modulator to be non-perpendicular to the shaft of a photosensitive drum, which is a ... | 10/09/2007 |
| 7206012 | Memory device on optical scanner and apparatus and method for storing characterizing information on the memory device An optical scanner is provided having a memory device thereon. The memory device may store operational characteristics of the optical scanner or data that characterizes laser beam scan path and/or laser power requirements by each laser of the optical scanner. The me... | 04/17/2007 |
| 7139494 | Image forming apparatus, part detachable device and image forming apparatus main body that switches operation mode based part used An image forming apparatus includes an image forming section to which a replaceable part is detachably attached and a switching section for switching an operation mode of the image forming section between an approved part mode corresponding to a case wherein an appr... | 11/21/2006 |
| 7039257 | Scanning optical apparatus and image forming apparatus using the same At least one beam emitted from a light source is deflected by a deflector, and the beam deflected by the deflector is imaged on a surface to be scanned by imaging optical system having a diffracting surface on at least one surface thereof. Of diffracted lights diffr... | 05/02/2006 |
| 7006773 | Image forming apparatus, image forming method, and fixing device thereof The present invention provides an image forming apparatus having a fixing unit in which electric power is supplied from the power supply unit to a heater thereof, and the formed image is fixed by heating the recording medium on which the image has been formed, a det... | 02/28/2006 |
| 6958764 | Scanning optical apparatus and image forming apparatus using the same A scanning optical apparatus includes incident optical system for causing at least one light beam emitted from a light source to be incident on a deflection device and image formation optical system including at least one refractive optical element and at least one ... | 10/25/2005 |
| 6927883 | Light-scanning optical apparatus and image forming apparatus A high definition light-scanning optical apparatus uses an oblique incidence optical system and has a simple configuration that does not exert any adverse effect on the quality of the image formed by it as the elements of the apparatus are appropriately arranged. Th... | 08/09/2005 |
| 6924830 | Image forming apparatus In a scanning optical system provided with a plurality of scanning optical devices, each scanning optical device including a light source to emit a light beam, a collimator lens into which the light beam emitted from the light source enters, a deflector to deflect t... | 08/02/2005 |
| 6862108 | Optical printer with micromirror device An optical printer has a DMD as a spatial light modulator. An optical image corresponding to a picture frame is projected from the DMD onto a photographic paper in a variable size to print the picture frame in a designated print size. When a maximum print size is de... | 03/01/2005 |
| 6661441 | Combined lens, holder, and aperture A refractive body includes a lens, holder, and aperture particularly suited for use in raster scanners. The refractive body advantageously can be made from resinous materials, such as plastics, but can be formed from any refractive material as may be appr... | 12/09/2003 |
| 6593951 | Optical writing system directed to miniaturization thereof, and image forming apparatus employing it Optical systems are disposed in the two symmetrical direction with respect to an optical deflector, and direct the optical beams deflected by the optical deflector into respective surfaces to be scanned, and forming images thereon. A housing encloses a pl... | 07/15/2003 |
| 6563104 | Image forming apparatus In an image forming apparatus, an object surface (14) is disposed facing one end face of a rod lens array (10), while an image surface (16) is disposed facing the other end face thereof. A lens working distance of the rod lens array on the object side is ... | 05/13/2003 |
| 6525752 | Exposure unit with staggered LED arrays The image reproduction system includes a light exposure unit and a photosensitive member having an outer surface. The exposure unit includes a staggered plurality of linear LED arrays and a staggered plurality of discrete objectives associated therewith w... | 02/25/2003 |
| 6466245 | Rod lens array and optical printer head and optical printer using the same A rod lens array for optical printer head includes a plurality of rod lenses arranged cyclically in a predetermined direction. The rod lenses are fixed by filling a opaque substance into the gaps separating the respective rod lenses and sandwiching the ro... | 10/15/2002 |
| 6411325 | Optical unit, and electrophotographic recording device having same It is an exemplified object of the present invention to provide an optical unit that can easily and inexpensively align an optical axis of the lens and a beam from a light source during continuous operation, and to provide an electrophotographic recording... | 06/25/2002 |
| 6340982 | Image forming apparatus and exposure device thereof An exposure device in which an image forming lens is disposed in such a posture that the center line of an image forming is out of axial alignment with the center of beam intensity distribution of the light emitting diode output (the center of beam intens... | 01/22/2002 |
| 6232991 | ROS bow compensation Scan line bow correction for raster output scanners, and systems that use raster output scanners. Scan line bow correction is performed in raster output scanners having a post-polygon optical system that includes an f-θ lens system that has at least two ... | 05/15/2001 |
| 6061079 | Laser beam printer with a common scanning optical system A semiconductor laser array emits a plurality of laser beams. A polygon mirror deflects the plurality of laser beams together. A prism type reflector separates the deflected laser beams to different directions that are generally along an arrangement direc... | 05/09/2000 |
| 6061074 | Ion generator for ionographic print heads An ion generator for the generation of a plasma is assembled from module subassemblies. The first subassembly includes a dielectric plate 1, on the first surface 1a of which are located a large number of first electrodes 3, and the second surface 1b of wh... | 05/09/2000 |
| 5936755 | Multi-beam scanning apparatus A multi-beam scanning optical apparatus of the present invention which is a multi-beam scanning apparatus which forms an image on a scanned surface via a plurality of laser beams, the laser scanning device has, a light source emitting a plurality of laser... | 08/10/1999 |
| 5838360 | Method of and apparatus for making a print containing parallax information A 3D printer comprises a scanning laser system. A donor sheet is located in the focal plane of the optical system and carries a thermally transferable colourant such as a dye or pigment. A lenticular screen has a colourant receiving layer which receives c... | 11/17/1998 |
| 5610647 | Image forming apparatus including a plural laser beam scanning apparatus An image forming apparatus including an image bearing member, a charging unit, a laser beam scanning apparatus and a developing unit. The laser beam scanning apparatus includes a semiconductor laser array for emitting laser beams, a collimator lens for co... | 03/11/1997 |
| 5552863 | Xerographic printer wherein exposure and development are performed on opposite sides of the photoreceptor A xerographic print engine includes a rotatable photoreceptor belt. The photoreceptor is exposed by delivering energy to the inward-facing side of the belt, and the electrostatic latent image is developed by applying toner to the outward-facing side of th... | 09/03/1996 |
| 5376994 | Compact BI-color electrophotographic image forming apparatus An image forming apparatus having deflection scanning type and line type exposing devices and first and second developing devices arranged around a photoconductive element, so that parts around the photoconductive element are arranged with ease to promote... | 12/27/1994 |
| 5365259 | Scanning optical device A scanning optical device focuses a laser beam emitted by a laser oscillator by a first lens, scans it by a deflector to direct it onto a medium to be scanned, by a second lens, deflects a portion of the light transmitted through the second lens by a stat... | 11/15/1994 |
| 5341202 | Electrophotographic recording apparatus with a scanner for automatically selecting media An electrophotographic recording apparatus containing a scanner is provided with a common medium receptacle unit adapted to insert media such as an original document and a print sheet, and/or a cassette for accommodating media, and a separator mechanism a... | 08/23/1994 |
| 5300962 | Compound optics for a raster output scanner in an electrophotographic printer A raster output scanner system for multi-color printing provides a plurality of independently-controllable, substantially parallel writing beams. A rotating polygon causes the writing beams to scan simultaneously. The parallel beams are then reflected by ... | 04/05/1994 |
| 5260718 | Liquid crystal shutter xerographic printer with offset configuration lamp aperture and copier/printer with optically aligned lamps, image bars, and lenses A xerographic printer especially suitable for printing copies of oversized original documents is enabled by staggering a plurality of image bars in optical alignment with a linear projection means such as gradient index lens arrays which are tilted at a p... | 11/09/1993 |
| 5257048 | Optical element and photoreceptor registration system for a raster output scanner in an electrophotographic printer A system, including a specially-designed optical element, facilitates extremely precise and accurate registration of a light beam on a photoreceptor. The optical element includes a redirecting cylinder lens, having a longitudinal axis oriented obliquely r... | 10/26/1993 |
| 5257047 | Control apparatus and method for image-forming system In an image-forming system where a photosensitive belt is exposed to and scanned with a laser beam to form an image on the surface of the photosensitive belt, a standard pattern having laser beam-transmitting portions and non-transmitting portions arrange... | 10/26/1993 |
| 5247316 | Laser beam printer having three-point support system A laser beam printer having a deflector for deflecting a laser beam modulated in accordance with information to be recorded and a photosensitive member which is scanned by the deflected laser beam. A frame is provided to position both the deflector and th... | 09/21/1993 |
| 5218413 | Optical device for image forming apparatus An optical device provided in an image forming apparatus and having a laser for emitting a beam, a polygonal mirror for deflecting the beam in a scanning direction, and optical members including an elongated cylindrical lens for directing the deflected be... | 06/08/1993 |
| 5162821 | Color image forming apparatus A color image forming apparatus including a color image reader for optically scanning a document to produce blue, green, and red color separated information, a processor for processing the color separating information supplied by the reader and generating... | 11/10/1992 |
| 5160965 | Image forming apparatus with small LED array An image forming apparatus includes an image carrier, an LED (light emitting diode) array having a plurality of light-emitting units arranged in correspondence with the longer direction of the image carrier, the width of the LED array being smaller than a... | 11/03/1992 |
| 5138347 | Thin film electroluminescent edge emitter structure with optical lens and multi-color light emission systems A thin film electroluminescent edge emitter structure includes a common electrode layer and control electrodes disposed above the common electrode layer. At least one dielectric layer is disposed between the common electrode layer and control electrodes, ... | 08/11/1992 |
| 5126995 | Light scanning device A light scanning device comprising a source of a parallel light beam. The parallel light beam is passed through a first liquid crystal shutter and a first lens to converge at a focal point thereof. A rectangular light reflecting box with inside reflecting... | 06/30/1992 |
| 5122817 | Electrophotographic recorder using a modulated laser beam to scan the original An image forming apparatus comprising a laser beam radiating unit utilized as a light source, and an optical system that the surface of an original reflects a laser beam radiated from the radiating unit to project an image reflected from the original onto... | 06/16/1992 |
| 5105299 | Unfolded optics for multiple row deformable mirror device An optical system is described for combining separate deformable mirror device images into a single image. The resulting image is a single continuous image comprising left and right halves corresponding to the original individual images. The system is par... | 04/14/1992 |
