Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7426065 | System and method for alternating between transmitting and reducing incident light on pixel portion of an imager An imager apparatus comprises a pixel and a first filter positioned in an incident light path for a portion of the pixel, the filter being operable to alternate between transmitting and reducing incident light on the pixel portion. ... | 09/16/2008 |
| 7227676 | Optical scanning apparatus To provide an image forming apparatus including a plurality of laser scanning units having deflecting and scanning means which deflect and scan light fluxes emitted from a plurality of light sources, respectively; a plurality of image bearing members on which electr... | 06/05/2007 |
| 7219842 | Scanning unit suitable for applications with a high-speed scanning requirement A scanning unit includes a lamp-mounting body having a top surface formed with an elongate opening that is disposed between a pair of parallel first and second grooves. First and second reflective layers are attached respectively over curved groove-defining surfaces... | 05/22/2007 |
| 7003241 | Image recording device and an image recording system A multi-beam image recording device is capable of recording high-quality high-resolution images without positional errors by exposing test patterns for measuring positional errors of beam spots of each laser beam in main and subsidiary scanning directions, calculati... | 02/21/2006 |
| 6163668 | Multi-functional copier and printing apparatus which provides various options from which to read in, output and display images A composite apparatus includes a business-machine main-body apparatus having at least a copying function and a printer function, and a display device, also operating as an original-pressing plate, having a flat display surface for displaying an operationa... | 12/19/2000 |
| 6147739 | Drive IC, liquid crystal panel, liquid crystal device, and electronic apparatus A liquid crystal device is formed by mounting a drive IC on a liquid crystal panel. The liquid crystal panel comprises a plurality of signal electrodes formed on a first transparent substrate, a plurality of scan electrodes formed on a second transparent ... | 11/14/2000 |
| 6141134 | Multiple-resolution optical device A multiple-resolution optical device used to scan objects of variable sizes in various resolutions and forming corresponding images onto an image sensor is disclosed. The multiple-resolution optical device according to the present invention comprises a li... | 10/31/2000 |
| 5716744 | Dual beam color electrophotographic apparatus An electrophotographic printer produces a multi-color image on a moving photoconductor (OPC) and includes a laser/scanner arrangement for producing first and second beams to expose the OPC at spaced-apart exposure stations. The OPC is charged to a referen... | 02/10/1998 |
| 5703700 | Method of enhancing a print of a transparency A transparency to be printed is scanned to generate density values which are used to determine the degree of exposure of the transparency. The transparency is further scanned to generate signals representing an image of the transparency. The scanner which... | 12/30/1997 |
| 5640230 | Electrostatic latent image developing methods and apparatuses for use with the methods An electrostatic latent image developing method and an apparatus used in the latent image developing method are disclosed. In a first image developing method, a bias supply voltage provided to a developing dish is gradually increased during a developing p... | 06/17/1997 |
| 5606450 | Movable reflective panel for an optical scanner A movable reflective panel is devised for an optical scanner to facilitate the scanning of a document from underside so that there is no need to place an opaque panel above the document. The optical scanner comprises a base housing having a transparent to... | 02/25/1997 |
| 5598067 | Electroluminescent device as a source for a scanner An electroluminescent device used as an illuminating source in a scanner. The device includes at least one solid-state electroluminescent element, which has a transparent electrode with a top surface, a radiation generating stack under the transparent ele... | 01/28/1997 |
| 5541634 | Color printer with shiftable laser unit A color printer includes a single laser scanning unit which is controlled to emit a scanning laser in accordance with color image data on each of a plurality of separated colors to be printed. A plurality of photosensitive drums, whose number corresponds ... | 07/30/1996 |
| 5523876 | Scanner drive system having minimum rotational error carriage suspension A scanning apparatus providing separate fixed object focal planes for transmissive and reflective original documents to be scanned, wherein a scan carriage containing illumination, sensor, and optical elements is moved together to scan an original documen... | 06/04/1996 |
| 5506663 | Scanner mounting apparatus for an electrostatographic printing machine An apparatus for mounting a scanner along a paper path in an electrostatographic printing machine for permitting scanning of an information bearing code from a copy sheet traveling in a process direction of travel through the paper path. The scanner mount... | 04/09/1996 |
| 5504564 | Vibratory assisted direct marking method and apparatus The present invention is a method and apparatus for producing an image on the image receiving member. The method and apparatus employ a photoconductive member that is charged by the deposition of charged marking particles on an outer surface thereof. Subs... | 04/02/1996 |
| 5502550 | Image forming apparatus and method The present invention has an object to provide an image forming apparatus and method which enables an operator to easily adjust to the desired printing density. A paper feeding roller is driven in timing along with a registration roller. The irradiation o... | 03/26/1996 |
| 5500738 | Electrophotographic digital copier for providing bicolor copies by a single image transfer An electrophotographic digital copier for sequentially writing bicolor image data signals onto a photoconductive element and producing a bicolor hard copy by a single image transfer. The copier has a black developing device and a red developing device for... | 03/19/1996 |
| 5488601 | Photoelectric sensor, information recording system, and information recording method An information recording system including a photoelectric sensor being semiconductive and having a photoconductive layer stacked on an electrode, and an information recording medium having an information recording layer stacked on an electrode so that inf... | 01/30/1996 |
| 5479274 | Optical image scanning apparatus detecting sheet size and displacement An image scanning apparatus can obtain, using a simple optical detection system, original sheet information including size and displacement information of an original sheet before an image scanning operation starts. The image scanning apparatus comprises ... | 12/26/1995 |
| 5450168 | Moving image pickup device, medium for picking up moving images and process for picking up images continuously A charge carrier medium (41) is successively fed to a rotating (or reciprocating) photosensitive material (40) in opposite relation thereto. Making use of a beam or linear slit scanning exposure system or a planar exposure system enabling one frame to be ... | 09/12/1995 |
| 5379128 | Document transport apparatus and method A document transport apparatus provides continuous transport of documents input with a prescribed spacing between the documents, and can rapidly detect when documents close up or overlap. Detection of close up or overlap is made by measuring a length of e... | 01/03/1995 |
| 5298917 | Digital image forming apparatus In a digital image forming apparatus, in which images of a document placed on a document table are read through scanning by a scanner unit and electrostatic latent images are formed on a photosensitive body in accordance with data as for the images of the... | 03/29/1994 |
| 5289088 | DC linear motor A DC linear motor in which a position and a speed of a movable part relative to a stator can be easily detected by a displacement sensor and a sensor target. The displacement sensor is fixed on the movable part, and the sensor target is fixed on the stato... | 02/22/1994 |
| 5274402 | Image forming apparatus with fixer temperature control An image forming apparatus includes a feeder means and a recorder. The feeder feeds a sheet of recording paper to a predetermined position in response to a spare paper feed signal instructing the feeding as the sheet of recording paper to the predetermine... | 12/28/1993 |
| 5223906 | Four color toner single pass color printing system using two tri-level xerographic units A four color toner single pass color printing system consists generally of a raster output scanner (ROS) optical system and two tri-level xerographic units in tandem. Only two of the three subtractive primary colors of cyan, magenta and yellow are availab... | 06/29/1993 |
| 5221954 | Single pass full color printing system using a quad-level xerographic unit A four color toner single pass color printing system consists generally of a raster output scanner (ROS) optical system and a quad-level xerographic unit and a tri-level xerographic unit in tandem. The resulting color printing system would be able to prod... | 06/22/1993 |
| 5212568 | Method and apparatus for scanning a signature document An electronic reprographic apparatus, including a method for increasing the speed of manual or semi-automatic imaging of signature-type original documents, having the ability to selectively control the areas of the documents to be imaged. In particular, t... | 05/18/1993 |
| 5198865 | Color image forming apparatus A color copier which can be adopted to a printer operation for a peripheral imaging machine. The color copier forms plural color component toner layers on a photoreceptor layer by layer at each rotation of the photoreceptor. In the mode that the color cop... | 03/30/1993 |
| 5194894 | Copying apparatus A copying apparatus is provided with a first scanning unit for scanning a first document to expose a photosensitive material and a second scanning unit for scanning a second document to expose the photosensitive material, and, at a position where the opti... | 03/16/1993 |
| 5184178 | Image recording apparatus having an interchangeable cartridge An image recording apparatus capable of achieving multiple functions by selectively mounting plural cartridges. There are provided a first cartridge equipped with a recording mechanism for electrophotographically recording an image, and a second cartridge... | 02/02/1993 |
| 5177535 | Image scanning apparatus having alignment confirmation means An image scanning apparatus for scanning an image on an image bearing member. The apparatus includes a platen glass for supporting an original having an image on a supporting surface, a platen sheet, movably mounted between a first position and a second p... | 01/05/1993 |
| 5168305 | Optical system control mechanism A control mechanism for an optical system wherein a scanning operation by an optical system is controlled by the amount and the direction of an electric current supplied to an optical system drive motor; and wherein a current limiter value modifying means... | 12/01/1992 |
| 5126872 | Apparatus for optically scanning the surface of an object whose surface is capable of reflecting or scattering light An apparatus for optically scanning a reflective object includes a first reflector having a frustoconical reflecting surface with a central opening. A second reflector has a flat reflecting surface which faces the frustoconical surface and is inclined wit... | 06/30/1992 |
| 5097290 | Scanner for scanning an object from a plurality of positions A copying machine has an optical unit for forming a latent image on a photosensitive drum which corresponds to an original document supported for copying on a glass table of the copying machine. The copying machine is operable in two copying modes, in whi... | 03/17/1992 |
| 5043744 | Raster scanner including scanning beam tilt correction A raster output scanner in which a movable scanning element scans a high intensity beam across a movable imaging member to record images thereon. The velocity of the imaging member is controlled relative to the beam, and the tilt of the beam is adjusted r... | 08/27/1991 |
| 5021822 | Image scanning apparatus having exposure lamp lighting on at improved timing An image scanning apparatus according to the present invention is directed to a copying apparatus capable of continuously copying a plurality of sheets on a record medium, including a platen on which an original is placed, an illuminating device for illum... | 06/04/1991 |
| 5001515 | Image forming apparatus and image forming unit mountable on same The present invention provides an image forming unit which can be shifted within an image forming apparatus having an original support plate to perform an image forming operation, and which can also perform the image forming operation in combination with ... | 03/19/1991 |
| 4980253 | Additional information recording system An object of the invention is to provide a copy machine for recording an additional information onto a copy of document without reducing the document original image. The copy machine has a display for indicating the additional information in the proximity... | 12/25/1990 |
| 4975715 | Thermal printer having image editing function A position in which an image of a second document is inserted into an image of a first document is designated by operating an operation panel. A scanner unit reads the image of the first document and a printing unit prints the read image of the first docu... | 12/04/1990 |
