| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | OPTICAL PRINTERS | US12302820 | 2007-05-30 | US20100014064A1 | 2010-01-21 | Trevor Elworthy; Duncan Bilson; Nicholas Homan |
| One aspect of this invention relates to an illumination device for an optical printer, the illumination device comprising: a first array of light sources (20) comprising a plurality of light source elements (14) that are each operable to emit light within a red band of the visible electromagnetic spectrum; a second array of light sources (21) comprising a plurality of light source elements (14) that are each operable to emit light within a blue band of the visible electromagnetic spectrum; and a third array of light sources (22) comprising a plurality of light source elements (14) that are each operable to emit light within a green band of the visible electromagnetic spectrum; wherein said first, second and third arrays of light sources (20, 21, 22) are generally linearly arranged along respective substantially parallel notional lines (34) on a substrate (15); and said plurality of light source elements (14) of each said array (20, 21, 22) are arranged such that respective adjacent light source elements of said plurality are offset from one another with respect to the associated notional line (34). Other aspects relate to printing heads, printing head assemblies, optical printers, and methods and apparatus for calibrating an optical printer. | ||||||
| 162 | Image forming apparatus and method | US10950592 | 2004-09-28 | US07273264B2 | 2007-09-25 | Kanji Nagashima |
| The image forming apparatus forms an image on a recording medium by using coloring materials of a plurality of colors including at least cyan, magenta and yellow, and the apparatus comprises: a cyan recording head which has a plurality of cyan recording elements for forming cyan recording pixels on the recording medium; a magenta recording head which has a plurality of magenta recording elements for forming magenta recording pixels on the recording medium; a yellow recording head which has a plurality of yellow recording elements for forming yellow recording pixels on the recording medium, a density of the plurality of yellow recording elements arranged in the yellow recording head being lower than each of a density of the plurality of cyan recording elements arranged in the cyan recording head and a density of the plurality of magenta recording elements arranged in the magenta recording head; and a recording control device which controls a recording operation in such a manner that a recording density of the yellow recording pixels formed on the recording medium with the yellow recording head is lower than each of a recording density of the cyan recording pixels formed on the recording medium with the cyan recording head and a recording density of the magenta recording pixels formed on the recording medium with the magenta recording head. | ||||||
| 163 | Image processing method, program thereof and image processing apparatus | US10094715 | 2002-03-12 | US07194476B2 | 2007-03-20 | Masahiro Nagatani |
| The execution of a calibration process according to a characteristic of an image formation unit is properly controlled. To do so, it is provided an image processing method of executing the calibration process of newly creating a database file according to the characteristic of the image formation unit on the basis of an original database file according to the kind of the image formation unit, and of storing the created database file in correspondence with the characteristic of the image formation unit, wherein version information of the original database file is compared with version information of the created database file, and the execution of the calibration process is controlled based on the compared result. | ||||||
| 164 | Closed-loop color correction using factory-measured color cutoffs anchored to field-measured white point | US09945492 | 2001-08-31 | US07134737B2 | 2006-11-14 | Ferran Vilanova; Miquel Boleda; James L. McCullough |
| Absolute perceptual values are stored in the design lab, for maximum-density-tone cutoffs—preferably a maximum yellow-blue chrominance b* for yellow and minimum luminosity L* for other colorants. Automatic field operations in each printer then force the printer to subsequently print nominal full-saturation colorants so as to match the stored values. In addition to the stored cut-offs, black-and-white reference values measured in the printer are also used in linearizing printer response, for specific combinations of printing medium and printmode. | ||||||
| 165 | Printer and printing method | US11052822 | 2005-02-09 | US20050174383A1 | 2005-08-11 | Hajime Inoue |
| A direct color thermal printer includes a heating element array for yellow, a heating element array for magenta, and a heating element array for cyan to perform the thermal printing on each of recording areas in color thermosensitive recording paper. When one of the heating element arrays, the heating element array for yellow, for instance, faces a blank area of the color thermosensitive recording paper, the heating element array for yellow starts a blank area recording to thermally print the blank area. Thereby, all of the heating element arrays constantly remain in a state of thermal printing, so that variations in recording density, which is caused by the load fluctuations in the power supply, does not occur. | ||||||
| 166 | Closed-loop color correction using factory-measured color cutoffs anchored to field-measured white point | US09945492 | 2001-08-31 | US20050073545A1 | 2005-04-07 | Ferran Vilanova; Miquel Boleda; James McCullough |
| Absolute perceptual values are stored in the design lab, for maximum-density-tone cutoffs—preferably a maximum yellow-blue chrominance b* for yellow and minimum luminosity L* for other colorants. Automatic field operations in each printer then force the printer to subsequently print nominal full-saturation colorants so as to match the stored values. In addition to the stored cut-offs, black-and-white reference values measured in the printer are also used in linearizing printer response, for specific combinations of printing medium and printmode. | ||||||
| 167 | Optical printer device that forms color images | US09972871 | 2001-10-10 | US06720986B2 | 2004-04-13 | Sadao Masubuchi; Hideyuki Kawashima; Masafumi Yokoyama; Masaaki Matsunaga; Akira Shiota |
| An optical printer device which includes an exposure device which makes relative movements, in a predetermined direction, with respect to a photosensitive body. The optical printer also has a plurality of first, second and third light-emitting elements which emit lights of a first, second and third colors. These light-emitting elements are mounted on a first, second and third mounting substrates, independent of one another, which correspond to the first, second and third colors. | ||||||
| 168 | Image processing method, program thereof and image processing apparatus | US10094715 | 2002-03-12 | US20020147723A1 | 2002-10-10 | Masahiro Nagatani |
| The execution of a calibration process according to a characteristic of an image formation unit is properly controlled. To do so, it is provided an image processing method of executing the calibration process of newly creating a database file according to the characteristic of the image formation unit on the basis of an original database file according to the kind of the image formation unit, and of storing the created database file in correspondence with the characteristic of the image formation unit, wherein version information of the original database file is compared with version information of the created database file, and the execution of the calibration process is controlled based on the compared result. | ||||||
| 169 | Liquid crystal pixel interpolating mechanism in a liquid crystal photo printer | US09534236 | 2000-03-23 | US06429911B1 | 2002-08-06 | Mamoru Ogasawara |
| A liquid crystal pixel interpolating mechanism is provided in a liquid crystal photo printer, wherein an image displayed on a liquid crystal panel, which is constituted of a plurality of pixels arrayed in two-dimensional directions and at predetermined pitch dimensions, is projected through a projecting lens onto a photosensitive material and printed on the photosensitive material. The mechanism comprises a liquid crystal panel support member, which is supported with resilient members, and pushing device for pushing the liquid crystal panel support member. With the mechanism, a pixel shifting operation is capable of being performed with a simple constitution and accurately. | ||||||
| 170 | Stable substrate structure for a wide swath nozzle array in a high resolution inkjet printer | US09395379 | 1999-09-14 | US06332677B1 | 2001-12-25 | Steven W. Steinfield; Brian J. Keefe; Winthrop D. Childers; Donald G. Harris; Majid Azmoon |
| An inkjet printhead includes a compact substrate of increased stability and structural integrity to provide a high resolution 600 dot-per-inch nozzle array having a one-half inch swath. A plurality of ink vaporization chambers are respectively aligned with the nozzles in two longitudinal columns, one column extending longitudinally along one edge of the substrate and a second column extending longitudinally along an opposite edge of the substrate, with ink feed channels communicating through an ink passage from an underside of the substrate around both edges of the substrate to the vaporization chambers. The ink feed channels have thereby been eliminated from the central portion of the substrate, and replaced by the ink feed channels at the edges of the substrate. | ||||||
| 171 | Image recording method | US09291867 | 1999-04-14 | US06325486B1 | 2001-12-04 | Hiromitsu Takahashi |
| An image recording method performs recording using an upper band as a recording area formed by one scan of a recording head, and a lower band as a recording area formed by the next scan of the recording head so as to overlap in a plurality of dots, and performs assignment of recording data in the overlapping area to the upper and lower bands. The assignment includes successively identifying each dot of the recording head in the scanning direction thereof; providing successive flags to the dots when the dots have the recording data; and assigning, to the upper band and the lower band, the recording data in the successive dots provided with the successive flags only when no recording data is detected. In addition, when the assignment is performed, the recording data in the successive dots provided with the successive flags are divided into two groups in the scanning direction of the recording head. Moreover, when the assignment is performed, from among the recording data in the successive dots provided with the successive flags, the recording data in at least one dot is extracted and added to another dot in the scanning direction which has no recording data. | ||||||
| 172 | Optical recording head | US09185650 | 1998-11-05 | US06249502B1 | 2001-06-19 | Nobuo Mushiake |
| An optical recording head which decomposes light emitted from a light source into three primary colors with rotation of a color wheel, emits the light linearly through an optical fiber array, illuminates an optical valve array through an integrator and an illuminating optical element array and exposes a photographic paper to light modulated by the optical valve array through an imaging optical element array. The integrator is formed by arranging two mirrors in parallel to each other, and a rod lens is provided between the mirrors. The rod lens has a refracting power to decrease the divergent angle of the light emergent from the optical fiber array. | ||||||
| 173 | Image formation device for forming a color image composed of plural colors | US09390472 | 1999-09-03 | US06239828B1 | 2001-05-29 | Masao Ito; Shoji Yamaguchi |
| This invention provides an image formation device at low cost, which can be miniaturized, of which the quality of an image is uniform, which can form a high resolution of color image at high speed wherein even if the relative mounting position of a light source and an optical element is dislocated, the deterioration of color registration can be reduced. Laser beams for each color sequentially emitted from each laser element of a laser array pass an imaging optical system and are split into the side of photoconductor drums and into the side of a deflecting optical system by a splitting optical system. Laser beams incident on the deflecting optical system are reflected by optical mirrors so that principal rays of the laser beams respectively converge on photodetectors and are incident on approximately the same position of each photodetector. The photodetectors individually detect the luminous energy of laser beams from each laser element. | ||||||
| 174 | Image forming apparatus with image distortion correction system | US09328590 | 1999-06-10 | US06215512B1 | 2001-04-10 | Shoji Imaizumi; Yoshihiko Hirota; Hiroshi Sugiura |
| Image distortion is corrected in a color printer wherein print units for a plurality of colors are aligned to form a color image by superposing images formed by the print units. Images of the colors of a predetermined pattern formed by the print units are detected by a sensor. Based on the detection result, image distortion quantities and a setting error of the position of the sensor are detected. Then, the detected color shift on image forming is corrected according to the image distortion quantities and the setting error. | ||||||
| 175 | Multi-gradation recording method | US09392157 | 1999-09-08 | US06211893B1 | 2001-04-03 | Satoshi Mori; Naoki Yoshida |
| A multi-gradation recording method wherein the recording energy in high density region can be reduced, and the rough appearance in low density region or high density region and notchy appearance in profile or line of the image can be reduced while maintaining the level of reproduction of intermediate tones obtained by the conventional recording method using the zigzag pattern or the stripe pattern is provided which comprises: using a printer of the type wherein each one pixel is formed by using each one recording element and the optical density of the pixel formed is represented by the magnitude of the area of the pixel, dividing input data into two or more groups with respect to the data corresponding to pixels to be arranged in principal scanning direction, correcting the data of each group on the basis of the corresponding &ggr; correction data, the &ggr; correction data for the respective groups being different from each other, and performing recording on the basis of the corrected data wherein the pixels of all the groups are recorded at the same time in the same scanning operation in principal scanning direction. | ||||||
| 176 | Color Xerographic printing system with multicolor printbar | US782158 | 1997-01-13 | US6133933A | 2000-10-17 | Thomas L. Paoli |
| An electrostatographic development system includes a multicolor array; a photoreceptor having a plurality of layers, each layer being sensitive or accessible only to one of multiple wavelengths; and electrostatographic development apparatus for exposing areas of the photoreceptor to emitted light from the multicolor printbar, and, after exposure, depositing at least a plurality of toners on the photoreceptor in response to exposure of areas of layers of the photoreceptor to the emitted light. The multicolor array for such an electrostatographic development system includes a plurality of subarrays of light emitting areas arranged across a length of the array, wherein each of the plurality of subarrays includes a plurality of light emitting areas and each of the plurality of subarrays emit light of a different wavelength from the remaining subarrays. | ||||||
| 177 | Intensity control unit for image forming apparatuses | US378732 | 1995-01-26 | US6081289A | 2000-06-27 | Yoshimi Ogasawara; Eihiro Sakaki |
| A method of controlling the intensity of scanning light in a color image forming apparatus in which a photosensitive member is scanned with light modulated according to an image signal, comprises: a first step of turning on a light source of scanning light in order to illuminate at least the whole of one main scanning line before image formation based on the first color component, and controlling the light source according to the intensity of scanning light; a second step of controlling the light source according to the intensity of scanning light during scanning of a non-image scanning area before the image formation based on the first color component and after the intensity control of the first step; and a third step of controlling the light source according to the intensity of scanning light during scanning of a non-image scanning area between two cycles of image formation based on a color component. | ||||||
| 178 | Light-emitting device and image forming apparatus using the same | US651702 | 1996-05-21 | US6008833A | 1999-12-28 | Toshihiko Ohtsubo; Hiroshi Tanioka; Mitsuru Amimoto; Shigeo Hata |
| A light-emitting device includes a number of light-emitting element groups each including a plurality of light-emitting elements, a first drive device for driving the plurality of light-emitting elements in succession, and a number of resistance sections, each separately connected to each of the light-emitting element groups. The resistance section is connected in common to the plurality of light-emitting elements. The light-emitting device further includes a second drive device for driving the light-emitting element groups. | ||||||
| 179 | Stable substrate structure for a wide swath nozzle array in a high resolution inkjet printer | US893775 | 1997-07-11 | US5984464A | 1999-11-16 | Steven W. Steinfield; Brian J. Keefe; Winthrop D. Childers; Donald G. Harris; Majid Azmoon |
| An inkjet printhead includes a compact substrate of increased stability and structural integrity to provide a high resolution 600 dot-per-inch nozzle array having a one-half inch swath. A plurality of ink vaporization chambers are respectively aligned with the nozzles in two longitudinal columns, one column extending longitudinally along one edge of the substrate and a second column extending longitudinally along an opposite edge of the substrate, with ink feed channels communicating through an ink passage from an underside of the substrate around both edges of the substrate to the vaporization chambers. The ink feed channels have thereby been eliminated from the central portion of the substrate, and replaced by the ink feed channels at the edges of the substrate. | ||||||
| 180 | Alignment of differently sized printheads in a printer | US93962 | 1998-06-08 | US5971524A | 1999-10-26 | Nicholas Nicoloff, Jr.; Mark S. Hickman; John A. Christianson; Douglas L. Franz; Donald G. Harris; Majid Azmoon |
| An inkjet printer is disclosed with mixed print resolution capabilities. The printed dots have a high resolution monochrome component such as black and lower resolution components such as cyan, magenta and yellow. For increased throughput, a higher resolution black printhead has a wider swath. Various alignments between the printheads and printed dots are disclosed. In one embodiment, the top edges of the smaller color printheads are aligned in a scanning carriage at or near the top of the wider black printhead. In other embodiments, the bottom edges of the smaller color printheads are aligned at or near the bottom of the wider black printhead. In another embodiment, the small color printheads are centered with the wider black printhead. | ||||||
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