公开(公告)号：EP1849612A3

公开(公告)日：2008-06-25

申请号：EP07251775.8

申请日：2007-04-27

申请人： Ricoh Company, Ltd.

发明人： Tomita, Yasumasa

IPC分类号： B41J2/47

CPC分类号： B41J2/473 ,  G02B26/123

摘要： An optical scanning apparatus includes a plurality of light sources (51,52) for emitting light beams and a rotary deflector (57) for deflecting the light beams. A revolution number (Rm) of the rotary deflector is reduced to Rdef × (V/Vmax) if V/Vmax is greater than a predetermined value; and the revolution number (Rm) thereof is reduced to Rdef × (V/Vmax) × m and the number of the light beams is reduced to Ndef/m if V/Vmax is not greater than the predetermined value. V is a process linear velocity of the image forming apparatus; Vmax is a maximum process linear velocity thereof; Ndef is the number of the light beams at the maximum process linear velocity Vmax; and Rdef is the revolution number of the rotary deflector thereat; and m is a positive integer, and Vmax is greater than V (Vmax>V).

公开(公告)号：EP1834796A3

公开(公告)日：2008-01-23

申请号：EP07104146.1

申请日：2007-03-14

申请人： Ricoh Company, Ltd.

发明人： Ishimi, Tomomi ,  Kawahara, Shinya ,  Hotta, Yoshihiko

IPC分类号： B41J2/475 ,  B41J2/47 ,  B41M5/30 ,  G02B26/10

CPC分类号： B41J2/4753 ,  B41J2/471 ,  B41M5/305 ,  B41M5/363 ,  G02B26/105

摘要： To provide an image processing method including at least an image recording step and an image erasing step, wherein a laser beam is parallel light and wherein the laser scanning speed for the peripheral region surrounding the central region of the optical axis of the laser beam is lower than the laser scanning speed for the central region, the laser output for the peripheral region is greater than the output for the central region, or an overlapping area between a laser irradiation area that corresponds to a peripheral region surrounding a central region of the optical axis of the laser beam and a nearby laser irradiation area is larger than an overlapping area between a laser irradiation area that corresponds to the central region and the nearby laser irradiation area.

公开(公告)号：EP1844943A1

公开(公告)日：2007-10-17

申请号：EP07105750.9

申请日：2007-04-05

申请人： CANON KABUSHIKI KAISHA

发明人： Sobue, Fumitaka

IPC分类号： B41J2/47

CPC分类号： H04N1/0473 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0082 ,  H04N2201/04713 ,  H04N2201/04744 ,  H04N2201/04787 ,  H04N2201/04793

摘要： An image forming apparatus includes a photosensitive member, a light source for which intervals between spots formed on the photosensitive member by respective beams emitted from a plurality of light-emitting portions are narrower than a predetermined resolution, and a rotating polygonal mirror having a plurality of mirror plane each of which deflects beams emitted from the light source while rotating. In particular, the image forming apparatus includes a selection unit which selects a light-emitting portion corresponding to a mirror plane used to deflect a beam from the light source, and a driving unit which drives the light source to emit a beam from the selected light-emitting portion.

摘要翻译： 本发明公开了一种图像形成设备，包括：感光部件;光源，其通过从多个发光部分发射的各个光束在感光部件上形成的光点之间的间隔比预定分辨率窄;以及旋转多面镜， 镜面，每个镜面在旋转时偏转从光源发射的光束。 具体地，图像形成设备包括：选择单元，选择与用于偏转来自光源的光束的镜面相对应的发光部分;以及驱动单元，驱动光源以从所选择的光发射光束 发射部分。

公开(公告)号：EP1844940A2

公开(公告)日：2007-10-17

申请号：EP07007263.2

申请日：2007-04-06

申请人： CANON KABUSHIKI KAISHA

发明人： Sobue, Fumitaka

IPC分类号： B41J2/447 ,  B41J2/455 ,  B41J2/47

CPC分类号： H04N1/1135 ,  H04N1/053 ,  H04N2201/04762 ,  H04N2201/04791

摘要： An image forming apparatus includes light source having multiple light-emitting portions, rotating polygonal mirror which deflects a beam that is emitted from light source, and photosensitive member which is exposed by beams in an image period that is included in one scanning cycle of the beam. One scanning cycle of the beam includes an image period and a non-image period. This apparatus includes selection unit which selects one or more light-emitting portions to be used in image period from among multiple light-emitting portions, and driving unit which drives selected light-emitting portions to emit a beam in a non-image period that is immediately before image period. This apparatus further includes control unit which executes auto light power control for one or more light-emitting portions to be used in image period according to light power of beams detected by beam detection unit.

摘要翻译： 一种图像形成装置包括具有多个发光部，旋转多面镜偏转的光束并从光源发射其通过光束曝光在图像期间没有被包括在光束的一个扫描周期的光源，和感光元件的所有 ， 光束的一个扫描周期包括图像周期和非图像周期。 该装置包括用于驱动选出的发光部分以发射在非图像期间所做的是波束选择单元，选择一个或多个发光部在图像期间使用从多个发光部中，和驱动单元 之前的图像时期。 该装置包括另外的控制单元，其执行自动光功率控制在图像期间gemäß被用来通过光束检测单元检测到光束的光功率的一个或多个发光部。

公开(公告)号：EP1409259A4

公开(公告)日：2007-10-10

申请号：EP02706117

申请日：2002-01-30

申请人： LEXMARK INT INC

发明人： HUANG XUAN-CHAO ,  NYSTROM BRANT DENNIS ,  REEL RICHARD LEE

IPC分类号： B41M5/00 ,  C09D11/00 ,  H04N1/60 ,  B41J2/21 ,  B41J2/205 ,  B41J2/47 ,  G03F3/08

CPC分类号： B41J2/205 ,  B41M5/00 ,  C09D11/40 ,  H04N1/6022

摘要： Data in only three colors is printed in the three colors plus black. The coverage amount represented by the smallest intensity of the three colors is determined. When that amount is above a predetermined value at which observable grain becomes minimal, an exponent value is determined and a formula is followed. As an additional improvement, lightness is redefined on a model which favors less black at the lighter values and more balck at the darker values. Hue is to remain the same, ans is known from the original color data. The chroma is refined based on the original chroma, CMY, and CMYK full gamut boundaries. Since black, lightness, chroma and hue are known, the new three color values are found by known techniques.

摘要翻译： 只有三种颜色的数据以三种颜色加黑色印刷。 确定由三种颜色的最小强度表示的覆盖量。 当该量高于可观察晶粒变得最小的预定值时，确定指数值并遵循公式。 作为一个额外的改进，亮度被重新定义在一个模型上，在较弱的值下更少的黑色，而在较暗的值下更黑。 色相保持不变，并从原始颜色数据中得知。 色度根据原始色度，CMY和CMYK全色域边界进行细化。 由于黑色，亮度，色度和色相是已知的，所以通过已知的技术可以找到新的三色值。

公开(公告)号：EP1717048A2

公开(公告)日：2006-11-02

申请号：EP06017142.8

申请日：2001-01-23

申请人： FUJI XEROX CO., LTD.

发明人： Kanno, Hiromasa, c/o Fuji Xerox P. S. Co. Ltd.

IPC分类号： B41J2/47

CPC分类号： B41J2/473 ,  H04N1/053 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/506 ,  H04N2201/0471 ,  H04N2201/04722 ,  H04N2201/04732 ,  H04N2201/04744

摘要： A laser color image forming apparatus uses a plurality of laser beams, forms a latent image on a photosensitive belt by laser scanning having a fixed scanning frequency and a pixel forming clock frequency within one scanning, develops the latent image on the photosensitive belt by toner absorption using toner of a color corresponding to each laser beam, and then transfers the developed image to a printing medium such as a paper sheet or the like. Regarding image patterns for the detection of positional deviation, specifically designed to detect the quantity of printing positional deviation of a color to be measured, zonal patterns arrayed on a fixed cycle for a reference color and zonal patterns having shapes similar to the former and designed for the color to be measured are superposed to form a plurality of image patterns on the photosensitive belt. For the respective image patterns, the zonal patterns for the reference color and the color to be measured are shifted from each other based on the mutually different quantities of deviation. The reflection density of each image pattern is measured, and an image pattern having a minimum reflection density is detected. Based on the quantity of deviation of this detected pattern, the quantity of printing positional deviation of the color to be measured is detected. To eliminate the printing positional deviation, based on the detected quantity of printing positional deviation, the scanning start timing of laser scanning and the pixel forming clock frequency are changed.

摘要翻译： 一种激光的彩色图像形成装置使用的激光束的复数，通过激光扫描具有固定扫描频率和像素形成一个扫描内的时钟频率上的感光带形成潜像，通过调色剂吸收显影感光带上的潜像 使用颜色对应于每个激光束的调色剂，然后将所显影的图像到打印介质：诸如纸张或类似物。 关于用于检测位置偏移的图像图案，专门用于检测打印彩色的位置偏差的量被测定具有类似于前者和设计用于形状排列在一个固定周期的基准色，呈带状图案和带状图案 要被测量的颜色重叠形成的图像图案的感光带上的多个。 对于respectivement图像图案，参考颜色和要被测量的颜色的带状图案是基于相互不同的量偏离海誓山盟移位。 每个图像图案的反射密度被测量，并检测具有最小反射密度的图像图案。 在此基础上检测到的模式的偏差的量，在检测打印到待测量的颜色的位置偏差的量。 为了消除打印位置偏差的基础上，打印位置偏差的检测的量，扫描开始激光扫描和像素形成时钟频率的定时被改变。

公开(公告)号：EP1707384A1

公开(公告)日：2006-10-04

申请号：EP06250944.3

申请日：2006-02-22

申请人： CANON KABUSHIKI KAISHA

发明人： Kato, Manabu

IPC分类号： B41J2/47 ,  G02B26/12

CPC分类号： G02B26/123 ,  G02B26/124 ,  G02B26/125

摘要： A scanning optical device includes an incidence optical system that causes the principal rays of all of a plurality of light fluxes emitted from a light source means (1) comprising a plurality of light-emitting parts on the same substrate to impinge upon the same deflecting surface of a light deflector (5) at different angles in a plane orthogonal to a main scanning plane, and be deflected to form a latent image on a plurality of different photosensitive scanning surfaces (8), thereby achieving a scanning optical device and an image forming apparatus that are small in size and inexpensive.

摘要翻译： 扫描光学装置包括入射光学系统，其使得从包括在相同基板上的多个发光部分的光源装置（1）发射的所有多个光束的主射线撞击相同的偏转表面 的光偏转器（5）在与主扫描平面垂直的平面中以不同的角度偏转并在多个不同的光敏扫描表面（8）上形成潜像，从而实现扫描光学装置和图像形成 体积小，价格便宜的装置。

公开(公告)号：EP1456696A4

公开(公告)日：2006-03-01

申请号：EP02790703

申请日：2002-12-03

申请人： CANON KK

发明人： KIMURA KAZUMI

IPC分类号： B41J2/44 ,  B41J2/47 ,  G02B1/11 ,  G02B1/118 ,  G02B5/18 ,  G02B13/00 ,  G02B13/18 ,  G02B26/10 ,  G02B26/12 ,  G02B27/44 ,  H04N1/036 ,  H04N1/113

CPC分类号： G02B27/4211 ,  G02B5/1809 ,  G02B5/1814 ,  G02B26/125 ,  G02B27/4216 ,  G02B27/4227 ,  G02B27/4261

摘要： To obtain an optical element that can reduce Fresnel (surface) reflection on a lens surface to be a cause of flare or ghost, and a scanning optical system having the same. An optical element in which a microstructure grating is provided on at least one optical surface, in which the microstructure grating consists of a structure having an antireflection action corresponding to an incidence angle of light beams.

公开(公告)号：EP1014147B1

公开(公告)日：2005-11-23

申请号：EP99309817.7

申请日：1999-12-07

申请人： Xerox Corporation

发明人： Rees, James D. ,  Bock, Edward C.

IPC分类号： G02B26/12 ,  H04N1/113 ,  B41J2/47

CPC分类号： H04N1/1918 ,  B41J2/473 ,  G02B26/123 ,  G06K15/1257 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/1912

公开(公告)号：EP1566276A3

公开(公告)日：2005-08-31

申请号：EP05003991.6

申请日：2002-12-18

申请人： KONICA CORPORATION

发明人： Sumi, Makoto c/o Konica Corporation ,  Taguchi, Akira c/o Konica Corporation ,  Shiraishi, Takehiro c/o Konica Corporation ,  Shimoji, Masaya c/o Konica Corporation ,  Umeki, Mamoru c/o Konica Corporation ,  Horiuchi, Makoto c/o Konica Corporation

IPC分类号： B41J2/47 ,  B41J2/475 ,  G03D13/00 ,  G03B27/30

CPC分类号： G03B27/306 ,  B41J2/471 ,  B41J2/4753 ,  G03D13/002

摘要： An image forming apparatus (300) comprising: an exposure portion (320) having a light source, for forming a latent image on a photothermographic imaging material by exposing the photothermographic imaging material to a light beam from the light source; a thermal development portion (360) having a heating portion (330) for thermally developing by heating the photothermographic imaging material on which the latent image is formed, and a cooling and conveying portion (340) for conveying and cooling the thermally developed photothermographic imaging material; a detecting member (370) for detecting a quantitative processing history of the photothermographic imaging material thermally developed in the thermal development portion and a control unit (390) for controlling a factor relating to thermal development on a basis of the quantitative processing history detected by the detecting member.

摘要翻译： 一种图像形成装置，包括：具有光源的曝光部分，用于通过将光热敏成像材料暴露于来自光源的光束而在光热敏成像材料上形成潜像; 具有通过加热其上形成潜像的光热成像材料进行热显影的加热部分（330）的热显影部分（360）和用于传送和冷却热显影光热敏成像材料的冷却和传送部分（340） ; 用于检测在所述热显影部分中热显影的所述光热敏成像材料的定量处理历史的检测部件（370），以及用于基于由所述热显影部分检测到的定量处理历史来控制与热显影相关的因素的控制单元（390） 检测部件。