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1. 发明授权

US08368734B2 Exposure device, image forming apparatus, exposure control method and computer-readable medium 有权
标题翻译：曝光装置，图像形成装置，曝光控制方法和计算机可读介质
公开(公告)号：US08368734B2
公开(公告)日：2013-02-05
申请号：US12548964
申请日：2009-08-27
申请人： Ken Tsuchiya , Michio Taniwaki , Fumihiko Ogasawara , Toshio Hisamura , Osamu Yasui , Michihiro Inoue
发明人： Ken Tsuchiya , Michio Taniwaki , Fumihiko Ogasawara , Toshio Hisamura , Osamu Yasui , Michihiro Inoue
IPC分类号： B41J2/435 , B41J2/47
CPC分类号： H04N1/40056
摘要： An exposure device includes a plurality of light-emitting elements, a lighting driver, a first storage, a reader, a shading correction unit and a second storage. The lighting driver drives and lights up the light-emitting elements based on image data. The first storage stores light amount unevenness correction values of the respective light-emitting elements. The reader reads the light amount unevenness correction values stored in the first storage. The shading correction unit executes shading correction for the light amount unevenness correction values read by the reader. The second storage stores correction values obtained by having the shading correction unit to execute the shading correction for the light amount unevenness correction values. The lighting driver controls light power of the respective light-emitting elements based on the correction values stored in the second storage.
摘要翻译：曝光装置包括多个发光元件，照明驱动器，第一存储器，读取器，阴影校正单元和第二存储器。照明驱动器基于图像数据驱动并点亮发光元件。第一存储器存储各个发光元件的光量不均匀校正值。读取器读取存储在第一存储器中的光量不均匀性校正值。阴影校正单元对读取器读取的光量不均匀性校正值执行阴影校正。第二存储器存储通过使阴影校正单元执行光量不均匀校正值的阴影校正而获得的校正值。照明驱动器基于存储在第二存储器中的校正值来控制各个发光元件的光功率。

2. 发明申请

US20100182391A1 EXPOSURE DEVICE, IMAGE FORMING APPARATUS AND COMPUTER-READABLE MEDIUM 审中-公开
标题翻译：曝光装置，图像形成装置和计算机可读介质
公开(公告)号：US20100182391A1
公开(公告)日：2010-07-22
申请号：US12563467
申请日：2009-09-21
申请人： Osamu Yasui , Michihiro Inoue , Ken Tsuchiya , Michio Taniwaki , Toshio Hisamura , Fumihiko Ogasawara
发明人： Osamu Yasui , Michihiro Inoue , Ken Tsuchiya , Michio Taniwaki , Toshio Hisamura , Fumihiko Ogasawara
IPC分类号： B41J2/435
CPC分类号： G06K15/1247
摘要： An exposure device includes an exposure section and first and second signal output units. The exposure section has plural light emitting elements. The first signal output unit outputs to the exposure section a first signal for determining timings for starting and ending light emission of the respective light emitting elements. The second signal output unit outputs to the exposure section a second signal for determining as to whether the respective light emitting elements are caused to emit light for respective pixels. If light mission of the respective light emitting elements is stopped with respect to all pixels of one line in a main scanning direction, the first signal does not output to the exposure section for each group of one or plural light emitting elements that operate based on the common first signal.
摘要翻译：曝光装置包括曝光部分和第一和第二信号输出单元。曝光部具有多个发光元件。第一信号输出单元向曝光部分输出用于确定各个发光元件的发光的起始和结束的定时的第一信号。第二信号输出单元向曝光部分输出用于确定各个发光元件是否对各个像素发光的第二信号。如果相对于主扫描方向上的一行的全部像素停止各个发光元件的光任务，则对于基于该扫描方式操作的一组或多个发光元件的组，不向曝光部分输出第一信号共同的第一个信号。

3. 发明授权

US08022974B2 Exposure device, image forming apparatus and computer readable medium storing program for exposure control 有权
标题翻译：曝光装置，图像形成装置和用于曝光控制的计算机可读介质存储程序
公开(公告)号：US08022974B2
公开(公告)日：2011-09-20
申请号：US12568256
申请日：2009-09-28
申请人： Fumihiko Ogasawara , Osamu Yasui , Michihiro Inoue , Ken Tsuchiya , Michio Taniwaki , Toshio Hisamura
发明人： Fumihiko Ogasawara , Osamu Yasui , Michihiro Inoue , Ken Tsuchiya , Michio Taniwaki , Toshio Hisamura
IPC分类号： B41J2/435 , B41J2/47
CPC分类号： G03G15/326 , G03G15/04054 , G06K15/1247
摘要： An exposure device includes plural light emitting elements that light in turn for exposure, plural driving elements that drive each of the light emitting elements and a time changing member that changes one time period of a switching signal to switch light emitting elements driven by the driving elements among the plurality of light emitting elements in turn from a reference time, depending on an image forming speed, wherein the time changing member changes the one time period from the reference time for some of the light emitting elements during one main scan, and maintains the one time period as the reference time for the remaining light emitting elements.
摘要翻译：曝光装置包括依次曝光的多个发光元件，驱动每个发光元件的多个驱动元件和改变切换信号的一个时间周期的时间变化部件，以切换由驱动元件驱动的发光元件根据图像形成速度，从参考时间开始，在多个发光元件中，其中时间变化部件在一个主扫描期间从一些发光元件的基准时间改变一个时间段，并且维持一个时间段作为剩余发光元件的基准时间。

4. 发明授权

US08947486B2 Light emitting element head, light emitting element array chip, and image forming apparatus 有权
标题翻译：发光元件头，发光元件阵列芯片和图像形成装置
公开(公告)号：US08947486B2
公开(公告)日：2015-02-03
申请号：US13301187
申请日：2011-11-21
申请人： Ken Tsuchiya
发明人： Ken Tsuchiya
IPC分类号： B41J2/45 , B41J2/435 , B41J2/47 , B41J27/00
CPC分类号： B41J2/45
摘要： A light emitting element head includes a first light emitting element array, a second light emitting element array, and an optical device. The first light emitting element array includes a plurality of light emitting elements arranged in a main scan direction. The second light emitting element array includes a plurality of light emitting elements arranged in the main scan direction. The optical device focuses a light output from the first light emitting element array and the second light emitting element array on a photoreceptor to form an electrostatic latent image on the photoreceptor. The first light emitting element array and the second light emitting element array are overlapped each other in a sub scan direction in an overlapping section. Interval between the light emitting elements of the first light emitting element array are different from interval between the light emitting elements of the second light emitting element array.
摘要翻译：发光元件头包括第一发光元件阵列，第二发光元件阵列和光学器件。第一发光元件阵列包括沿主扫描方向排列的多个发光元件。第二发光元件阵列包括沿主扫描方向排列的多个发光元件。光学装置将来自第一发光元件阵列和第二发光元件阵列的光输出聚焦在感光体上，以在感光体上形成静电潜像。第一发光元件阵列和第二发光元件阵列在重叠部分中在副扫描方向上彼此重叠。第一发光元件阵列的发光元件之间的间隔与第二发光元件阵列的发光元件之间的间隔不同。

5. 发明申请

US20100060704A1 LIGHT-EMITTING DEVICE, EXPOSURE DEVICE, IMAGE FORMING APPARATUS AND LIGHT-EMISSION CONTROL METHOD 审中-公开
标题翻译：发光装置，曝光装置，图像形成装置和发光控制方法
公开(公告)号：US20100060704A1
公开(公告)日：2010-03-11
申请号：US12368406
申请日：2009-02-10
申请人： Ken Tsuchiya
发明人： Ken Tsuchiya
IPC分类号： B41J2/385
CPC分类号： G03G15/326 , B41J2/45 , G03G15/04045 , G03G2215/0409
摘要： The light-emitting device includes: a light-emitting element array that has plural light-emitting elements arrayed in a line at intervals corresponding to a first resolution; a supply unit that supplies a light-emission signal corresponding to a second resolution, the second resolution being 1/m of the first resolution, where m is an integer not less than 2; a setting unit that divides the plural light-emitting elements into plural sets each including m continuous light-emitting elements in the light-emitting element array, and that sets whether to cause the m continuous light-emitting elements, which are included in each of the plural sets, to emit light on a single set basis by using the light-emission signal supplied from the supply unit; and a correcting unit that corrects the division of the plural light-emitting elements in the light-emitting element array performed by the setting unit, on a single light-emitting element basis.
摘要翻译：发光装置包括：发光元件阵列，其具有以对应于第一分辨率的间隔排列成一行的多个发光元件; 供给单元，其提供与第二分辨率相对应的发光信号，所述第二分辨率为所述第一分辨率的1 / m，其中m为不小于2的整数; 设置单元，其将多个发光元件分成多个发光元件阵列中包含m个连续发光元件的组，并且设置是否使包含在每个发光元件阵列中的m个连续发光元件多个组，通过使用从供给单元供给的发光信号，单个发光; 以及校正单元，其基于单个发光元件校正由设置单元执行的发光元件阵列中的多个发光元件的划分。

6. 发明授权

US08098271B2 Exposure device, light-emitting device, image forming apparatus and failure diagnosing method 有权
标题翻译：曝光装置，发光装置，成像装置和故障诊断方法
公开(公告)号：US08098271B2
公开(公告)日：2012-01-17
申请号：US12368390
申请日：2009-02-10
申请人： Ken Tsuchiya
发明人： Ken Tsuchiya
IPC分类号： B41J2/45
CPC分类号： B41J2/451
摘要： The exposure device includes: a light output device outputting light for exposing a charged image carrier, and including light-emitting elements caused to emit light or not through a control using a light-emission signal, switch elements provided corresponding to the light-emitting elements, and sequentially turned on to set the light-emitting elements ready to emit light, a transfer-signal generating unit generating a transfer signal for sequentially turning on the switch elements, a light-emission signal supply unit supplying the light-emission signal to the light-emitting elements, and a detection unit causing the transfer-signal generating unit to generate a transfer signal having cycles whose number is larger than that of the light-emitting elements, and detecting a potential of an output region of the light-emission signal supply unit while making an output from the light-emission signal supply unit high impedance; and an optical member focusing light outputted by the light output device onto the image carrier.
摘要翻译：曝光装置包括：输出用于曝光带电图像载体的光的光输出装置，并且包括通过使用发光信号的控制而使发光的发光元件不发光的发光元件;对应于发光元件设置的开关元件依次打开以使发光元件准备好发光;传送信号生成单元，生成用于顺序地接通开关元件的传送信号;发光信号供给单元，向以及检测单元，其使所述传送信号生成单元产生具有比所述发光元件的数量大的周期的传送信号，并且检测所述发光信号的输出区域的电位供给单元，同时从发光信号供给单元输出高阻抗; 以及将由光输出装置输出的光聚焦到图像载体上的光学部件。

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