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1. 发明公开

EP2592484A3 Light source control apparatus and image forming apparatus 审中-公开
标题翻译：光源控制装置和摄像装置
公开(公告)号：EP2592484A3
公开(公告)日：2016-10-12
申请号：EP12182519.4
申请日：2012-08-31
申请人： Ricoh Company, Ltd.
发明人： Komai, Kunihiro , Hayashi, Masayuki , Ikeda, Hiroaki , Shikama, Takeshi , Yamaguchi, Akinori , Miyadera, Tatsuya , Kawanabe, Motohiro , Shirasaki, Yoshinori , Yokoyama, Takuhei
IPC分类号： G03G15/043
CPC分类号： G03G15/043 , B41J2/45 , B41J2/47 , G03G15/5033
摘要： A light source control apparatus which controls, based on image data input, light emission of a light source which forms an electrostatic latent image on an image bearing body in an electrophotographic image forming apparatus is disclosed, including a pattern generating unit which generates an internal pattern for position aligning and concentration correcting according to the image data; and a mirroring processing unit which performs a process of mirroring the image data and the internal pattern at a later stage of the pattern generating unit.

2. 发明公开

EP2424209A2 Pixel clock generating device and image forming apparatus 审中-公开
标题翻译： Pixeltakterzeugungsvorrichtung und Bilderzeugungsvorrichtung
公开(公告)号：EP2424209A2
公开(公告)日：2012-02-29
申请号：EP11177766.0
申请日：2011-08-17
申请人： Ricoh Company, Ltd.
发明人： Hayashi, Masayuki , Miyadera, Tatsuya , Shirasaki, Yoshinori
IPC分类号： H04N1/053
摘要： A pixel clock generating device includes: a pixel clock generating unit (130) that generates a pixel clock train in which a correction clock having a time length different from that of a basic clock is intermittently inserted in a basic clock train corresponding to one line in a main scanning direction, wherein each pixel clock train is generated based on a plurality of blocks including a plurality of basic clocks and a plurality of correction clocks, and wherein the pixel clock train includes the plurality of blocks that are different in a correction pattern as a pattern in which the correction clock is inserted.
摘要翻译：像素时钟产生装置包括：像素时钟生成单元，其生成像素时钟串，其中具有与基本时钟不同的时间长度的校正时钟被间歇地插入到对应于一行的基本时钟列中主扫描方向，其中基于包括多个基本时钟和多个校正时钟的多个块生成每个像素时钟序列，并且其中，所述像素时钟列包括在校正图案中不同的所述多个块，插入校正时钟的模式。

3. 发明公开

EP2290585A2 Optical writing device, image forming apparatus, method of controlling optical writing device, and computer program product 审中-公开
标题翻译：光学写入装置，图像形成装置，控制光写入装置和计算机程序产品的方法
公开(公告)号：EP2290585A2
公开(公告)日：2011-03-02
申请号：EP10173818.5
申请日：2010-08-24
申请人： Ricoh Company Ltd.
发明人： Kinoshita, Izumi , Komai, Kunihiro , Miyadera, Tatsuya , Shirasaki, Yoshinori , Yokoyama, Takuhei
IPC分类号： G06K15/12
CPC分类号： G06K15/1247
摘要： An optical writing device (111) includes: a light source (250) including arrays (502) arranged in a main scanning direction, each array (502) including light-emitting elements arranged in the main scanning direction; a correction-value holding unit (222) to hold, correspondingly with a light-emitting element, a correction value for changing timing to read out pixel data stored in an image storage unit (210); and a light-source drive unit (221) to drive the light source (250) by reading out the stored pixel data stored, according to the correction value.
The correction-value holding unit (222) includes a first area for holding a first correction value corresponding to a first light-emitting element located at an end of an array (502) and a second area for holding a second correction value corresponding to a second light-emitting element other than the first light-emitting element, the first holding area being larger than the second holding area.
摘要翻译：光学写入装置（111）包括：光源（250）包括在主扫描方向排列的阵列（502），每个阵列（502）包括在主扫描方向排列的发光元件; 一个修正值保持单元（222）持有，相应地与一个发光元件，用于改变定时来读出存储在图像存储单元（210）的像素数据的校正值; 和一光源驱动单元（221）以驱动由存储所存储的像素数据，gemäß读出校正值，光源（250）。校正值保持部（222）包括：第一区域，用于保持第一校正值对应于位于在阵列（502）和用于保持第二修正值对应于第二区域的端部的第一发光元件比所述第一发光元件的其他的第二发光元件，第一保持区域比所述第二保持面积大。

4. 发明公开

EP1903405A1 Device and method for correcting misregistration, and image forming apparatus 审中-公开
标题翻译：装置和方法，用于错误帧和成像装置的校正
公开(公告)号：EP1903405A1
公开(公告)日：2008-03-26
申请号：EP07115913.1
申请日：2007-09-07
申请人： Ricoh Company, Ltd.
发明人： Miyadera, Tatsuya
IPC分类号： G03G15/00
CPC分类号： G03G15/5058 , G03G15/0194 , G03G2215/00059 , G03G2215/0161
摘要： A misregistration correcting device includes an image forming unit (9Y,9M,9C, and 9BK), a sensor (17,18,19), a reading unit, and a determining unit. The image forming unit (9Y,9M,9C, and 9BK) form a set of misregistration correcting patterns (22) that includes a reference pattern. The sensor (17,18,19) start detecting the set when a predetermined time has elapsed after start of image formation for the first set. The reading unit reads positional information of the set upon detection of the set. The determining unit determines timing to start detecting subsequent sets of misregistration correcting patterns based on positional information of the reference pattern in the first set.
摘要翻译：甲重合失调校正装置包括：图像形成单元（9Y，9M，9C和9BK），传感器（17,18,19），读取单元，以及确定单元。图像形成单元（9Y，9M，9C和9BK）形成（22）一组错误配准校正的图案做包括基准图案。所述传感器（17,18,19）开始检测所述一组当预定时间已经形成图像的第一组的开始后经过。读取单元读取在检测到所述组的组的位置信息。确定性挖掘单元bestimmt定时到开始检测后续组对准不良校正基于所述第一组参考图案的位置信息的模式。

5. 发明授权

EP2431818B1 Optical writing device, image forming apparatus, and method and program product for controlling optical writing device 失效
标题翻译：光学写入装置，图像形成装置以及用于控制光学写入装置的方法和程序产品
公开(公告)号：EP2431818B1
公开(公告)日：2017-11-08
申请号：EP11180995.0
申请日：2011-09-13
申请人： Ricoh Company, Ltd.
发明人： Miyadera, Tatsuya , Komai, Kunihiro , Kinoshita, Izumi , Shirasaki, Yoshinori , Shikama, Takeshi , Yokoyama, Takuhei , Yamaguchi, Akinori
IPC分类号： G03G15/043 , H04N1/387
CPC分类号： G03G15/043 , H04N1/3878

6. 发明公开

EP2290585A3 Optical writing device, image forming apparatus, method of controlling optical writing device, and computer program product 审中-公开
标题翻译：光学写入装置，图像形成装置，控制光写入装置和计算机程序产品的方法
公开(公告)号：EP2290585A3
公开(公告)日：2016-08-24
申请号：EP10173818.5
申请日：2010-08-24
申请人： Ricoh Company Ltd.
发明人： Kinoshita, Izumi , Komai, Kunihiro , Miyadera, Tatsuya , Shirasaki, Yoshinori , Yokoyama, Takuhei
IPC分类号： G06K15/12
CPC分类号： G06K15/1247
摘要： An optical writing device (111) includes: a light source (250) including arrays (502) arranged in a main scanning direction, each array (502) including light-emitting elements arranged in the main scanning direction; a correction-value holding unit (222) to hold, correspondingly with a light-emitting element, a correction value for changing timing to read out pixel data stored in an image storage unit (210); and a light-source drive unit (221) to drive the light source (250) by reading out the stored pixel data stored, according to the correction value.
The correction-value holding unit (222) includes a first area for holding a first correction value corresponding to a first light-emitting element located at an end of an array (502) and a second area for holding a second correction value corresponding to a second light-emitting element other than the first light-emitting element, the first holding area being larger than the second holding area.

7. 发明公开

EP2571243A3 Image forming apparatus 失效
公开(公告)号：EP2571243A3
公开(公告)日：2014-07-09
申请号：EP12181985.8
申请日：2012-08-28
申请人： Ricoh Company, Ltd.
发明人： Yamaguchi, Akinori , Ikeda, Hiroaki , Hayashi, Masayuki , Komai, Kunihiro , Tsuchiya, Fuminori , Takahashi, Motoyoshi , Shirasaki, Yoshinori , Miyadera, Tatsuya
IPC分类号： H04N1/387
CPC分类号： H04N1/3878
摘要： An image forming apparatus includes: a skew correcting unit; a toner consumption amount calculating unit; and a memory assigning unit. The skew correcting unit corrects skew by controlling writing/reading of image data for a plurality of lines into/from a memory based on a skew correction amount that has been calculated previously. The toner consumption amount calculating unit refers to pixels on a plurality of peripheral lines among pixels of the image data stored in the memory when a toner consumption amount of a pixel to which toner adheres is calculated. The memory assigning unit assigns a capacity not used for skew correction on the memory that is mounted for the skew correcting unit to the toner consumption amount calculating unit.

8. 发明公开

EP1887784A3 Displacement correction device, displacement correction method, and image forming device 有权
标题翻译：装置和方法，用于偏移校正和图像形成装置
公开(公告)号：EP1887784A3
公开(公告)日：2008-03-05
申请号：EP07113694.9
申请日：2007-08-02
申请人： Ricoh Company, Ltd.
发明人： Miyadera, Tatsuya
IPC分类号： H04N1/50 , G03G15/00 , G03G15/01
CPC分类号： H04N1/506 , G03G15/0131 , G03G15/50 , G03G2215/0161 , H04N1/00015 , H04N1/00045 , H04N1/00055 , H04N1/00063 , H04N1/00087
摘要： Sensors (17,18,19) detect a displacement correction pattern image-formed on a transporting belt (5). A timing when the sensors (17,18,19) execute a detecting operation is preliminarily set depending on a tolerance in a layout or a dimension of a portion where the displacement correction pattern is image-formed, and the actual timing is detected. Based on the detected timing detected by the sensors (17,18,19), the timing when the sensors execute a detecting operation is modified.

9. 发明公开

EP1887784A2 Displacement correction device, displacement correction method, and image forming device 有权
标题翻译：位移校正装置，位移校正方法和图像形成装置
公开(公告)号：EP1887784A2
公开(公告)日：2008-02-13
申请号：EP07113694.9
申请日：2007-08-02
申请人： Ricoh Company, Ltd.
发明人： Miyadera, Tatsuya
IPC分类号： H04N1/50
CPC分类号： H04N1/506 , G03G15/0131 , G03G15/50 , G03G2215/0161 , H04N1/00015 , H04N1/00045 , H04N1/00055 , H04N1/00063 , H04N1/00087
摘要： Sensors (17,18,19) detect a displacement correction pattern image-formed on a transporting belt (5). A timing when the sensors (17,18,19) execute a detecting operation is preliminarily set depending on a tolerance in a layout or a dimension of a portion where the displacement correction pattern is image-formed, and the actual timing is detected. Based on the detected timing detected by the sensors (17,18,19), the timing when the sensors execute a detecting operation is modified.
摘要翻译：传感器（17,18,19）检测在传送带（5）上成像的位移校正图案。传感器（17,18,19）执行检测操作的定时根据布局的公差或形成位移校正图案的部分的尺寸预先设定，并且实际定时被检测。基于由传感器（17,18,19）检测到的检测到的定时，修改传感器执行检测操作的定时。

10. 发明公开

EP2738618A3 Optical-writing control device, image forming apparatus, and method of controlling optical writing device 审中-公开
标题翻译：光写入控制装置，图像形成装置和光学写入装置的控制方法
公开(公告)号：EP2738618A3
公开(公告)日：2017-08-23
申请号：EP13193745.0
申请日：2013-11-21
申请人： Ricoh Company, Ltd.
发明人： Miyadera, Tatsuya , Hayashi, Masayuki , Kawanabe, Motohiro , Shirasaki, Yoshinori , Murakami, Masatoshi
IPC分类号： G03G15/01 , G03G15/00
CPC分类号： H04N1/00246 , G03G15/0189 , G03G15/5058 , G03G2215/0161 , H04N1/02815
摘要： An optical-writing control device (120) calculates correction values for use in correcting a transfer position at which developing-agent images are to be transferred onto a sheet, and overlaying positions at which the developing-agent images are to be overlaid, based on a detection signal output from a sensor (117) upon detection of a correction pattern (411) for use in correcting the transfer position and a correction pattern (412) for use in correcting the overlaying positions. A timing of detecting the pattern (412) for use in correcting the overlaying positions is determined based on a correction value calculated based on the detection signal output upon detection of the pattern (411) for use in correcting the transfer position. The pattern (411) for use in correcting the transfer position is caused to have a width, in the main-scanning direction, that is wider than the width in the main-scanning direction of the pattern (412) for use in correcting the overlaying positions.
摘要翻译：光学写入控制装置（120）基于以下内容来计算用于校正显影剂图像将被转印到片材上的转印位置和重叠显影剂图像将被重叠的位置的校正值当检测到用于校正转印位置的校正图案（411）时，从传感器（117）输出的检测信号和用于校正重叠位置的校正图案（412）。基于基于在检测用于校正转印位置的图案（411）时输出的检测信号而计算的校正值来确定用于校正重叠位置的图案（412）的定时。用于校正转印位置的图案（411）在主扫描方向上具有比用于校正重叠的图案（412）的主扫描方向上的宽度更宽的宽度位置。

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