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1. 发明申请

US20110188891A1 IMAGE FORMING APPARATUS AND IMAGE MAGNIFICATION ADJUSTMENT METHOD 失效
标题翻译：图像形成装置和图像放大调整方法
公开(公告)号：US20110188891A1
公开(公告)日：2011-08-04
申请号：US12981698
申请日：2010-12-30
申请人： Gunmun Ryu , Okito Ogasahara , Kenichi Ohnishi , Naohiro Anan , Yuichi Sugiyama
发明人： Gunmun Ryu , Okito Ogasahara , Kenichi Ohnishi , Naohiro Anan , Yuichi Sugiyama
IPC分类号： G03G15/16
CPC分类号： G03G15/16
摘要： An image forming apparatus has an intermediate transfer belt stretched lightly across rollers to move endlessly in a sub-scanning direction upon image formation and has an outer surface to which a toner image formed by a development unit is transferred. A secondary transfer opposing roller is one of the rollers across which the intermediate transfer belt is stretched. A secondary transfer roller contacts the outer surface of the intermediate transfer belt and transfers the toner image on the intermediate transfer belt to recording paper. A movement mechanism moves at least one of the rollers or the secondary transfer roller and changes a pressed state of the intermediate transfer belt by the secondary transfer roller at a nip of the secondary transfer opposing roller and the secondary transfer roller. A movement mechanism control unit controls a travel distance of the roller to be moved by the movement mechanism.
摘要翻译：图像形成装置具有中间转印带，该中间转印带轻轻地横过辊子，在成像时在副扫描方向上不停地移动，并且具有由显影单元形成的调色剂图像被转印到的外表面。二次转印相对辊是中间转印带被拉伸的辊之一。二次转印辊接触中间转印带的外表面并将中间转印带上的调色剂图像转印到记录纸上。移动机构移动至少一个辊或二次转印辊，并且在二次转印对置辊和二次转印辊的辊隙处，通过二次转印辊改变中间转印带的按压状态。移动机构控制单元控制由移动机构移动的滚子的移动距离。

2. 发明授权

US08467705B2 Image forming apparatus and image magnification adjustment method 失效
标题翻译：图像形成装置和图像放大调整方法
公开(公告)号：US08467705B2
公开(公告)日：2013-06-18
申请号：US12981698
申请日：2010-12-30
申请人： Gunmun Ryu , Okito Ogasahara , Kenichi Ohnishi , Naohiro Anan , Yuichi Sugiyama
发明人： Gunmun Ryu , Okito Ogasahara , Kenichi Ohnishi , Naohiro Anan , Yuichi Sugiyama
IPC分类号： G03G15/16
CPC分类号： G03G15/16
摘要： An image forming apparatus has an intermediate transfer belt stretched lightly across rollers to move endlessly in a sub-scanning direction upon image formation and has an outer surface to which a toner image formed by a development unit is transferred. A secondary transfer opposing roller is one of the rollers across which the intermediate transfer belt is stretched. A secondary transfer roller contacts the outer surface of the intermediate transfer belt and transfers the toner image on the intermediate transfer belt to recording paper. A movement mechanism moves at least one of the rollers or the secondary transfer roller and changes a pressed state of the intermediate transfer belt by the secondary transfer roller at a nip of the secondary transfer opposing roller and the secondary transfer roller. A movement mechanism control unit controls a travel distance of the roller to be moved by the movement mechanism.
摘要翻译：图像形成装置具有中间转印带，该中间转印带轻轻地横过辊子，在成像时在副扫描方向上不停地移动，并且具有由显影单元形成的调色剂图像被转印到的外表面。二次转印相对辊是中间转印带被拉伸的辊之一。二次转印辊接触中间转印带的外表面并将中间转印带上的调色剂图像转印到记录纸上。移动机构移动至少一个辊或二次转印辊，并且在二次转印对置辊和二次转印辊的辊隙处，通过二次转印辊改变中间转印带的按压状态。移动机构控制单元控制由移动机构移动的滚子的移动距离。

3. 发明申请

US20120162670A1 MULTI-BEAM IMAGE FORMING APPARATUS AND ELECTROSTATIC LATENT IMAGE FORMATION METHOD 审中-公开
标题翻译：多波束图像形成装置和静电图像形成方法
公开(公告)号：US20120162670A1
公开(公告)日：2012-06-28
申请号：US13329620
申请日：2011-12-19
申请人： Kenichi Ohnishi , Okito Ogasahara
发明人： Kenichi Ohnishi , Okito Ogasahara
IPC分类号： G06K1/00
CPC分类号： G03G15/0189 , G03G15/5058 , G03G2215/0154 , G03G2215/0158
摘要： An image forming apparatus includes a pattern formation control unit for forming a plurality of evaluation patterns by repeatedly turning on and off a plurality of light emitters arranged in a row in units of n dots (n is an integer equal to or greater than 1) to irradiate light to a photoconductor while changing write timings of the respective light emitters in a predetermined range, an adjustment unit for improving reliability of density difference information among the plurality of evaluation patterns, and a determination unit for obtaining information on densities of the respective evaluation patterns based on a detection result on the densities of the respective evaluation patterns and determining write timings derived from the evaluation pattern having the lowest or highest density as the write timings of the plurality of light emitters.
摘要翻译：图像形成装置包括：图案形成控制单元，用于通过以n点为单位（n为1以上的整数）反复打开和关闭排列成行的多个发光体，形成多个评价图案，在将各个发光体的写入定时改变到预定范围的同时，将光照射到感光体上;调整单元，用于提高多个评价图案之间的浓度差异信息的可靠性;以及确定单元，用于获得关于各个评估图案的密度的信息基于对各个评估模式的密度的检测结果，并且确定从具有最低或最高密度的评估模式导出的写入定时作为多个发光体的写入定时。

4. 发明授权

US08390660B2 Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US08390660B2
公开(公告)日：2013-03-05
申请号：US12717307
申请日：2010-03-04
申请人： Okito Ogasahara
发明人： Okito Ogasahara
IPC分类号： B41J2/435
CPC分类号： G03G15/0435
摘要： An image forming apparatus has a first light controller to shift starts of image writing operations of light sources by a first time interval. A test data storage stores, beforehand, test image data having dot columns formed by one-dot images arranged in a row in a sub-scanning direction and at predetermined intervals in a main scanning direction. An operation controller controls an image carrier at a speed so that adjacent dot images in the sub-scanning direction overlap. A second light controller forms electrostatic latent test images on the image carrier based on timing signals with the image carrier moved by the operation controller, and draws electrostatic latent test images with different time intervals. A density measurer measures densities of the developed test images. A time interval adjusting section adjusts the time interval based on the time interval used to draw the electrostatic latent test image having the lowest measured density.
摘要翻译：图像形成装置具有第一光控制器，用于将光源的图像写入操作的开始移位第一时间间隔。测试数据存储器预先存储具有在副扫描方向上以一行排列并以主扫描方向预定间隔排列的单点图像形成的点列的测试图像数据。操作控制器以速度控制图像载体，使得副扫描方向上的相邻点图像重叠。第二光控制器基于由操作控制器移动的图像载体的定时信号在图像载体上形成静电潜影，并且以不同的时间间隔绘制静电潜影测试图像。密度测量器测量开发的测试图像的密度。时间间隔调整部根据绘制测定密度最低的静电潜像的时间间隔来调整时间间隔。

5. 发明申请

US20100226672A1 IMAGE FORMING APPARATUS 失效
标题翻译：图像形成装置
公开(公告)号：US20100226672A1
公开(公告)日：2010-09-09
申请号：US12717307
申请日：2010-03-04
申请人： Okito Ogasahara
发明人： Okito Ogasahara
IPC分类号： G03G15/043
CPC分类号： G03G15/0435
摘要： An image forming apparatus has a first light controller to shift starts of image writing operations of light sources by a first time interval. A test data storage stores, beforehand, test image data having dot columns formed by one-dot images arranged in a row in a sub-scanning direction and at predetermined intervals in a main scanning direction. An operation controller controls an image carrier at a speed so that adjacent dot images in the sub-scanning direction overlap. A second light controller forms electrostatic latent test images on the image carrier based on timing signals with the image carrier moved by the operation controller, and draws electrostatic latent test images with different time intervals. A density measurer measures densities of the developed test images. A time interval adjusting section adjusts the time interval based on the time interval used to draw the electrostatic latent test image having the lowest measured density.
摘要翻译：图像形成装置具有第一光控制器，用于将光源的图像写入操作的开始移位第一时间间隔。测试数据存储器预先存储具有在副扫描方向上以一行排列并以主扫描方向预定间隔排列的单点图像形成的点列的测试图像数据。操作控制器以速度控制图像载体，使得副扫描方向上的相邻点图像重叠。第二光控制器基于由操作控制器移动的图像载体的定时信号在图像载体上形成静电潜影，并且以不同的时间间隔绘制静电潜影测试图像。密度测量器测量开发的测试图像的密度。时间间隔调整部根据绘制测定密度最低的静电潜像的时间间隔来调整时间间隔。

6. 发明申请

US20100189453A1 IMAGE FORMING APPARATUS 审中-公开
标题翻译：图像形成装置
公开(公告)号：US20100189453A1
公开(公告)日：2010-07-29
申请号：US12691911
申请日：2010-01-22
申请人： Okito Ogasahara
发明人： Okito Ogasahara
IPC分类号： G03G15/043
CPC分类号： H04N1/506 , G03G15/0435 , H04N1/053 , H04N1/1135 , H04N1/12 , H04N1/2323 , H04N1/233 , H04N1/295 , H04N2201/02439 , H04N2201/0471 , H04N2201/04732 , H04N2201/04744 , H04N2201/04755 , H04N2201/04786 , H04N2201/04794
摘要： A write reference signal generating unit uses horizontal synchronization signals output from BD sensors to generate, for each laser scanning unit of respective image forming units, a main scanning write reference signal for irradiating laser light from a semiconductor laser every other predetermined number of reflective surfaces when photosensitive drums are driven to rotate at a second speed of rotation which is slower than a standard speed of rotation. A phase adjustment unit adjusts the phase of a control signal for driving a polygonal mirror, which is output to a polygon motor of each image forming unit, on the basis of a relative time difference between image write timings of the respective laser scanning units as measured by a time difference measurement unit.
摘要翻译：写参考信号生成单元使用从BD传感器输出的水平同步信号，对于各图像形成单元的每个激光扫描单元，生成用于从半导体激光器每隔一定数量的反射面照射激光的主扫描写入基准信号，感光鼓被驱动以比标准旋转速度慢的第二旋转速度旋转。相位调整单元基于被测定的各激光扫描单元的图像写入定时之间的相对时间差来调整用于驱动被输出到各图像形成单元的多边形电机的多角镜的控制信号的相位通过时差测量单元。

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