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31. 发明授权

US07796929B2 Method of detecting a phase difference of image bearing members and an image forming apparatus using the method 失效
标题翻译：使用该方法检测图像承载部件和图像形成装置的相位差的方法
公开(公告)号：US07796929B2
公开(公告)日：2010-09-14
申请号：US11934579
申请日：2007-11-02
申请人： Joh Ebara , Toshiyuki Uchida , Noriaki Funamoto
发明人： Joh Ebara , Toshiyuki Uchida , Noriaki Funamoto
IPC分类号： G03G15/01
CPC分类号： G03G15/0131 , G03G15/50 , G03G2215/00071 , G03G2215/0119 , G03G2215/0158
摘要： An image forming apparatus uses a method of detecting a phase difference of the image bearing members such that an image transferring member receives a reference toner mark and a reference image pattern carried by and a reference image bearing member and corresponding image patterns carried by respective corresponding image bearing members for at least one circumferential length of each image bearing member perpendicular to the moving direction of the image transferring member, a plurality of detectors detect the reference and corresponding image patterns, and a controller controls the image bearing members to have a positional relation of the reference image bearing member and each corresponding image bearing member for which the sum of the elapsed time difference of the image pattern with respect to the reference image pattern is minimum.
摘要翻译：图像形成装置使用检测图像承载部件的相位差的方法，使得图像转印部件接收基准调色剂标记和承载的参考图像图案和参考图像承载部件以及由相应的对应图像承载的相应图像图案每个图像承载部件的至少一个圆周长度垂直于图像转印部件的移动方向的多个检测器检测参考和对应的图像图案，并且控制器控制图像承载部件具有位置关系参考图像承载部件以及图像模式相对于基准图像图案的经过时间差之和为最小的每个对应的图像承载部件。

32. 发明授权

US07755399B2 High speed comparator circuit with offset cancellation 有权
标题翻译：具有偏移消除的高速比较器电路
公开(公告)号：US07755399B2
公开(公告)日：2010-07-13
申请号：US11960284
申请日：2007-12-19
申请人： Toshiyuki Uchida
发明人： Toshiyuki Uchida
IPC分类号： G11C27/02
CPC分类号： H03K5/249 , H03F3/45475 , H03F3/45977 , H03F2203/45212
摘要： Provided is a comparator circuit that is capable of operating at high speed and canceling an offset voltage with high precision. The comparator circuit includes a second amplifier circuit for amplifying an output of an amplifier circuit and feeding back the amplified output to an input of the amplifier circuit. When the comparator circuit samples the input voltage, the second amplifier circuit conducts feedback and increases a gain to cancel the offset. Also, when the gain of the amplifier circuit is made lower than the gain of the second amplifier circuit, and the comparator circuit compares the input voltage, the comparing operation can be conducted at high speed by separating the amplifier circuit from the feedback of the second amplifier circuit.
摘要翻译：提供了能够以高速度操作并且以高精度抵消偏移电压的比较器电路。比较器电路包括用于放大放大器电路的输出并将放大的输出反馈到放大器电路的输入的第二放大器电路。当比较器电路对输入电压进行采样时，第二放大器电路进行反馈并增加增益以消除偏移。此外，当放大器电路的增益低于第二放大器电路的增益时，并且比较器电路比较输入电压，可以通过将放大器电路与第二放大器电路的反馈分离来高速地进行比较操作放大电路。

33. 发明授权

US07729024B2 Color drift error correcting method and image forming apparatus 有权
标题翻译：彩色漂移误差校正方法和图像形成装置
公开(公告)号：US07729024B2
公开(公告)日：2010-06-01
申请号：US11542123
申请日：2006-10-04
申请人： Kazuhiko Kobayashi , Joh Ebara , Yasuhisa Ehara , Noriaki Funamoto , Toshiyuki Uchida , Seiichi Handa , Yuji Matsuda
发明人： Kazuhiko Kobayashi , Joh Ebara , Yasuhisa Ehara , Noriaki Funamoto , Toshiyuki Uchida , Seiichi Handa , Yuji Matsuda
IPC分类号： H04N1/58 , H04N1/60
CPC分类号： H04N1/6033 , G03G15/0194 , G03G2215/0132 , G03G2215/0148 , G03G2215/0161 , H04N1/506
摘要： A color-drift correcting method in an image forming apparatus includes a first and a second color-drift correcting. The first color-drift correcting includes correcting the color-drift amount in a sub scanning direction and a skew relative to the reference color image being based on each color-drift amount of at least three mark-patterns, each of which mark-pattern is formed each color image, so as to decide a corrected-image line as a virtual image line for each color, assumed when the color images are superposed onto a transfer media. A second color-drift correcting includes correcting the color-drift amount in the sub scanning direction so that the virtual image lines corresponding to each of the colors other than the reference color intersect with the virtual image line of the reference color at at least two points.
摘要翻译：图像形成装置中的颜色漂移校正方法包括第一和第二颜色漂移校正。第一颜色漂移校正包括基于至少三个标记图案的每个颜色漂移量校正副扫描方向上的色漂量和相对于参考彩色图像的偏斜，每个标记图案是形成每个彩色图像，以便当彩色图像叠加到转印介质上时，将每个颜色的校正图像线确定为虚拟图像线。第二颜色漂移校正包括校正副扫描方向上的色彩漂移量，使得与参考色以外的每种颜色相对应的虚拟图像线至少在两点处与参考色的虚拟图像线相交。

34. 发明授权

US07603061B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US07603061B2
公开(公告)日：2009-10-13
申请号：US11711713
申请日：2007-02-28
申请人： Joh Ebara , Handa Seiichi , Matsuda Yuji , Kouji Amanai , Yasuhisa Ehara , Kobayashi Kazuhiko , Toshiyuki Uchida , Noriaki Funamoto , Sugiyama Keisuke
发明人： Joh Ebara , Handa Seiichi , Matsuda Yuji , Kouji Amanai , Yasuhisa Ehara , Kobayashi Kazuhiko , Toshiyuki Uchida , Noriaki Funamoto , Sugiyama Keisuke
IPC分类号： G03G15/00
CPC分类号： G03G15/5008 , G03G2215/0119
摘要： An image forming apparatus to form an image on a recording medium, capable of reducing deterioration of image bearer, is disclosed. In one embodiment, the image forming apparatus includes an image bearer, a driver to move the image bearer, a image forming device to form a visible image on the image bearer, a contacting member to form a nip by contacting with the image bearer, and a controller to control the driver for driving stop with a distance shifted on a surface of the image bearer from a start of driving. An amount of the shifted distance is greater than a width of the nip and is not a divisional number of a peripheral length of the image bearer.
摘要翻译：公开了一种用于在记录介质上形成图像的图像形成装置，能够减少图像载体的劣化。在一个实施例中，图像形成装置包括图像载体，用于移动图像载体的驱动器，图像形成装置，以在图像载体上形成可见图像;接触构件，通过与图像载体接触形成压区;以及一个控制器，用于控制驾驶员的驾驶停止，从驾驶开始时在图像承载体的表面上移动距离。移动距离的量大于压区的宽度，并且不是图像承载的周长的分割数。

35. 发明申请

US20080166153A1 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US20080166153A1
公开(公告)日：2008-07-10
申请号：US11987994
申请日：2007-12-06
申请人： Yasuhisa Ehara , Kazuhiko Kobayashi , Joh Ebara , Toshiyuki Uchida , Noriaki Funamoto , Keisuke Sugiyama
发明人： Yasuhisa Ehara , Kazuhiko Kobayashi , Joh Ebara , Toshiyuki Uchida , Noriaki Funamoto , Keisuke Sugiyama
IPC分类号： G03G15/00
CPC分类号： G03G15/5008 , G03G15/0194 , G03G2215/00075 , H04N1/506
摘要： After detecting a speed fluctuation pattern per rotation of a photosensitive drum, a process that forms an image based on image data while causing the photosensitive drum to rotate at a nonstandard linear speed is executed as an image forming process by driving a process driving motor that drives the photosensitive drum to curb a speed fluctuation of the photosensitive drum by using a driving speed fine tuning pattern. Before executing the image forming process, a fine-tuning-pattern correcting process is executed for correcting the driving speed fine tuning pattern of the process driving motor, based on the nonstandard linear speed.
摘要翻译：在检测到感光鼓旋转的速度波动图案之后，在使感光鼓以非标准线速度旋转的同时基于图像数据形成图像的处理被执行作为图像形成处理，通过驱动驱动的处理驱动电机感光鼓通过使用驱动速度微调图案来抑制感光鼓的速度波动。在执行图像形成处理之前，执行微调图案校正处理，以基于非标准线速度来校正处理驱动电机的驱动速度微调图案。

36. 发明授权

US07376376B2 Method and apparatus for image forming capable of effectively adjusting image shifts 有权
标题翻译：能够有效调整图像偏移的图像形成方法和装置
公开(公告)号：US07376376B2
公开(公告)日：2008-05-20
申请号：US11374970
申请日：2006-03-15
申请人： Joh Ebara , Toshiyuki Uchida
发明人： Joh Ebara , Toshiyuki Uchida
IPC分类号： G03G15/01 , B41J2/385 , G01D15/16
CPC分类号： G03G15/5008 , G03G15/011 , G03G2215/0119 , G03G2215/0158
摘要： An image forming apparatus includes a plurality of image bearing members configured to bear respective images, an optical writing unit configured to write the respective images on the plurality of image bearing members by deflecting a laser beam on a polygon mirror, a transfer unit configured to transfer the respective images onto an image receiving member, and a controlling unit configured to perform an adjustment of a difference in phase of respective rotation speeds between the plurality of image bearing members at a timing of one of non-image forming operations during a series of image forming operations performed by the plurality of image bearing members, the optical writing unit, and the transfer unit.
摘要翻译：一种图像形成装置包括：多个图像承载部件，被配置为承载各自的图像;光学写入单元，被配置为通过使多个反射镜上的激光束偏转来将各个图像写入多个图像承载部件;转移单元，各图像到图像接收部件上，以及控制部，被配置为在一系列图像中的非图像形成操作之一的定时执行多个图像承载部件之间的各个旋转速度的相位差的调整由多个图像承载部件，光学写入单元和转印单元执行的成形操作。

37. 发明申请

US20070274746A1 METHOD, APPARATUS, AND PROGRAM FOR IMAGE FORMING CAPABLE OF EFFECTIVELY ADJUSTING POSITIONAL DEVIATION 有权
标题翻译：用于图像形成的方法，装置和程序可以有效调整位置偏差
公开(公告)号：US20070274746A1
公开(公告)日：2007-11-29
申请号：US11742379
申请日：2007-04-30
申请人： YASUHISA EHARA , Kazuhiko Kobayashi , Joh Ebara , Seiichi Handa , Noriaki Funamoto , Toshiyuki Uchida , Keisuke Sugiyama , Kouji Amanai
发明人： YASUHISA EHARA , Kazuhiko Kobayashi , Joh Ebara , Seiichi Handa , Noriaki Funamoto , Toshiyuki Uchida , Keisuke Sugiyama , Kouji Amanai
IPC分类号： G03G15/01
CPC分类号： G03G15/0131 , G03G15/0194 , G03G21/02 , G03G2215/0119 , G03G2215/0161
摘要： An image forming apparatus, in which a program for carrying out an image forming method is provided, includes a transfer member to receive respective images formed on a plurality of image bearing members, an image detecting unit to detect the images conveyed on the transfer member, a paper length detecting unit to detect a length of a recording medium in a sheet travel direction, a counting unit to count the number of recording media and to change a count up value according to a detection result by the paper length detecting unit, and a control unit to control an image forming timing with respect to the image bearing members based on a detection timing of the image and to perform a positional deviation adjustment each time a counted value increases by a predetermined amount so as to reduce an amount of a positional deviation of the image.
摘要翻译：一种图像形成装置，其中提供了用于执行图像形成方法的程序，该图像形成装置包括用于接收形成在多个图像承载部件上的各个图像的转印部件，用于检测在转印部件上传送的图像的图像检测单元，纸张长度检测单元，用于检测纸张行进方向上的记录介质的长度;计数单元，用于对记录介质的数量进行计数，并根据纸张长度检测单元的检测结果改变计数上升值;以及控制单元，基于图像的检测定时来控制相对于图像承载部件的图像形成定时，并且每当计数值增加预定量时执行位置偏差调整，以便减少位置偏差量的图像。

38. 发明申请

US20070253736A1 Image forming apparatus capable of effectively forming a quality color image 有权
标题翻译：能够有效地形成优质彩色图像的图像形成装置
公开(公告)号：US20070253736A1
公开(公告)日：2007-11-01
申请号：US11790756
申请日：2007-04-27
申请人： Yasuhisa Ehara , Kazuhiko Kobayashi , Joh Ebara , Kouji Amanai , Seiichi Handa , Yuji Matsuda , Toshiyuki Uchida , Noriaki Funamoto , Keisuke Sugiyama
发明人： Yasuhisa Ehara , Kazuhiko Kobayashi , Joh Ebara , Kouji Amanai , Seiichi Handa , Yuji Matsuda , Toshiyuki Uchida , Noriaki Funamoto , Keisuke Sugiyama
IPC分类号： G03G15/00
CPC分类号： G03G15/0131 , G03G15/5058 , G03G2215/00059 , G03G2215/0119 , G03G2215/0161
摘要： An image forming apparatus includes a plurality of image carriers, an optical writing unit, a plurality of developing units, a transfer member, a transfer unit, an image sensor, and a control unit. In at least one embodiment, the image sensor is configured to sense a positional displacement detection pattern including visible images on the transfer member to detect a positional displacement between the visible images on each of the plurality of image carriers. The control unit is configured to execute a positional displacement correction control to calculate an amount of the positional displacement and determine respective target drive speeds of the plurality of drive sources. The control unit is also configured to control so that the positional displacement detection pattern is formed when the plurality of drive sources are driven at substantially identical speeds and the positional displacement detection pattern thus formed is sensed by the image sensor.
摘要翻译：图像形成装置包括多个图像载体，光学写入单元，多个显影单元，转印构件，转印单元，图像传感器和控制单元。在至少一个实施例中，图像传感器被配置为感测包括传送构件上的可见图像的位置检测图案，以检测多个图像载体中的每一个上的可见图像之间的位置偏移。控制单元被配置为执行位置校正控制以计算位置偏移量并确定多个驱动源的相应目标驱动速度。控制单元还被配置为控制，使得当以基本相同的速度驱动多个驱动源时形成位置偏移检测图案，并且由图像传感器感测由此形成的位置检测图案。

39. 发明申请

US20070212109A1 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US20070212109A1
公开(公告)日：2007-09-13
申请号：US11711713
申请日：2007-02-28
申请人： Joh Ebara , Handa Seiichi , Matsuda Yuji , Kouji Amanai , Yasuhisa Ehara , Kobayashi Kazuhiko , Toshiyuki Uchida , Noriaki Funamoto , Sugiyama Keisuke
发明人： Joh Ebara , Handa Seiichi , Matsuda Yuji , Kouji Amanai , Yasuhisa Ehara , Kobayashi Kazuhiko , Toshiyuki Uchida , Noriaki Funamoto , Sugiyama Keisuke
IPC分类号： G03G15/00
CPC分类号： G03G15/5008 , G03G2215/0119
摘要： An image forming apparatus to form an image on a recording medium, capable of reducing deterioration of image bearer, is disclosed. In one embodiment, the image forming apparatus includes an image bearer, a driver to move the image bearer, a image forming device to form a visible image on the image bearer, a contacting member to form a nip by contacting with the image bearer, and a controller to control the driver for driving stop with a distance shifted on a surface of the image bearer from a start of driving. An amount of the shifted distance is greater than a width of the nip and is not a divisional number of a peripheral length of the image bearer.
摘要翻译：公开了一种用于在记录介质上形成图像的图像形成装置，能够减少图像载体的劣化。在一个实施例中，图像形成装置包括图像载体，用于移动图像载体的驱动器，图像形成装置，以在图像载体上形成可见图像;接触构件，通过与图像载体接触形成压区;以及一个控制器，用于控制驾驶员的驾驶停止，从驾驶开始时在图像承载体的表面上移动距离。移动距离的量大于压区的宽度，并且不是图像承载的周长的分割数。

40. 发明申请

US20070166075A1 METHOD AND APPARATUS FOR IMAGE FORMING CAPABLE OF EFFECTIVELY ELIMINATING COLOR DISPLACEMENT BY RECOGNIZING A ROTATIONAL POSITION OF A ROTATING MEMBER WITH A MECHANISM USING DETECTION MARKS 有权
标题翻译：用于通过使用检测标记识别具有机制的旋转部件的旋转位置来有效消除颜色位移的图像形成方法和装置
公开(公告)号：US20070166075A1
公开(公告)日：2007-07-19
申请号：US11689956
申请日：2007-03-22
申请人： Noriaki Funamoto , Joh Ebara , Toshiyuki Uchida
发明人： Noriaki Funamoto , Joh Ebara , Toshiyuki Uchida
IPC分类号： G03G15/00
CPC分类号： G03G15/5008 , G03G2215/00075 , G03G2215/0119 , G03G2215/0132 , G03G2215/0158 , Y10T74/19949
摘要： An image forming apparatus includes a rotating member, a motor configured to rotate the rotating member, and a marking member having primary and secondary portions. The image forming apparatus also includes a mark sensor configured to detect the primary and secondary portions, and output a primary signal and a secondary signal, and a position sensor configured to determine a rotational position of the rotating member based on a primary reception time of one of the primary and secondary signals that comes immediately after the other of the primary and secondary signals when the position sensor receives the other of the primary and secondary signals at a start of a mark detecting operation. Further, the image forming apparatus includes a motor controller configured to control the motor based on the recognition result and make the rotational position consistent with a target position at a predetermined time during the mark detecting operation.
摘要翻译：图像形成装置包括旋转构件，构造成使旋转构件旋转的马达和具有主要和次要部分的标记构件。图像形成装置还包括：标记传感器，被配置为检测主要部分和次要部分，并输出主要信号和次要信号;以及位置传感器，其配置成基于主要接收时间1确定旋转部件的旋转位置当位置传感器在标记检测操作开始时接收到主信号和次信号中的另一个信号时，主信号和次信号紧接在另一个信号之后。此外，图像形成装置包括电动机控制器，其被配置为基于识别结果控制电动机，并且在标记检测操作期间使预定时间的旋转位置与目标位置一致。

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