公开(公告)号：US20230302812A1

公开(公告)日：2023-09-28

申请号：US18324998

申请日：2023-05-28

申请人： FUJIFILM Corporation

发明人： Tadashi KYOSO

IPC分类号： B41J2/175

CPC分类号： B41J2/17596 ,  B41J2/17566

摘要： The liquid supply system includes: a buffer tank (12) in which a liquid to be supplied to a liquid supply target device (15) is stored; a liquid level varying device (78, 82) that changes a liquid level height in the buffer tank; a liquid flow passage (16, 18) through which the liquid supply target device and the buffer tank communicate with each other; a pump (98A) provided in the liquid flow passage; and a valve (97A) for opening and closing the liquid flow passage, in which in a case in which the liquid supply target device is not in operation, the liquid is discharged from the buffer tank to lower the liquid level height in the buffer tank; and the pump and the valve are controlled to allow the liquid to flow into the buffer tank from the liquid flow passage.

公开(公告)号：US20170028751A1

公开(公告)日：2017-02-02

申请号：US15224215

申请日：2016-07-29

申请人： FUJIFILM Corporation

发明人： Yoshikazu HISHINUMA ,  Tadashi KYOSO ,  Yasutoshi HIRABAYASHI ,  Satoshi SHIMOBAYASHI

IPC分类号： B41J25/00

CPC分类号： B41J25/001 ,  B41J2/145 ,  B41J2/155 ,  B41J2/2128 ,  B41J2/2146 ,  B41J2/51 ,  B41J2/515 ,  B41J2202/11 ,  B41J2202/19 ,  B41J2202/20 ,  B41J2202/21 ,  B41J2202/22

摘要： The liquid ejection head has a structure in which three or more head modules including a plurality of ejection elements are arranged along a single direction, and the liquid ejection head includes a first head module, a second head module and a third head module which are arranged in ascending order of slope of ejection volume distribution in the single direction or are arranged in descending order of the slope of the ejection volume distribution in the single direction, the slope of the ejection volume distribution in the single direction being evaluated by subtracting an ejection volume at one end part in the single direction from an ejection volume at the other end part in the single direction.

摘要翻译： 液体喷射头具有其中沿着单个方向布置包括多个喷射元件的三个或更多个头模块的结构，并且液体喷射头包括第一头模块，第二头模块和第三头模块，其布置 按照单向喷射体积分布的斜率的升序排列，或按照单向喷射体积分布的斜率的降序排列，通过减去单个方向上的喷射体积分布的斜率来评估喷射量 在单一方向上的另一端部处的喷射容积的单一方向的一端部。

公开(公告)号：US20150151535A1

公开(公告)日：2015-06-04

申请号：US14551556

申请日：2014-11-24

申请人： FUJIFILM Corporation

发明人： Tadashi KYOSO

IPC分类号： B41J2/045

CPC分类号： B41J2/04501 ,  B41J2/04525 ,  B41J2/2146 ,  B41J25/001 ,  B41J2202/20

摘要： An image forming apparatus that forms an image where occurrence of concentration unevenness caused by occurrence of mechanical crosstalk is suppressed are provided. According to the present invention, the distance from the boundary position of the inkjet head corresponding to the concentration boundary between the first concentration region and the second concentration region to the second concentration region end of the inkjet head is less than the reciprocal of the spatial frequency of the concentration unevenness. Accordingly, the length of the part in the first direction where the inkjet head forms the second concentration region is less than one period of the concentration unevenness. Even if crosstalk due to vibrations of the part where the inkjet head forms the first concentration region occurs, the visibility of the concentration unevenness occurring in the second concentration region can be reduced.

摘要翻译： 提供一种形成图像形成装置，其形成抑制由机械串扰的发生引起的浓度不均匀性的发生的图像。 根据本发明，与喷墨头的与第一浓度区域和第二浓度区域之间的浓度边界对应于喷墨头的第二浓度区域末端的边界位置的距离小于空间频率的倒数 的浓度不均匀性。 因此，喷墨头形成第二浓度区域的第一方向的部分的长度小于浓度不均匀的一个周期。 即使发生由于喷墨头形成第一浓度区域的部分的振动引起的串扰，可以减少在第二浓度区域中发生的浓度不均匀性的可视性。

公开(公告)号：US20240227391A1

公开(公告)日：2024-07-11

申请号：US18611677

申请日：2024-03-20

申请人： FUJIFILM Corporation

发明人： Tadashi KYOSO

IPC分类号： B41J2/045 ,  B41J25/304 ,  B41M3/00

CPC分类号： B41J2/04581 ,  B41J2/04503 ,  B41J2/04516 ,  B41J2/04526 ,  B41J2/04588 ,  B41J25/304 ,  B41M3/008

摘要： In a case where a plurality of times of relative movement between a board and a liquid jet head are performed and liquid is jetted to the board from the liquid jet head during each relative movement to form a pattern on the board, a first relative movement is performed and the liquid is jetted from the liquid jet head to form a first pattern element on the board, a second relative movement is performed and the liquid is jetted from the liquid jet head to form a second pattern element at a position in contact with the first pattern element and to form the pattern including the first pattern element and the second pattern element, and a relative movement speed lower than a relative movement speed of the second relative movement is applied to the first relative movement.

公开(公告)号：US20170297327A1

公开(公告)日：2017-10-19

申请号：US15490908

申请日：2017-04-19

申请人： FUJIFILM Corporation

发明人： Tadashi KYOSO

IPC分类号： B41J2/045

CPC分类号： B41J2/04541 ,  B41J2/0451 ,  B41J2/0458 ,  B41J2/04581 ,  B41J2/04586 ,  B41J2/04588

摘要： A liquid ejection device includes a head driving unit that generates a first driving voltage and a second driving voltage in which whether or not there is ejection of liquid from a first ejection element in a case where the first driving voltage alone is applied to the first ejection element that is a detection target of a short circuit between ejection elements is different from whether or not there is ejection of liquid from the first ejection element in a case where the first driving voltage and the second driving voltage are applied to the first ejection element, supplies the first driving voltage to the first ejection element, and supplies the second driving voltage to the second ejection element suspected of a short circuit with the first ejection element.

公开(公告)号：US20140184696A1

公开(公告)日：2014-07-03

申请号：US14141299

申请日：2013-12-26

申请人： FUJIFILM CORPORATION

发明人： Tadashi KYOSO ,  Hiroyuki SHIBATA

IPC分类号： B41J2/14

CPC分类号： B41J2/14 ,  B41J2/2132 ,  B41J2/2146

摘要： A method for adjusting a head module of an inkjet head in which a plurality of head modules having nozzles capable of ejecting droplets are connected and linked together is disclosed. The inkjet head has an overlapping region in which an arrangement sequence of the head modules corresponding to the ejected droplets is alternate between adjacent head modules. The method includes the steps of: obtaining, among intervals between the droplet ejected by one of the head modules and the droplet ejected by another one of the head modules in the overlapping region, a largest interval between the droplets in a direction of alignment of the head modules based upon movement of the droplets caused by a landing interference; and adjusting the adjacent head modules in a direction to decrease the largest interval between the droplets.

摘要翻译： 公开了一种用于调整喷墨头的头模块的方法，其中具有能够喷射液滴的喷嘴的多个头模块连接并连接在一起。 喷墨头具有重叠区域，其中对应于喷出的液滴的头模块的排列顺序在相邻的头模块之间交替。 该方法包括以下步骤：在由一个头模块喷射的液滴和由重叠区域中的另一个头模块喷射的液滴之间的间隔中获得在液滴之间的最大间隔 基于由着陆干扰引起的液滴移动的头模块; 并且沿着减小液滴之间的最大间隔的方向调节相邻的头模块。

公开(公告)号：US20230271426A1

公开(公告)日：2023-08-31

申请号：US18311885

申请日：2023-05-03

申请人： FUJIFILM Corporation

发明人： Tadashi KYOSO

IPC分类号： B41J2/18 ,  B41J2/175

CPC分类号： B41J2/18 ,  B41J2/17596

摘要： A sequence that includes first processing of generating a positive flow in a first direction in a liquid in a first flow passage including at least a part of a circulation flow passage through which the liquid is supplied from a liquid tank to the liquid jetting head and the liquid is collected from the liquid jetting head to the liquid tank and second processing of generating a negative flow in an opposite direction to the first direction in the liquid in the first flow passage, is executed. In the first flow passage, a filter that removes a foreign substance in the liquid is disposed between the liquid tank and the liquid jetting head in the positive flow. A flow rate of the liquid of the positive flow is higher than a flow rate of the liquid of the negative flow. The negative flow has a steady flow state.

公开(公告)号：US20170120647A1

公开(公告)日：2017-05-04

申请号：US15340963

申请日：2016-11-01

申请人： FUJIFILM Corporation

发明人： Tadashi KYOSO

IPC分类号： B41J29/393 ,  B41J2/045

CPC分类号： B41J29/393 ,  B41J2/04505 ,  B41J2/04586 ,  B41J2/16579 ,  B41J2/16585 ,  B41J2/2142 ,  B41J2/2146

摘要： An inkjet head ejection performance evaluation method includes: printing a test pattern for examining an ejection condition for each nozzle by an inkjet head and reading the test pattern by an image reading device; measuring a first depositing position for each nozzle from a read image to calculate an angle deviation amount of the inkjet head based on the first depositing position and pattern information; calculating at least one of a second depositing position and second deposit displacement amount in which an influence due to angle deviation caused is eliminated; calculating a moving amount caused by rotation of the angle deviation amount from a reference position of the nozzle at a reference attaching angle up to a current nozzle position; and calculating, by using these calculation results, at least one of a distance between the adjacent pixels and a third deposit displacement amount including the influence.

公开(公告)号：US20160052317A1

公开(公告)日：2016-02-25

申请号：US14718928

申请日：2015-05-21

申请人： FUJIFILM Corporation

发明人： Tadashi KYOSO

IPC分类号： B41J29/393

CPC分类号： B41J3/60 ,  B41J29/38

摘要： A gripping region is set at each of first and second ends of paper that is a medium. A region of a first surface excluding the gripping region is set as a first surface printable region. A first image printing region for printing a first image and a first test image printing region for printing a first test image are set in the first surface printable region. A region of a second surface excluding the gripping region is set as a second surface printable region. A second image printing region for printing a second image and a second test image printing region for printing a second test image are set in the second surface printable region. The first and second test image printing regions are set in the same region of the first and second surfaces.

摘要翻译： 夹持区域设置在作为介质的纸的第一和第二端的每一个处。 将除夹持区域之外的第一表面的区域设定为第一表面可印刷区域。 用于打印第一图像的第一图像打印区域和用于打印第一测试图像的第一测试图像打印区域被设置在第一表面可打印区域中。 除了把持区域之外的第二表面的区域被设定为第二表面可印刷区域。 用于打印第二图像的第二图像打印区域和用于打印第二测试图像的第二测试图像打印区域被设置在第二表面可打印区域中。 第一和第二测试图像打印区域被设置在第一和第二表面的相同区域中。

公开(公告)号：US20140111573A1

公开(公告)日：2014-04-24

申请号：US14058990

申请日：2013-10-21

申请人： FUJIFILM CORPORATION

发明人： Tadashi KYOSO

IPC分类号： B41J2/145

CPC分类号： B41J2/145 ,  B41J29/393 ,  B41J2029/3935

摘要： A method for analyzing positional deviation of head modules of an inkjet head having head modules connected and joined with each other includes: dividing a printing pattern and thereby creating division patterns; obtaining conversion factors of the nozzles of each division pattern; changing the number of nozzles used in calculation and thereby obtain a minimum value of a standard error of a positional deviation shift amount; changing the number of divisions of the division patterns and performing the calculation of the conversion factor and the standard error with the changed division patterns; determining the number of divisions and the number of nozzles with which the value of the standard error is minimal; and creating an analysis chart with the determined number of divisions and calculating the positional deviation shift amount based upon an average value of the positional deviation shift amounts of nozzles corresponding to the determined number of nozzles.

摘要翻译： 一种用于分析具有彼此连接和接合的头模块的喷墨头的头模块的位置偏差的方法，包括：分割印刷图案，从而形成分割图案; 获得每个划分图案的喷嘴的转换因子; 改变计算中使用的喷嘴的数量，从而获得位置偏移偏移量的标准误差的最小值; 改变分割图案的分割数，并用改变的分割图案执行转换因子和标准误差的计算; 确定标准误差值最小的划分数和喷嘴数; 以及创建具有确定的分割数的分析图，并且基于与所确定的喷嘴数相对应的喷嘴的位置偏移偏移量的平均值来计算位置偏移偏移量。