公开(公告)号：US20170305145A1

公开(公告)日：2017-10-26

申请号：US15490909

申请日：2017-04-19

Applicant: FUJIFILM Corporation

Inventor： Tadashi KYOSO

IPC: B41J2/045

CPC classification number: B41J2/0451 ,  B41J2/0458 ,  B41J2/04581 ,  B41J2/04586 ,  B41J2/2142 ,  B41J2/2146

Abstract: A pattern formation device, a liquid ejection device, and an electrical fault detection method capable of detecting electrical fault of a liquid ejection head on the basis of an analysis result of an electrical fault detection pattern are provided. An electrical fault detection pattern having an arrangement of dot arrays satisfying an arrangement condition with an arrangement of a plurality of ejection elements in a liquid ejection head is formed by ejecting liquid from a liquid ejection head in which M rows of ejection element groups in which a plurality of ejection elements are arranged in a first direction are arranged in a second direction intersecting the first direction, and M is an integer equal to or greater than 2.

公开(公告)号：US20170144463A1

公开(公告)日：2017-05-25

申请号：US15355006

申请日：2016-11-17

Applicant: FUJIFILM Corporation

Inventor： Tadashi KYOSO

IPC: B41J29/393 ,  B41J2/01

CPC classification number: B41J2/2132 ,  B41J2/01 ,  B41J2/04543 ,  B41J2/04558 ,  B41J2/16579 ,  B41J2/2135 ,  B41J2/2139 ,  B41J2/2142 ,  B41J2/2146 ,  B41J29/393 ,  B41J2029/3935 ,  B41J2202/20

Abstract: The inkjet head ejection performance evaluation method includes: printing a test pattern for examining an ejection condition for each nozzle by an inkjet head having a plurality of nozzles arrayed in a matrix and is read by an image reading device; and measuring a depositing position for each nozzle from the read image to calculate a deposit displacement amount based on the depositing position and pattern information, wherein a position of a center of gravity in a Y direction of nozzles used for calculation for calculating the deposit displacement amount of the nozzle number n is equal to a position of a center of gravity in the Y direction of all nozzles existing in the nozzle range of the nozzles used for calculation, where a direction of relative movement between the inkjet head and a recording medium is the Y direction.

公开(公告)号：US20170066268A1

公开(公告)日：2017-03-09

申请号：US15354203

申请日：2016-11-17

Applicant: FUJIFILM Corporation

Inventor： Tadashi KYOSO ,  Jun YAMANOBE ,  Katsuto SUMI

IPC: B41J29/393 ,  B41J2/21

CPC classification number: B41J29/393 ,  B41J2/155 ,  B41J2/21 ,  B41J2/2142 ,  B41J2/2146 ,  B41J29/38 ,  B41J2025/008 ,  H04N1/6033 ,  H04N1/6036

Abstract: Provided are an image recording apparatus that efficiently detects defective recording elements causing image defects in a plurality of recording heads and a method of detecting the defective recording elements. An image recording apparatus including: a plurality of recording heads; an indicator acquisition unit for acquiring an indicator which relatively indicates how easily image defects are visually perceived for each color, an appearance ratio setting unit for setting an appearance ratio of a test pattern as a higher value as the indicator of each color becomes higher; a recording unit for recording the test pattern of each color on a recording medium at the appearance ratio; an imaging unit for capturing an image of the test pattern which is recorded on the recording medium; and an analysis unit for analyzing the captured test pattern and detecting a defect of a recording element in the recording head.

Abstract translation: 提供了一种图像记录装置，其有效地检测导致多个记录头中的图像缺陷的缺陷记录元件以及检测缺陷记录元件的方法。 一种图像记录装置，包括：多个记录头; 指示器获取单元，用于获取指示器，其相对地指示每个颜色的视觉上感觉到图像缺陷的容易程度;用于将作为每种颜色的指标的测试图案的出现率设置为较高值的出现比率设置单元变得更高; 记录单元，用于以出现比率在记录介质上记录每种颜色的测试图案; 用于捕获记录在记录介质上的测试图案的图像的成像单元; 以及分析单元，用于分析捕获的测试图案并检测记录头中的记录元件的缺陷。

公开(公告)号：US20160059599A1

公开(公告)日：2016-03-03

申请号：US14733593

申请日：2015-06-08

Applicant: FUJIFILM Corporation

Inventor： Tadashi KYOSO

IPC: B41J29/38

CPC classification number: B41J29/38 ,  B41J2/0451 ,  B41J2/04558 ,  B41J2/16579 ,  B41J2/16585 ,  B41J2/2139 ,  B41J2/2142 ,  B41J2/2146 ,  B41J2002/1657

Abstract: In an image recording method of an image recording apparatus provided with an inspection unit which inspects the presence/absence of abnormality in each recording element of a print head at regular intervals, the recording element determined to have abnormality by inspection in the inspection unit is disabled during a determination period set in advance. If the disabled recording element is determined to have no abnormality by inspection immediately after the recording element is disabled, recovers the recording element to be enabled. If the disabled recording element is determined to have abnormality again by inspection within a prescribed frequency N from inspection immediately after the recording element is disabled, the recording element is continuously disabled during the determination period. In cases where the recording element is disabled, the use of the disabled recording element is prohibited, image defect due to the use-prohibited recording element is complemented, and an image is recorded.

Abstract translation: 在具有检查单元的图像记录装置的图像记录方法中，检查单元以规则的间隔检查打印头的每个记录元件中是否存在异常，禁止在检查单元中通过检查确定为异常的记录元件 在确定期间提前设定。 如果在记录元件被禁用之后立即通过检查确定禁用的记录元件没有异常，则恢复要启用的记录元件。 如果禁止的记录元件被确定为在禁止记录元件之后立即检查的规定频率N内通过检查再次发生异常，则在确定周期期间，记录元件被连续地禁用。 在禁止记录元件的情况下，禁止使用禁用的记录元件，补充使用禁止记录元件造成的图像缺陷，并记录图像。

公开(公告)号：US20150336381A1

公开(公告)日：2015-11-26

申请号：US14716129

申请日：2015-05-19

Applicant: FUJIFILM CORPORATION

Inventor： Tadashi KYOSO ,  Katsuto SUMI ,  Jun YAMANOBE

IPC: B41J2/045

CPC classification number: B41J2/0451 ,  B41J2/04581 ,  B41J2/165 ,  B41J2/16579 ,  B41J29/38 ,  B41J2202/20

Abstract: Provided are an ink jet recording apparatus and an abnormality detection method of an ejector which are capable of performing high-accuracy abnormality detection and suppressing the generation of excessive abnormality detection with respect to a required image quality. An ink jet recording apparatus (10) includes an ink jet head (20C, 20M, 20Y, 20K) having a plurality of ejectors, a medium transport unit (22), a calculation unit (34) that calculates an index value relevant to a droplet ejection amount for each ejector on the basis of printing data, a threshold determination unit (40) that determines a threshold for ejection abnormality determination for each ejector in accordance with the index value, a threshold storage unit (44) that stores the threshold determined for each ejector, and an abnormality determination unit (54) that determines the presence or absence of ejection abnormality by comparing the threshold with a measurement amount for each ejector.

Abstract translation: 提供了能够进行高精度异常检测并且抑制相对于所需图像质量的过度异常检测的产生的喷射器的喷墨记录装置和异常检测方法。 喷墨记录装置（10）包括具有多个喷射器的喷墨头（20C，20M，20Y，20K），介质传送单元（22），计算单元（34），计算与 基于打印数据的每个喷射器的液滴喷射量，根据所述指标值确定每个喷射器的喷射异常确定的阈值的阈值确定单元（40），存储所确定的阈值的阈值存储单元（44） 以及通过将阈值与每个喷射器的测量量进行比较来确定喷射异常的存在或不存在的异常判定单元（54）。