公开(公告)号：US20230302836A1

公开(公告)日：2023-09-28

申请号：US18186982

申请日：2023-03-21

Applicant: SEIKO EPSON CORPORATION

Inventor： Kazunori HIRAMATSU ,  Yuichi SHIKAGAWA ,  Mamoru UKITA

IPC: B41J29/393

CPC classification number: B41J29/393 ,  B41J2029/3935 ,  B41J2203/01

Abstract: A liquid ejecting apparatus includes an ejecting head and a camera unit for acquiring a state of the ejecting head, in which the camera unit includes a camera for imaging an object, a housing in which the camera is housed and which includes an opening on an imaging path that couples the camera and the object, and an opening/closing member, the opening/closing member includes a reference chart serving as a reference for adjustment of the camera and a chart cover, in a first mode, the opening/closing member brings the opening into a closed state, and the chart cover covers the reference chart, in a second mode, the opening/closing member brings the opening into an open state, and the chart cover covers the reference chart, and in a third mode, the opening/closing member brings the opening into the closed state, and the chart cover does not cover the reference chart.

公开(公告)号：US20180339535A1

公开(公告)日：2018-11-29

申请号：US15988318

申请日：2018-05-24

Applicant: SEIKO EPSON CORPORATION

Inventor： Yuichi SHIKAGAWA

IPC: B41J29/393 ,  G06F3/12 ,  B41J2/21 ,  B41J25/00

CPC classification number: B41J29/393 ,  B41J2/2135 ,  B41J2/2146 ,  B41J25/001 ,  G06F3/1208 ,  G06K15/027 ,  H04N1/506 ,  H04N1/6033

Abstract: There is provided a printing apparatus including: an ink jet head that prints on a print medium; a camera that captures an image on the print medium; an LED light source that irradiates a capturing area of the camera with light at a predetermined angle with respect to a print surface of the print medium; a carriage that mounts the ink jet head, the camera, and the LED light source; and a processor that executes calculation based on captured-image-data-of-unprinted-area obtained by capturing an image on the print medium by the camera and captured-image-data-of-test-pattern obtained by capturing an image of a test pattern by the camera, the test pattern being printed on the print medium by the ink jet head, and that acquires corrected captured-image-data representing a captured image of the test pattern, the corrected captured-image-data in which an influence of light irradiation by the LED light source is adjusted.

公开(公告)号：US20200244816A1

公开(公告)日：2020-07-30

申请号：US16752056

申请日：2020-01-24

Applicant: SEIKO EPSON CORPORATION

Inventor： Mamoru UKITA ,  Tetsuo TATSUDA ,  Yuichi SHIKAGAWA ,  Haruhisa KURANE ,  Shigenori KATAYAMA ,  Kazunari TSUKADA

IPC: H04N1/00 ,  G06N3/08 ,  G06N20/00

Abstract: A printer including a motor for transporting an object to be transported, the printer includes: a memory storing a machine-learned model configured to output a control parameter of the motor that brings a transport position of the object to be transported close to a reference based on one or more state variables including at least one of a speed of the object to be transported, an acceleration of the object to be transported, a movement amount of the object to be transported, a start position of movement of the object to be transported, an ambient environment of the printer, a value of a current flowing through the motor, a type of a print medium onto which printing is to be performed by the printer, and an accumulated movement amount of the object to be transported; and a controller configured to control the motor to perform printing by using the control parameter obtained based on the machine-learned model.

公开(公告)号：US20190268497A1

公开(公告)日：2019-08-29

申请号：US16285797

申请日：2019-02-26

Applicant: SEIKO EPSON CORPORATION

Inventor： Yuichi SHIKAGAWA

IPC: H04N1/401 ,  H04N1/407 ,  H04N1/40 ,  H04N1/60

Abstract: An image processing device includes: a sensor that reads a print region and a non-print region of a print medium, an image being printed in the print region, the non-print region being a blank area; and a controller that makes shading correction for an output from the sensor, based on a read result from the sensor. The controller sets a patch image printed in the print region to a black reference, sets the non-print region to a white reference, and makes the shading correction, based on properties of the black reference and the white reference at individual locations.

公开(公告)号：US20200282719A1

公开(公告)日：2020-09-10

申请号：US16810202

申请日：2020-03-05

Applicant: SEIKO EPSON CORPORATION

Inventor： Shigenori KATAYAMA ,  Kazunari TSUKADA ,  Yuichi SHIKAGAWA ,  Tetsuo TATSUDA ,  Mamoru UKITA ,  Haruhisa KURANE

IPC: B41J2/045 ,  G06N20/00 ,  B41J2/165

Abstract: A failure time estimation device includes: a memory configured to store a machine-learned model obtained by performing machine learning using teaching data associating printer information including at least one of operation history of a printer, state information indicating a current state, and a print result image indicating a print result with failure time of the printer; and a controller configured to obtain the printer information and estimate the failure time of the printer using the obtained printer information and the machine-learned model.

公开(公告)号：US20200249892A1

公开(公告)日：2020-08-06

申请号：US16774535

申请日：2020-01-28

Applicant: SEIKO EPSON CORPORATION

Inventor： Yuichi SHIKAGAWA ,  Tetsuo TATSUDA ,  Haruhisa KURANE ,  Mamoru UKITA ,  Shigenori KATAYAMA ,  Kazunari TSUKADA

IPC: G06F3/12 ,  G06N20/00

Abstract: A printer includes: a memory configured to store a machine-learned model obtained by machine learning using teaching data associating at least one of reflectance of a print medium, transmittance of the print medium, and image data obtained by capturing an image of a surface of the print medium with a type of the print medium; and a print controller configured to determine a type of a print medium using at least one of reflectance of the print medium, transmittance of the print medium, and image data obtained by capturing an image of a surface of the print medium and the machine-learned model.

公开(公告)号：US20200247159A1

公开(公告)日：2020-08-06

申请号：US16775427

申请日：2020-01-29

Applicant: SEIKO EPSON CORPORATION

Inventor： Kazuaki SAKURADA ,  Tetsuo TATSUDA ,  Yuichi SHIKAGAWA ,  Mamoru UKITA

IPC: B41J25/308 ,  B41J11/00 ,  B41J19/14

Abstract: A method for determining a working gap includes a first recording step for ejecting ink from a recording head onto a first recording medium to record a test pattern, a first imaging step for capturing the test pattern recorded on the first recording medium in each of a state where a distance between the recording head and the first recording medium is a first distance, and a state where a distance between the recording head and the first recording medium is a second distance, a function calculating step, a second recording step for recording the test pattern on a second recording medium, a second imaging step for capturing the test pattern recorded on the second recording medium, and a working gap determining step for determining, based on the number of pixels of the captured test pattern and a function, a distance between the recording head and the second recording medium.