公开(公告)号：US20220305777A1

公开(公告)日：2022-09-29

申请号：US17656764

申请日：2022-03-28

Applicant: Seiko Epson Corporation

Inventor： Atsushi TOYOFUKU ,  Toshiro MURAYAMA

IPC: B41J2/045

Abstract: A first acquisition processing is processing of acquiring first information indicative of an ejection characteristic of a first liquid ejected by a liquid ejecting device when a driving waveform candidate is applied to a driving element. A second acquisition processing is processing of acquiring second information indicative of an ejection characteristic of a second liquid ejected from the liquid ejecting device when the driving waveform candidate is applied to the driving element, and the second liquid differs from the first liquid.

公开(公告)号：US20220305776A1

公开(公告)日：2022-09-29

申请号：US17656683

申请日：2022-03-28

Applicant: SEIKO EPSON CORPORATION

Inventor： Atsushi TOYOFUKU ,  Toshiro MURAYAMA

IPC: B41J2/045

Abstract: A drive waveform determination method includes: a first acquisition step of executing first acquisition processing for acquiring, in a first environment condition which is a condition of an environment in which a liquid ejection head is provided, first information on an ejection characteristic of a liquid when each of a plurality of drive waveform candidates is applied to a drive element; a second acquisition step of executing second acquisition processing for acquiring, in a second environment condition which is a condition of the environment in which the liquid ejection head is provided and is different from the first environment condition, second information on the ejection characteristic when each of the plurality of drive waveform candidates is applied to the drive element; and a waveform determination step of determining a drive waveform based on the first information and the second information.

公开(公告)号：US20230382108A1

公开(公告)日：2023-11-30

申请号：US18324270

申请日：2023-05-26

Applicant: SEIKO EPSON CORPORATION

Inventor： Toshiro MURAYAMA ,  Atsushi TOYOFUKU

IPC: B41J2/045

CPC classification number: B41J2/04588 ,  B41J2/04581

Abstract: A drive waveform determination method determines a waveform of a drive pulse to be applied to a driven element provided in a liquid ejection head for ejecting a liquid and includes a first process of acquiring an exclusion condition and a second process of determining the waveform of the drive pulse based on multiple candidate waveforms and the exclusion condition.

公开(公告)号：US20220101213A1

公开(公告)日：2022-03-31

申请号：US17482457

申请日：2021-09-23

Applicant: SEIKO EPSON CORPORATION

Inventor： Kimitake MIZOBE ,  Ryutaro SEKI ,  Atsushi TOYOFUKU ,  Jun TODA

IPC: G06Q10/04 ,  G06F30/20

Abstract: (a) Determine first, second indexes. (b) Acquire values of the first, second indexes after a robot works using a parameter set. (c) Determine a new parameter set using a multi-objective optimization technique with a function containing the first, second indexes as an objective function. (d) Acquire values of the first, second indexes using the new parameter set. (e) Acquire parameter sets and values of the first, second indexes thereof by repeating (c), (d). (f) Perform display based on the values of the first, second indexes with respect to two or more of the parameter sets. The value of the first index of the first parameter set is better than the value of the first index of the second parameter set. The value of the second index of the second parameter set is better than the value of the second index of the first parameter set.

公开(公告)号：US20220305794A1

公开(公告)日：2022-09-29

申请号：US17656765

申请日：2022-03-28

Applicant: Seiko Epson Corporation

Inventor： Atsushi TOYOFUKU ,  Toshiro MURAYAMA

IPC: B41J2/175 ,  B41J2/045

Abstract: A liquid selecting method includes an acquiring step of executing first acquisition processing for each of a plurality of first liquid candidates, the first acquisition processing being processing of acquiring first information about a first ejection characteristic of a liquid to be ejected from a liquid ejecting head when a driving waveform is applied to a driving element of the liquid ejecting head, and a liquid selecting step of selecting one or more liquids to be ejected from the liquid ejecting head based on the first information and at least some of the plurality of first liquid candidates.

公开(公告)号：US20220126440A1

公开(公告)日：2022-04-28

申请号：US17509100

申请日：2021-10-25

Applicant: SEIKO EPSON CORPORATION

Inventor： Kimitake MIZOBE ,  Ryutaro SEKI ,  Atsushi TOYOFUKU ,  Jun TODA

IPC: B25J9/16

Abstract: A method of the present disclosure includes (a) a step of receiving track information for specifying a track of a target operation of a robot, (b) a step of acquiring, according to an instruction to adjust a parameter set for controlling the target operation, about one or more initial parameter sets, values of evaluation indicators of control results obtained when causing the robot to execute the target operation using the respective initial parameter sets, (c) a step of displaying, on a display section, one or more reference displays based on the acquired values of the evaluation indicators, and (d) a step of receiving an input of condition information for deciding a condition of optimization processing for the parameter set, the condition information being condition information about the evaluation indicators, performing the optimization processing for the parameter set according to the condition information, and determining a value of a new parameter set.

公开(公告)号：US20220032615A1

公开(公告)日：2022-02-03

申请号：US17387647

申请日：2021-07-28

Applicant: Seiko Epson Corporation

Inventor： Atsushi TOYOFUKU ,  Toshiro MURAYAMA ,  Takahiro KATAKURA

IPC: B41J2/045

Abstract: A driving waveform determining method with which a waveform of a driving pulse applied to a driving element provided in a liquid ejecting head that ejects a liquid is determined includes: a first step of measuring, by performing a simulation, ejection characteristics of the liquid from the liquid ejecting head when a waveform candidate is used for the driving pulse; a second step of measuring, by performing an actual measurement, the ejection characteristics of the liquid from the liquid ejecting head when the waveform candidate is used for the driving pulse; and a third step of determining the waveform of the driving pulse in accordance with a measurement result obtained in the first step and a measurement result obtained in the second step.

公开(公告)号：US20250018732A1

公开(公告)日：2025-01-16

申请号：US18768116

申请日：2024-07-10

Applicant: SEIKO EPSON CORPORATION

Inventor： Atsushi TOYOFUKU

IPC: B41J3/46 ,  B41J2/01 ,  G06F3/12

Abstract: Provided is an information processing apparatus used in order to determine a drive waveform to be applied to a liquid ejection head, including: an acquisition unit that acquires a plurality of pieces of information being different from one another in terms of each of a plurality of candidates for the drive waveform; a second reception unit that receives input by a user regarding first condition information out of the plurality of pieces of information; and a first display unit that performs display corresponding to the candidates for the drive waveform satisfying a condition indicated by the first condition information while associating first evaluation information out of the plurality of pieces of information with a first axis and associating second evaluation information out of the plurality of pieces of information with a second axis intersecting with the first axis, respectively.

公开(公告)号：US20230415478A1

公开(公告)日：2023-12-28

申请号：US18339355

申请日：2023-06-22

Applicant: SEIKO EPSON CORPORATION

Inventor： Atsushi TOYOFUKU ,  Toshiro MURAYAMA

IPC: B41J2/045

CPC classification number: B41J2/04573 ,  B41J2/04586

Abstract: A method of determining an ejection state of a liquid ejecting head having a plurality of nozzles that are arrayed in a second direction intersecting a first direction and from which liquid is ejected in the first direction includes: an acquiring step of acquiring a plurality of positional information items by capturing, at a plurality of timings, images of droplets ejected from the plurality of nozzles; and a determining step of determining the ejection state based on the plurality of positional information items.

公开(公告)号：US20230415477A1

公开(公告)日：2023-12-28

申请号：US18341817

申请日：2023-06-27

Applicant: SEIKO EPSON CORPORATION

Inventor： Atsushi TOYOFUKU ,  Toshiro MURAYAMA

IPC: B41J2/045

CPC classification number: B41J2/04536 ,  B41J2/04586

Abstract: An ejection state determination method for determining an ejection state of a liquid ejecting head in which a plurality of nozzles for ejecting a liquid in a first direction are arranged in a second direction intersecting the first direction. The ejection state determination method includes a first obtaining step of obtaining a plurality of pieces of multi-valued data of an image including a plurality of pixels by capturing, at one timing, an image of a droplet ejected from one nozzle selected from the plurality of nozzles, and a second obtaining step of obtaining determination information from the plurality of pieces of multi-valued data.