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公开(公告)号：US11541668B2
公开(公告)日：2023-01-03
申请号：US17031256
申请日：2020-09-24
发明人： Satoru Arakane , Masao Mimoto , Tsuyoshi Ito
摘要： When a specified image is recorded while ranging over a boundary between a first dot recording range and a second dot recording range, a controller of an image recording apparatus judges whether or not a predetermined condition is fulfilled, the predetermined condition including at least one of a first condition which relates to a duty and a second condition which relates to a positional deviation in a scanning direction of a landing position of a liquid. If the predetermined condition is fulfilled, the dot belonging to a correcting portion is formed by correcting discharge in which the liquid in a discharge amount smaller than a set discharge amount is discharged. If the predetermined condition is not fulfilled, the dot belonging to the correcting portion is formed by ordinary discharge in which the liquid in the set discharge amount is discharged.
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公开(公告)号：US11491800B2
公开(公告)日：2022-11-08
申请号：US17210690
申请日：2021-03-24
发明人： Satoru Arakane , Masao Mimoto , Tsuyoshi Ito
摘要： A printing apparatus includes: a print execution section and a controller. The print execution section includes: a printing head having nozzles, an ink having a specified color being discharged from the nozzles; a head driver which drives the printing head to form dots having the specified color on a printing medium by discharging the ink having the specified color from the nozzles; and a movement mechanism which moves the printing medium relative to the printing head. The controller is configured to: obtain object image data; generate, by using the object image data, a plurality of pieces of dot data indicating formation states of the dots having the specified color, for a plurality of pixels; and print a printing image by causing the print execution section to execute discharge of the ink having the specified color and movement of the printing medium by use of the pieces of dot data.
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公开(公告)号：US11260671B2
公开(公告)日：2022-03-01
申请号：US17096142
申请日：2020-11-12
发明人： Satoru Arakane , Tsuyoshi Ito , Hirotoshi Maehira
IPC分类号： B41J2/21
摘要： A printer includes a print engine and a controller configured to, when a particular condition is satisfied, control the print engine to perform first partial printing to form first dots corresponding to a first portion of a target image without forming second dots corresponding to a second portion of the target image, perform sub scanning over a first distance after the first partial printing and before second partial printing, and perform the second partial printing to form the second dots without forming the first dots, and when the particular condition is not satisfied, control the print engine to perform the first partial printing to form at least a part of the first dots, perform the sub scanning over a second distance different from the first distance after the first partial printing and before second partial printing, and perform the second partial printing to form the second dots.
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公开(公告)号：US10913625B2
公开(公告)日：2021-02-09
申请号：US16261686
申请日：2019-01-30
摘要： A sheet conveying apparatus includes: a conveying roller configured to convey a sheet in a conveying direction; driven rollers arranged with intervals in a width direction intersecting with the conveying direction, the driven rollers being opposed to the conveying roller in a direction perpendicular to the conveying direction and the width direction; and coil springs provided corresponding to the driven rollers respectively and serving as rotating shafts for rotatably supporting the driven rollers, wherein the coil springs include a right-handed twining coil spring and a left-handed twining coil spring.
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公开(公告)号：US10782924B2
公开(公告)日：2020-09-22
申请号：US16671658
申请日：2019-11-01
发明人： Tsuyoshi Ito , Satoru Arakane , Yasuo Ono
摘要： There is provided a controller configured to execute: obtaining of color values of picture elements, respectively, of P pieces of target picture element columns; identifying of a blank picture element, indicating a white color as a brightest color; and identifying a candidate picture element line as a blank line which is a picture element line indicating the white color as the brightest color, the candidate picture element line being constructed of T pieces of picture elements arranged side by side in a second direction and including the P pieces of target picture elements located at a same position in the first direction, in a case that the candidate picture element line satisfies a first blank line condition, wherein the P is a integer in a range of not less than 2 to less than the T.
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公开(公告)号：US10730286B2
公开(公告)日：2020-08-04
申请号：US16443970
申请日：2019-06-18
发明人： Satoru Arakane , Kenji Kawamoto , Tsuyoshi Ito
摘要： There is provided an image recording apparatus including a carriage, a head, a velocity sensor, and a controller. The controller obtains velocity data of the carriage from the velocity sensor, determines a threshold value based on the velocity data, records an image on a recording medium, and suspends a recording pass when the controller has determined that a velocity indicated by the velocity data is lower than a velocity corresponding to the threshold value. The controller can execute a first recording mode and a second recording mode in which the velocity of the carriage is faster than that of the first recording mode. The velocity data for the first recording mode is obtained in a warm-up time after a recording command is received until recording of the image is started. The velocity data for the second recording mode is obtained in other time other than the warm-up time.
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公开(公告)号：US10710384B2
公开(公告)日：2020-07-14
申请号：US16354388
申请日：2019-03-15
发明人： Tsuyoshi Ito , Yuji Koga , Wataru Sugiyama , Kenji Samoto
摘要： An image forming apparatus may include a mechanism for forming a corrugated shape in a sheet to be conveyed. The mechanism may include various components include one or more pressing portions, one or more ribs, one or more discharge rollers, a switching mechanism and the like. In one arrangement, ribs and pressing portions configured to create the corrugated shape may be disposed at various locations upstream or downstream of the platen, recording portion and/or nozzles thereof. In one example, pressing portions may be disposed both upstream and downstream of the nozzles of the recording portion to maintain a corrugated shape in the conveyed sheet. Various other configurations may be used.
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公开(公告)号：US10668758B2
公开(公告)日：2020-06-02
申请号：US15874999
申请日：2018-01-19
发明人： Yusuke Arai , Kenta Horade , Tsuyoshi Ito , Kohei Terada , Tetsuya Saso
摘要： An electronic device is configured to acquire image data containing a test pattern including first and second patterns intersecting with each other. Pixels corresponding to the test pattern are determined by comparing brightness of each pixel with a threshold value, and widths of an overlapped image of the first and second patterns in an orthogonal direction at a plurality of different positions in the reference direction are calculated. Intersecting positions of the first pattern and the second pattern in the test pattern is detected based on a distribution of widths at the plurality of different positions. The test pattern has a model pattern having a set width in the orthogonal direction separate from the first and second patterns. The pixels corresponding to the test pattern are determined based on a threshold value, and widths at the plurality of positions of the overlapped image in the reference direction are calculated.
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公开(公告)号：US20200001598A1
公开(公告)日：2020-01-02
申请号：US16454447
申请日：2019-06-27
发明人： Satoru Arakane , Kenji Kawamoto , Tsuyoshi Ito
IPC分类号： B41J2/045
摘要： An image recording apparatus includes a carriage which reciprocatingly moves in a scanning direction, a head mounted on the carriage to jet liquid, a speed sensor which acquires speed data related to speed of the carriage, and a controller configured to: record an image by executing a recording pass in which the liquid is jetted from the head toward an recording medium while moving the carriage once toward one side in the scanning direction; determine whether the speed indicated by the speed data is lower than a threshold value during the recording pass; and based on determination that the speed indicated by the speed data is lower than the threshold value at a first point of time in the recording pass, determine whether to suspend or continue the recording pass by referring to the speed data acquired after a predetermined time since the first point of time.
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公开(公告)号：US10350914B2
公开(公告)日：2019-07-16
申请号：US15793021
申请日：2017-10-25
发明人： Gakuro Kanazawa , Iwane Sano , Tsuyoshi Ito
IPC分类号： B65H29/12 , B65H29/52 , B41J11/00 , B41J11/08 , B41J2/15 , B41J13/00 , B65H5/06 , B65H5/38 , B41J11/06 , B65H29/70 , B65H5/36 , B41J2/135 , B65H7/02
摘要： An ink-jet recording apparatus includes: an image recorder; a first supporter including support ribs extending to positions under the image recorder; an ink receiver disposed downstream of the support ribs; first and second roller pairs disposed downstream of the first supporter; a guide; and a protrusion disposed between the ink receiver and the first roller pair and having an upper end located below upper ends of the support ribs and above a first imaginary line connecting between a nip position of the first roller pair and a downstream end of the ink receiver. A distance between an upstream end of the ink receiver and a nip position of the second roller pair is less than a length of a first-size sheet and greater than a length of a second-size sheet. The protrusion is disposed, in a widthwise direction, in a region through which the second-size sheet is conveyed.
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