公开(公告)号：US11386312B2

公开(公告)日：2022-07-12

申请号：US17017445

申请日：2020-09-10

Applicant: KYOCERA Document Solutions Inc.

Inventor： Yuki Fukasawa ,  Atsushi Kimura ,  Shin Ishikawa ,  Hikaru Miyaji ,  Kosuke Nakajima ,  Yosuke Morishita ,  Masaaki Nishihara

IPC: G06K15/02

Abstract: An image forming apparatus includes a print engine, a sheet transportation unit, an optical sensor, and an image processing unit. The print engine is configured to physically print an image to be printed on a print sheet. The sheet transportation unit is configured to transport the print sheet along a predetermined transportation path. The optical sensor is arranged so as to face the transportation path, and configured to detect a color of a test chart on a colored print sheet transported along the transportation path. The image processing unit is configured to perform color correction of the image to be printed on the colored print sheet, on the basis of the detected color of the test chart on the colored print sheet so as to restrain color change of the image due to a surface color of the colored print sheet.

公开(公告)号：US11383538B2

公开(公告)日：2022-07-12

申请号：US17070017

申请日：2020-10-14

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kazuhisa Kondo

IPC: B65H5/06 ,  B65H29/12 ,  B41J13/076 ,  B41J13/03

Abstract: A sheet conveying device includes a conveying roller configured to convey a sheet and a plurality of driven rotating units. The conveying roller includes a plurality of roller portions disposed at positions opposite to the driven rotating units. Each of the roller portions has three or more annular grooves arranged side by side. Each of the driven rotating units includes three or more driven rotating bodies that are disposed at positions opposite to the annular grooves, respectively. A plurality of convex portions and a plurality of concave portions are alternately provided on an outer edge of each of the driven rotating bodies. The driven rotating bodies include two first rotating bodies positioned at both ends and one or more second rotating bodies located between the first rotating bodies and having an outer diameter smaller than the outer diameter of the first rotating bodies.

公开(公告)号：US11377319B2

公开(公告)日：2022-07-05

申请号：US16937156

申请日：2020-07-23

Applicant: KYOCERA Document Solutions Inc.

Inventor： Takashi Kotani ,  Kazuhisa Iwamoto

IPC: B65H29/14 ,  B65H7/14 ,  B65H29/40 ,  B65H29/48 ,  B65H29/50 ,  B65H29/20 ,  B65H31/26 ,  B65H43/08

Abstract: A sheet loading device includes a discharge roller pair, a loading tray, a paddle member, a sheet holding member, a tray lifting-lowering drive portion, a top surface detection sensor, and a control portion. The control portion is capable of performing a lifting-lowering operation to arrange the loading tray at a reference position by lowering the loading tray with the sheet holding member arranged at the holding position to turn the top surface detection sensor into an off state, then lifting the loading tray to turn the top surface detection sensor into an on state, and then lowering the loading tray again to turn the top surface detection sensor into the off state and stopping the loading tray. With the loading tray at the reference position, a predetermined clearance is provided between a top surface of a sheet loaded on the loading tray and a rotational orbit of the paddle member.

公开(公告)号：US20220210278A1

公开(公告)日：2022-06-30

申请号：US17555928

申请日：2021-12-20

Applicant: KYOCERA Document Solutions Inc.

Inventor： RUI HAMABE ,  Kazunori Tanaka ,  Kanako Morimoto ,  Takuya Miyamoto ,  Koji Sato

IPC: H04N1/00

Abstract: An image processing apparatus includes an anomaly detecting unit configured to detect anomalies included in a target image; and an anomaly exclusion processing unit configured to exclude a specific anomaly among the detected anomalies. Further, the anomaly exclusion processing unit excludes one of an anomaly and another anomaly among the detected anomalies, if (a) a detection area of the anomaly, a detection area of the other anomaly, and an overlapping area of the detection areas of the anomaly and the other anomaly satisfy a predetermined condition and (b) a type of the anomaly and a type of the other anomaly are different from each other.

公开(公告)号：US20220207853A1

公开(公告)日：2022-06-30

申请号：US17563355

申请日：2021-12-28

Applicant: KYOCERA Document Solutions Inc.

Inventor： Takuya MIYAMOTO ,  Kazunori TANAKA ,  Kanako MORIMOTO ,  Rui HAMABE ,  Naomichi HIGASHIYAMA

IPC: G06V10/422 ,  G06V10/77 ,  G06N20/00

Abstract: An image recognition method includes a feature amount extracting step of generating, from an input image, a base feature map group including a plurality of base feature maps; an inferring step of deriving a plurality of inference results using each of a plurality of machine-learned inference devices for a plurality of inference inputs based on the base feature map group; and an integrating step of integrating the plurality of inference results by a specific manner to derive a final inference result, where each of the plurality of inference inputs has some or all base feature maps of the plurality of base feature maps, and each of the plurality of inference inputs has the some or all base feature maps that are different in part or whole from the some or all base feature maps of another inference input in the plurality of inference inputs.

公开(公告)号：US20220207705A1

公开(公告)日：2022-06-30

申请号：US17558496

申请日：2021-12-21

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kanako Morimoto ,  Kazunori Tanaka ,  Koji Sato ,  Takuya Miyamoto ,  Rui Hamabe

IPC: G06T7/00 ,  G06K15/02

Abstract: A processor determines an image defect in a test image obtained through an image reading process performed on an output sheet output by an image forming apparatus. The processor derives a vertical data string that is composed of data about horizontal representative values serving as representative values of a plurality of pixel values in each line in a horizontal direction in the test image. Moreover, the processor determines the presence or absence of at least one periodicity set in advance in the vertical data string by performing frequency analysis on the vertical data string. Furthermore, the processor determines the occurrence or non-occurrence and the cause of periodic density unevenness serving as a type of the image defect according to the determination result on the periodicity.

公开(公告)号：US20220207702A1

公开(公告)日：2022-06-30

申请号：US17558350

申请日：2021-12-21

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kazunori Tanaka ,  Kanako Morimoto ,  Takuya Miyamoto ,  Koji Sato ,  Rui Hamabe

IPC: G06T7/00 ,  G06T7/13 ,  G06T5/00 ,  G06V10/75

Abstract: A processor determines a cause of an image defect based on a test image that is obtained through an image reading process performed on an output sheet output from an image forming device. The processor generates an extraction image by extracting, from the test image, a noise point that is a type of image defect. Furthermore, the processor determines a cause of the noise point by using at least one of, in the extraction image: an edge strength of the noise point; a degree of flatness of the noise point; and a pixel value distribution of a transverse pixel sequence that is a pixel sequence traversing the noise point.

公开(公告)号：US20220207694A1

公开(公告)日：2022-06-30

申请号：US17555871

申请日：2021-12-20

Applicant: KYOCERA Document Solutions Inc.

Inventor： Rui Hamabe ,  Kazunori Tanaka ,  Kanako Morimoto ,  Takuya Miyamoto ,  Koji Sato

IPC: G06T7/00

Abstract: An image processing apparatus includes an anomaly detecting unit, and an anomaly unification processing unit. The anomaly detecting unit is configured to detect anomalies included in a target image. The anomaly unification processing unit is configured to unify specific anomalies among the detected anomalies. Further, if a type of an anomaly among the detected anomalies is the same as a type of another anomaly among the detected anomalies, the anomaly unification processing unit (a) determines whether the anomaly and the other anomaly should be unified or not on the basis of a relationship between a position of the anomaly and a position of the other anomaly, and (b) unifies the anomaly and the other anomaly if it is determined that the anomaly and the other anomaly should be unified.

公开(公告)号：US20220206425A1

公开(公告)日：2022-06-30

申请号：US17558505

申请日：2021-12-21

Applicant: KYOCERA Document Solutions Inc.

Inventor： Takuya Miyamoto ,  Kazunori Tanaka ,  Kanako Morimoto ,  Koji Sato ,  Rui Hamabe

IPC: G03G15/00

Abstract: A processor generates an extraction image by extracting, from a test image, a target specific part that is a horizontal stripe extending in a horizontal direction or a noise point. The processor derives a vertical data sequence from a target area in the extraction image and converts the vertical data sequence to primary conversion data of a frequency domain. The processor converts, to secondary conversion data of a space domain, correction data that is obtained by removing, from the primary conversion data, data of frequency bands other than a particular frequency band corresponding to a target specific part that was determined as having periodicities. The processor classifies the target specific parts into periodic specific part and non-periodic specific part by comparing positions of the target specific parts with a peak position in a waveform represented by the secondary conversion data.

公开(公告)号：US11370625B2

公开(公告)日：2022-06-28

申请号：US16559437

申请日：2019-09-03

Applicant: KYOCERA Document Solutions Inc.

Inventor： Seiji Okada ,  Masami Fuchi ,  Sachio Izumichi ,  Masayuki Kakuta ,  Risa Hibino

IPC: B65H9/10 ,  B65H5/06 ,  B65H9/20 ,  B65H9/00 ,  B65H15/00

Abstract: A sheet conveying device includes a correcting unit. The correcting unit corrects displacement of a sheet conveyed from an upstream side conveying path, and conveys the sheet to a downstream side conveying path. The correcting unit includes a first conveying part conveying the sheet, a first moving part moving a first frame supporting the first conveying part and a detecting part detecting a side end edge of the sheet at a reference position without displacement. The first conveying part stops conveyance of the sheet when a leading end of the sheet reaches the detecting part. While the driving of the first conveying part is stopped, the first moving part moves the first frame to move the sheet, and stops movement of the first frame, when detection result of the detecting part is changed, to position the side end edge to the reference position to correct displacement of the sheet.