公开(公告)号：US12115800B2

公开(公告)日：2024-10-15

申请号：US18054931

申请日：2022-11-14

Applicant: Brother Kogyo Kabushiki Kaisha

Inventor： Satoru Arakane

IPC: B41J2/21 ,  B41J2/165

CPC classification number: B41J2/2146 ,  B41J2/16579 ,  B41J2/2139 ,  B41J2/2142

Abstract: A liquid ejecting apparatus includes an ejection head, a carriage, a conveyor and a controller configured to, when it is determined that the state of the ejection is in a first state, execute a first printing process and, when it is determined that the state of the ejection is in a second state, execute a second printing process. In the first printing process, (i) a previous pass-printing is performed, (ii) the printed medium is conveyed by a first distance after the previous pass-printing, and (iii) a succeeding pass-printing is performed after the conveyance of the printed medium. In the second printing process, (i) the previous pass-printing is performed, (ii) the printed medium is conveyed by a second distance larger than the first distance after the previous pass-printing, and (iii) the succeeding pass-printing is performed after the conveyance of the printed medium, in the interlaced-printing.

公开(公告)号：US11958299B2

公开(公告)日：2024-04-16

申请号：US17318187

申请日：2021-05-12

Applicant: SEIKO EPSON CORPORATION

Inventor： Hiroyuki Kuramoto

IPC: B41J2/21 ,  B41J3/46 ,  G06F3/12

CPC classification number: B41J2/2142 ,  B41J3/46 ,  G06F3/1234

Abstract: A printing apparatus that performs printing on a medium while being manually moved relative to the medium, the printing apparatus including a first discharger including a first nozzle row that discharges a first liquid, a second discharger including a second nozzle row that discharges a second liquid, a mode determination section that evaluates whether the printing apparatus operates in a first mode in which the printing apparatus is movable in an oblique direction with respect to a first direction or a second mode in which the printing apparatus is not movable in an oblique direction with respect to the first direction, and a first control section that restrains printing using both the first and second dischargers when the mode determination section determines that the printing apparatus operates in a first mode in which the printing apparatus operates in the first mode.

公开(公告)号：US20240100856A1

公开(公告)日：2024-03-28

申请号：US18469481

申请日：2023-09-18

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hiroomi Nakatsuji ,  Jun Nakano ,  Naoko Kawashima ,  Masato Usui

IPC: B41J2/21 ,  B41J29/393

CPC classification number: B41J2/2142 ,  B41J2/2139 ,  B41J29/393 ,  B41J2029/3935

Abstract: An abnormal ejection detection portion detects an abnormal ejection nozzle in a print head based on a read test image read from a sheet with a test pattern formed thereon. When a plurality of abnormal ejection nozzles are detected and the plurality of abnormal ejection nozzles include two consecutive abnormal nozzles corresponding to two consecutive pixels in the read test image, a correction processing portion performs increase correction on an ink ejection amount of consecutive adjacent nozzles adjacent to the two consecutive abnormal nozzles and performs decrease correction on an ink ejection amount of secondary adjacent nozzles adjacent to the consecutive adjacent nozzles.

公开(公告)号：US20240066899A1

公开(公告)日：2024-02-29

申请号：US18455326

申请日：2023-08-24

Applicant: SEIKO EPSON CORPORATION

Inventor： Takuto TANAKA

IPC: B41J25/00 ,  B41J2/165 ,  B41J2/21 ,  B41J11/00 ,  B41J11/58 ,  B41J29/17

CPC classification number: B41J25/001 ,  B41J2/16505 ,  B41J2/2142 ,  B41J11/0045 ,  B41J11/58 ,  B41J29/17

Abstract: A recording device includes a recording unit, a transport belt configured to support the medium, and a moving mechanism configured to move at least one of the recording unit or the transport belt with respect to the other in a movement direction. The recording device includes a cleaning unit provided in a manner movable forward and backward with respect to a position between the recording unit and the transport belt in a first direction intersecting the movement direction. The cleaning unit is configured to, when the recording unit is located at a to-be-cleaned position, start moving from a non-cleaning region and move in a cleaning region in the first direction, thereby cleaning the ejecting unit. A restriction portion configured to restrict movement of the cleaning unit is located in the non-cleaning region to the cleaning region when the cleaning unit does not perform cleaning.

公开(公告)号：US20240034081A1

公开(公告)日：2024-02-01

申请号：US18360211

申请日：2023-07-27

Applicant: BROTHER KOGYO KABUSHIKI KAISHA

Inventor： Akira AKAZAWA ,  Susumu FUJIWARA ,  Takeshi SHIBATA ,  Yusuke KURITA ,  Takuo YABUUCHI

IPC: B41J29/393 ,  B41J2/21

CPC classification number: B41J29/393 ,  B41J2/2142 ,  B41J2029/3935 ,  B41J2202/21 ,  B41J2203/01

Abstract: There is provided a controller for an image forming system including a head in which a plurality of nozzles is formed. The controller includes: a first communication interface configured to communicate with a line sensor including imaging elements arranged at a predetermined interval and having an element-lacking-part at which an interval between two elements is larger than the predetermined interval; and a second communication interface. The controller is configured to: form a test pattern including patterns; obtain a test pattern data generated by imaging the test pattern with the line sensor; correct a position of the patterns on the test pattern data based on a position of the element-lacking-part; and detect a discharge-defect-nozzle based on the corrected test pattern data.

公开(公告)号：US11845268B2

公开(公告)日：2023-12-19

申请号：US17235124

申请日：2021-04-20

Applicant: CANON KABUSHIKI KAISHA

Inventor： Takeshi Murase ,  Yoshiaki Murayama ,  Satoshi Kitai ,  Masahiko Umezawa ,  Tomoki Kobayashi

IPC: B41J2/045 ,  B41J2/21 ,  B41J2/14

CPC classification number: B41J2/0451 ,  B41J2/0458 ,  B41J2/04561 ,  B41J2/04563 ,  B41J2/04565 ,  B41J2/04588 ,  B41J2/2142 ,  B41J2/04543 ,  B41J2/04551 ,  B41J2/04553 ,  B41J2/04591 ,  B41J2/14153 ,  B41J2002/14354

Abstract: A printing apparatus for printing using a printhead including a plurality of nozzles, each configured to discharge ink, and a plurality of sensors, corresponding to the plurality of nozzles, for detecting a discharge state of ink from the plurality of nozzles, judges a discharge state. The apparatus prints, based on print data, an image by driving the printhead under a first drive condition to discharge the ink from the printhead to a first area, discharges ink to a second area different from the first area by driving the printhead, based on inspection data, under a second drive condition different from the first drive condition, and judges a discharge state of each nozzle by monitoring an output from each sensor at a timing of driving the printhead under the second drive condition.

公开(公告)号：US20230286260A1

公开(公告)日：2023-09-14

申请号：US18321947

申请日：2023-05-23

Applicant: Electronics for Imaging, Inc.

Inventor： Steven A. Billow ,  Ghilad Dziesietnkk ,  John A. Weismantel ,  Darin Schick ,  Boris Libeman ,  Noam Robin ,  Hsinchia Chen

IPC: B41J2/045 ,  B41J2/21

CPC classification number: B41J2/04505 ,  B41J2/2142 ,  B41J2/2146 ,  B41J2/04586

Abstract: Disclosed is an industrial single-pass inkjet printer/press incorporating a line-scan camera. The line-scan camera enables system software to inspect every sheet for quality assurance purposes. These inspection results are tied back to a digital printer to take one or more of several possible actions. Actions include ensuring a particular number of acceptable prints are generated and sorted. Actions further include performing nozzle checks without pausing or interrupting production orders.

公开(公告)号：US11752775B2

公开(公告)日：2023-09-12

申请号：US16740687

申请日：2020-01-13

Applicant: HEIDELBERG DRUCKMASCHINEN AG

Inventor： Jan Krieger ,  Frank Schumann

IPC: B41J2/21 ,  B41J29/393

CPC classification number: B41J2/2142 ,  B41J2/2139 ,  B41J2/2146 ,  B41J29/393 ,  B41J2029/3935

Abstract: A method for determining print defects in a printing operation carried out on an inkjet printing machine for processing a print job includes using a camera system to record and digitize printed products generated during the printing operation, feeding the camera image having been thus generated to a detection algorithm on the computer, alerting a machine control unit when print defects are found, and ejecting the printed product through a waste ejector if necessary. The detection algorithm separates color separations of the camera images, detects the print defects in the color separations, links images of the individual color separations to form a candidate image, filters the candidate image, enters the remaining detected print defects into a list, and forwards the list to the machine control unit of the printing machine.

公开(公告)号：US20230264484A1

公开(公告)日：2023-08-24

申请号：US18112002

申请日：2023-02-21

Applicant: Roland DG Corporation

Inventor： Bandhit SUKSIRI ,  Masayoshi KIMURA ,  Shinya YAMAMOTO ,  Takashi ADACHI ,  Hirohito NIHASHI ,  Ryugo NIMURA

IPC: B41J2/21 ,  B41J29/393 ,  B41J2/165

CPC classification number: B41J2/2142 ,  B41J29/393 ,  B41J2/16579 ,  B41J2029/3935

Abstract: A test image printer of an inkjet printer causes a test image, including a mark with a predefined shape and usable to correct an image captured by an image capturing device, and a test pattern usable to inspect a plurality of nozzles, to be printed on a recording medium. An image capture controller controls the image capturing device to capture an image of the test image printed on the recording medium. A corrector compares the image of the mark captured by the image capturing device, to the predefined shape of the mark, to calculate a correction value, and corrects the image of the test pattern, captured by the image capturing device, based on the calculated correction value. An inspector inspects the plurality of nozzles based on the image of the test pattern corrected by the corrector.

公开(公告)号：US11691433B2

公开(公告)日：2023-07-04

申请号：US16640029

申请日：2018-09-05

Applicant: Arrayjet Limited

Inventor： Benjamin Mitchell ,  Joan Salvatella Serra ,  Marisa Chong-Kwan

IPC: B41J2/21 ,  B01J19/00 ,  G01N21/88 ,  G06T7/00 ,  G01N21/956 ,  B01L3/00

CPC classification number: B41J2/2142 ,  B01J19/0046 ,  B01L3/502715 ,  G01N21/8806 ,  G01N21/956 ,  G06T7/0002 ,  B01J2219/00378 ,  B01J2219/00693

Abstract: Method for manufacturing a microarray and verifying the quality of said microarray, wherein the method comprises: —providing at least one reagent, —loading said at least one reagent in a dispensing print head, in a predetermined arrangement, —moving the print head with respect to a substrate and dispensing said at least one reagent on the substrate, during a print pass, to obtain a microarray, —illuminating the substrate using illumination means and obtaining an image of the printed microarray on the substrate, using a camera, —processing the obtained image to verify the quality of the microarray, wherein the step of obtaining an image of the printed microarray comprises: —illuminating the substrate and obtaining an image of the microarray by means of illumination means and a camera which are connected to and move together with the print head with respect to the substrate, the illumination means and the camera being adapted to move behind the print head.