Patents Assigned to Roland DG Corporation
-
Patent number: 11926147Abstract: In a light radiation device including an upstream radiation portion, a middle radiation portion and a downstream radiation portion, the upstream radiation portion overlaps a nozzle array in a transportation direction. A controller includes a path controller to control a path operation of ejecting ink from the nozzle array onto a medium while moving a recording head and the light radiation device in a scanning direction, a transportation controller to control a transportation operation of, after the path operation, transporting the medium downstream in the transportation direction by a distance shorter than a length in the transportation direction of the nozzle array, and a first light radiation controller to control the light radiation device, during the path operation by the path controller, to turn on the upstream radiation portion and the downstream radiation portion and to turn off the middle radiation portion.Type: GrantFiled: March 10, 2022Date of Patent: March 12, 2024Assignee: ROLAND DG CORPORATIONInventors: Masanori Ishihara, Yuta Fujisawa, Takeshi Yagi, Yuta Tatebayashi
-
Patent number: 11865846Abstract: An inkjet printer includes a support table supporting a waste liquid tank and being displaceable in accordance with a weight of the waste liquid tank, a first sensor to detect that the support table has reached a first position, a second sensor to detect that the support table has reached a second position, a first determinator to determine that the waste liquid tank is in a near-end state when the support table is detected by the first sensor to have reached the first position, and a notifier to notify a user of the near-end state when the first determinator determines that the waste liquid tank is in the near-end state.Type: GrantFiled: February 28, 2022Date of Patent: January 9, 2024Assignee: ROLAND DG CORPORATIONInventors: Akihiro Suzuki, Hirokazu Kakei
-
Patent number: 11840065Abstract: A printer includes a platen on which a recording medium is placed, an ink head including a nozzle that discharges ink onto the recording medium placed on the platen and that moves in a main scanning direction, an upstream guide located on an upstream side of the platen in a secondary scanning direction and that guides the recording medium, the upstream guide including an upper surface tilted obliquely downward from a downstream side to the upstream side in the secondary scanning direction, and grit rollers provided in the platen and that move the recording medium in the secondary scanning direction. The upstream guide is recessed from the upper surface of the upstream guide, and includes a concave recess that indicates a position of each of the grit rollers in the main scanning direction so that a position of the grit roller is easily acknowledged when the recording medium is placed on the platen.Type: GrantFiled: January 24, 2020Date of Patent: December 12, 2023Assignee: ROLAND DG CORPORATIONInventor: Chihiro Sakai
-
Patent number: 11820145Abstract: A printer includes an ink head including a nozzle, a damper connected with the ink head, a pressure sensor to detect a damper pressure in the damper, a cap attachable to the ink head so as to cover the nozzle, an upward/downward moving mechanism to move the cap upward and downward with respect to the ink head, a suction pump connected with the cap, and a controller. The controller is configured or programmed to include a suction controller to execute a suction process to drive the suction pump in a state where the cap is attached to the ink head, a pressure acquisition controller to acquire the damper pressure from the pressure sensor during the suction process, and an upward/downward movement controller to control the cap to move upward toward the ink head when a change amount of the damper pressure is no larger than a reference change amount.Type: GrantFiled: July 1, 2022Date of Patent: November 21, 2023Assignee: ROLAND DG CORPORATIONInventor: Teppei Sawada
-
Patent number: 11779429Abstract: A medical instrument display includes an image storage that stores a plurality of image data of a medical instrument, a data analyzer that searches a plurality of image data stored in the image storage on a certain condition, and a display controller that causes a display to display a first medical instrument image that has been selected from thumbnail images, the thumbnail images being based on a plurality of the image data obtained by the search, and a second medical instrument image in good order, the second medical instrument image being different from the first medical instrument image.Type: GrantFiled: October 3, 2022Date of Patent: October 10, 2023Assignees: ROLAND DG CORPORATION, HAMAMATSU UNIVERSITY SCHOOL OF MEDICINEInventors: Masaki Hanajima, Takaaki Kokubo, Takeshi Tsuji, Akinori Sugaya, Naomi Ishino
-
Patent number: 11772393Abstract: A printer includes a driving roller to move a medium supported on a support table in a predetermined transportation direction, and pinch roller assemblies each including a pinch roller, a support to support the pinch roller to allow the pinch roller to contact, or to be spaced from, the driving roller, and an actuator provided upstream in the transportation direction with respect to the pinch roller. The actuator includes a contact portion contactable with the support, and an operation portion to press the contact portion to the support to move the pinch roller in a direction away from the driving roller.Type: GrantFiled: December 28, 2021Date of Patent: October 3, 2023Assignee: ROLAND DG CORPORATIONInventor: Ryosuke Nonaka
-
Patent number: 11738573Abstract: A printer includes a platen to support a medium, a conveyor to convey the medium supported by the platen from an upstream side toward a downstream side in conveyance directions, a tension bar, and a floating bar. The tension bar is downstream of the platen in the conveyance directions and positioned such that a lower surface of the medium conveyed from the platen to the downstream side in the conveyance directions contacts the tension bar. The floating bar is downstream of the platen in the conveyance directions and upstream of the tension bar in the conveyance directions and positioned such that an upper surface of the medium located between the platen and the tension bar contacts the floating bar, and has a center axis freely movable by a predetermined degree.Type: GrantFiled: October 8, 2021Date of Patent: August 29, 2023Assignee: ROLAND DG CORPORATIONInventor: Kikuo Matsuba
-
Patent number: 11731427Abstract: A printer includes an ink head including a nozzle surface including nozzles, a cap including an end portion contactable with the nozzle surface, a suction device, a memory, and a controller. The memory stores a suction position, a free suction position, and a minute open position located between the suction position and the free suction position. The controller performs a suction process in which the cap is located at the suction position and ink is sucked from the nozzles, and a minute open position process in which the cap is moved toward a minute open position and movement of the cap is stopped with the cap located at a minute open position, after the suction process.Type: GrantFiled: March 25, 2020Date of Patent: August 22, 2023Assignee: ROLAND DG CORPORATIONInventors: Kazuya Morizono, Teppei Sawada, Akifumi Arai
-
Patent number: 11679605Abstract: A medium transportation device includes a support table to support a medium, and a conveyor to transport the medium supported by the support table in a transportation direction. The conveyor includes a driving roller, a rail, and a pinch roller assembly. The driving roller is provided on the support table, extends in a perpendicular direction that is perpendicular to the transportation direction, and is rotatable in the transportation direction. The rail faces the support table and extends in the perpendicular direction. The pinch roller assembly is in engagement with the rail so as to be movable in the perpendicular direction along the rail. The rail includes shorter rails arranged along a line extending in the perpendicular direction.Type: GrantFiled: December 28, 2021Date of Patent: June 20, 2023Assignee: ROLAND DG CORPORATIONInventor: Ryosuke Nonaka
-
Patent number: 11660879Abstract: A printer includes a first guide disposed downstream of a platen in a sub-scanning direction to guide movement of a recording medium, a second guide disposed below the first guide and downstream of the first guide in the sub-scanning direction to guide movement of the recording medium, and a dryer facing the first guide and the second guide to send air toward the recording medium. The dryer includes a body case including an outlet port that is open toward the second guide, a fan to send air toward the recording medium through the outlet port, and a heater to heat air sent by the fan. The first guide has a thermal conductivity higher than a thermal conductivity of the second guide.Type: GrantFiled: February 22, 2022Date of Patent: May 30, 2023Assignee: ROLAND DG CORPORATIONInventors: Chihiro Sakai, Akihiro Suzuki
-
Patent number: 11590776Abstract: A printing jig includes bases to be fitted to a printing apparatus, a first holder fittable to each of the bases, and a second holder fittable to each of the bases. The first holder is able to hold one or more first substrates. The second holder is able to hold one or more second substrates different in size from the first substrate or substrates. The first holder includes a first fitting portion to be fitted to each of the bases. The second holder includes a second fitting portion to be fitted to each of the bases. Each of the bases is structured such that the first fitting portion and the second fitting portion are both fittable thereto.Type: GrantFiled: July 14, 2021Date of Patent: February 28, 2023Assignee: ROLAND DG CORPORATIONInventor: Naoki Ueda
-
Patent number: 11511556Abstract: A printer includes a supporting table to support a recording medium, a recording head located above the supporting table to eject ink toward the supporting table, a first contact detector located above the supporting table and lower than the recording head, an oscillator to vibrate the first contact detector, and a vibration detector to detect vibration of the first contact detector and transmit a signal corresponding to the detected vibration. The printer stores a threshold related to the vibration of the first contact detector and determines that an object has come into contact with the first contact detector when an amount of the vibration detected by the vibration detector is equal to the threshold or less.Type: GrantFiled: August 3, 2021Date of Patent: November 29, 2022Assignee: ROLAND DG CORPORATIONInventors: Akihiro Suzuki, Atsushi Oguri, Teruma Otsuka
-
Patent number: 11511541Abstract: An inkjet printer cleaning system includes an inkjet printer and a cleaning unit. The inkjet printer includes an ink head and a table that faces the ink head and on which a substrate is to be placed. The cleaning unit includes an attachment attachable to and removable from the table, and a cleaner that faces the ink head upon attaching of the attachment to the table.Type: GrantFiled: July 23, 2019Date of Patent: November 29, 2022Assignee: ROLAND DG CORPORATIONInventors: Bunji Shinomiya, Shunsuke Kawai, Takayoshi Oguri
-
Patent number: 11504981Abstract: A printer includes: a platen configured to allow a rolled first recording medium and a sheet-like second recording medium to be placed thereon; and a guide table detachably provided on a base member and configured to guide movement of the second recording medium. The platen includes a first platen on which the first recording medium and the second recording medium are placed, and a second platen disposed ahead of the first platen, including an upper surface tilted obliquely downward from the rear toward the front, and configured to guide movement of the first recording medium. The guide table includes a placement portion including a flat upper surface which is located below the first platen and above a portion of the second platen and on which the second recording medium is placed.Type: GrantFiled: June 7, 2021Date of Patent: November 22, 2022Assignee: Roland DG CorporationInventors: Misaki Konishi, Tsutomu Takenouchi, Tetsuya Okuda, Takeru Muranaka
-
Patent number: 11465421Abstract: An inkjet printer includes a first light applicator disposed in a second scanning direction relative to a recording head. The first light applicator includes a first upstream light source group at a location corresponding to a location of the recording head in a movement direction of a recording medium, and a first downstream light source group on a downstream side in the movement direction of the recording medium relative to the recording head. The inkjet printer turns off the first upstream light source group and turns on the first downstream light source group during movement of a carriage in a first scanning direction and discharge of first ink from the recording head, and turns on the first upstream light source group and the first downstream light source group during movement of the carriage in the second scanning direction after discharge of the first ink.Type: GrantFiled: June 17, 2021Date of Patent: October 11, 2022Assignee: ROLAND DG CORPORATIONInventors: Masanori Ishihara, Yuta Fujisawa
-
Patent number: 11192376Abstract: A wiping assembly includes a wiper that wipes a liquid ejection head, a wiper cleaner, and a mover that moves the wiper relative to the wiper cleaner. The wiper cleaner includes a first member, a second member, an absorbent, and a presser. An opening is located in the first member. The second member includes a projecting portion opposed to the opening. The absorbent has a plate shape and is disposed between the first member and the second member. The presser presses the second member toward the first member. The projecting portion presses the absorbent toward the opening. A portion of the absorbent is deformed to form a protruding portion that protrudes in a projection direction of the projecting portion from the opening by pressing by the projecting portion. The mover moves the wiper such that the wiper contacts the protruding portion of the absorbent.Type: GrantFiled: November 1, 2019Date of Patent: December 7, 2021Assignee: ROLAND DG CORPORATIONInventor: Yuichi Sugiyama
-
Patent number: 11163171Abstract: A pointer includes a case housing an LED device and including a light emission hole through which light from the device is emitted to an external space, a first plate between the device and the light emission hole and including a first light passage hole that allows passage of the light from the device, and a second plate between the first plate and the light emission hole and including a second light passage hole that allows passage of the light having passed through the first light passage hole. The light passage holes and the light emission hole are located on a central axis of the device. The device and the first and second plates are disposed such that H/2<S<H, where H denotes a distance between the device and the first plate, and S denotes a distance between the first and second plates.Type: GrantFiled: December 19, 2019Date of Patent: November 2, 2021Assignee: ROLAND DG CORPORATIONInventors: Hironobu Suzuki, Masanori Ishihara
-
Patent number: 11141981Abstract: A waste fluid quantity measuring device can comprise a waste fluid tank for recovering a waste fluid, a placement platform on which the total mass of the waste fluid tank acts, a motive force portion for moving at least a portion of the placement platform from a first position to a second position, with a constant force. A sensor can measure a position of the placement platform and a measuring portion can move the placement platform and measure a movement time of the placement platform to the second position, based on a measurement result by the sensor. An evaluating portion can evaluate a state of storage of waste fluid of the waste fluid tank based on the movement time measured by the measuring portion and a correspondence of the movement time and the quantity of waste fluid within the waste fluid tank.Type: GrantFiled: May 8, 2020Date of Patent: October 12, 2021Assignee: Roland DG CorporationInventor: Hironobu Suzuki
-
Patent number: 11142005Abstract: A printer can comprise a supporting wall that extends in a primary scanning direction, a table that is positioned lower than the supporting wall and that is structured so as to be able to move in a secondary scanning direction, a guide rail equipped on the supporting wall that extends in the primary scanning direction, a head carriage that is provided slidably on the guide rail and that can move in the primary scanning direction, an ink head mounted on the head carriage, and a partitioning wall that is positioned lower than the supporting wall and to a side of the table in the primary scanning direction and that extends in the secondary scanning direction and the vertical direction. When the table is positioned at the maximally downstream position along the secondary scanning direction, the upstream end portion of the table is positioned further downstream of the supporting wall and further upstream than the downstream end portion of the partitioning wall.Type: GrantFiled: June 11, 2020Date of Patent: October 12, 2021Assignee: ROLAND DG CORPORATIONInventors: Ryosuke Kobayashi, Masanori Ishihara, Akihiro Suzuki
-
Patent number: D1020871Type: GrantFiled: January 21, 2021Date of Patent: April 2, 2024Assignee: ROLAND DG CORPORATIONInventor: Osamu Takenaka