公开(公告)号：US20240393725A1

公开(公告)日：2024-11-28

申请号：US18667313

申请日：2024-05-17

Applicant: Yasunobu KIDOURA ,  Ryohsuke AKAISHI ,  Satoshi KUNO ,  Hirofumi HORITA ,  Naohiro YOSHIDA

Inventor： Yasunobu KIDOURA ,  Ryohsuke AKAISHI ,  Satoshi KUNO ,  Hirofumi HORITA ,  Naohiro YOSHIDA

IPC: G03G15/00

Abstract: An image forming system includes an image forming apparatus, a sheet laminator, a post-processing apparatus, and circuitry. The sheet laminator includes a heater. The sheet laminator applies heat and pressure on a two-ply sheet in which a sheet medium is inserted while conveying the two-ply sheet. The post-processing apparatus performs a task. The circuitry is to calculate a task time taken for the task performed by of the post-processing apparatus, and perform one of increasing a temperature of the heater of the sheet laminator while the post-processing apparatus performs the task or maintaining the temperature of the heater of the sheet laminator while the post-processing apparatus performs the task, based on the task time in a productivity mode.

公开(公告)号：US20230303352A1

公开(公告)日：2023-09-28

申请号：US18168684

申请日：2023-02-14

Applicant: Ryohsuke AKAISHI ,  Akira KUNIEDA ,  Yohsuke HARAGUCHI ,  Hirofumi HORITA ,  Satoshi KUNO ,  Koju KAWAKAMI ,  Yasunobu KIDOURA

Inventor： Ryohsuke AKAISHI ,  Akira KUNIEDA ,  Yohsuke HARAGUCHI ,  Hirofumi HORITA ,  Satoshi KUNO ,  Koju KAWAKAMI ,  Yasunobu KIDOURA

IPC: B65H7/20 ,  B65H7/06 ,  B32B37/00

CPC classification number: B65H7/20 ,  B32B37/0053 ,  B65H7/06 ,  B32B2037/0061 ,  B65H2301/4213

Abstract: A sheet processing apparatus including a sheet feeder, a sheet processing device, a sheet ejection device, a purge unit, a multifeed sensor, and circuitry. The sheet feeder feeds a sheet toward a sheet conveyance passage. The sheet processing device performs a predetermined operation on the sheet. The sheet ejection device stacks the sheet when the predetermined operation has been performed. The purge unit stacks the sheet when the predetermined operation has not been performed. The multifeed sensor detects whether sheets are multifed and a number of multifed sheets. The circuitry counts a number of sheets, determines that the sheets stacked in the purge unit is full when a number of counted sheets reaches a predetermined number of sheets, and conveys the multifed sheets toward the purge unit and adds the number of counted sheets according to the number of multifed sheets, in response to detection of the multifed sheets.

公开(公告)号：US20230264909A1

公开(公告)日：2023-08-24

申请号：US18170350

申请日：2023-02-16

Applicant: Koju KAWAKAMI ,  Akira Kunieda ,  Yohsuke Haraguchi ,  Hirofumi Horita ,  Saloshi Kuno ,  Yasunobu Kidoura ,  Ryohsuke Akaishi

Inventor： Koju KAWAKAMI ,  Akira Kunieda ,  Yohsuke Haraguchi ,  Hirofumi Horita ,  Saloshi Kuno ,  Yasunobu Kidoura ,  Ryohsuke Akaishi

IPC: B65H9/00 ,  B32B37/00 ,  B32B38/00 ,  B32B38/18 ,  B32B37/18

CPC classification number: B65H9/004 ,  B32B37/0053 ,  B32B38/145 ,  B32B38/1808 ,  B32B37/185 ,  B65H2404/14 ,  B65H2801/27 ,  B65H2801/06 ,  B32B27/36

Abstract: A sheet separation device that conveys a two-ply sheet in a state where the one side joined is located on an upstream side or a downstream side of the two-ply sheet in a conveyance direction, separates the two-ply sheet into the two sheets, and inserts an inner sheet from a non-joined side opposite the joined side in the sheet conveyance direction so that the inner sheet is sandwiched between the two sheets overlaid with each other includes a conveying roller pair including a pair of rollers and circuitry. The conveying roller pair conveys the two-ply sheet and holds a joined portion of in the two-ply sheet at which the two sheets are joined, at a nip portion of the conveying roller pair when the inner sheet is inserted into the two-ply sheet. The circuitry contacts the inner sheet against the joined portion of the two-ply sheet to perform skew correction.

公开(公告)号：US20230244164A1

公开(公告)日：2023-08-03

申请号：US18157424

申请日：2023-01-20

Applicant: Yasunobu KIDOURA ,  Akira Kunieda ,  Yohsuke Haraguchi ,  Hirofumi Horita ,  Satoshi Kuno ,  Koju Kwakami ,  Ryohsuke Akaishi

Inventor： Yasunobu KIDOURA ,  Akira Kunieda ,  Yohsuke Haraguchi ,  Hirofumi Horita ,  Satoshi Kuno ,  Koju Kwakami ,  Ryohsuke Akaishi

IPC: G03G15/20 ,  G03G15/00

CPC classification number: G03G15/205 ,  G03G15/5004

Abstract: An image forming system includes an image forming apparatus and a sheet laminator. The image forming apparatus forms an image on a sheet being conveyed as an inner sheet. The sheet laminator performs a sheet laminating operation on a two-ply sheet in which the sheet conveyed from the image forming apparatus is inserted between two sheets of the two-ply sheet. The sheet laminator includes a heater and circuitry. The heater heats the two-ply sheet during the sheet laminating operation. The circuitry is to execute a control mode when a specific abnormal event occurs among a plurality of abnormal events that occurs in the image forming apparatus, where the control mode maintains heating by the heater of the sheet laminator for a predetermined time and interrupt the heating by the heater when an abnormal event other than the specific abnormal event occurs.

公开(公告)号：US20240399732A1

公开(公告)日：2024-12-05

申请号：US18731872

申请日：2024-06-03

Applicant: Naohiro YOSHIDA ,  Ryohsuke AKAISHI ,  Yasunobu KIDOURA ,  Hirofumi HORITA ,  Satoshi KUNO

Inventor： Naohiro YOSHIDA ,  Ryohsuke AKAISHI ,  Yasunobu KIDOURA ,  Hirofumi HORITA ,  Satoshi KUNO

IPC: B32B38/18 ,  B32B37/10 ,  B32B37/18 ,  B32B38/00 ,  B32B41/00

Abstract: A sheet laminator includes a sheet ejection roller pair, a sheet ejection tray, a presser, and circuitry. The sheet ejection tray has a receiving face to receive the two-ply sheet standing in the sheet ejection tray, and a stacking face facing the receiving face and inclined with respect to the vertical direction. The presser has a leading end to move the two-ply sheet on the receiving face toward the stacking face, and press the two-ply sheet onto the stacking face. The circuitry is to perform a first operation to move the leading end of the presser from the receiving face to an intermediate position beyond the extension line and before the stacking face, perform a second operation to move the leading end of the presser from the intermediate position to the stacking face, and press the two-ply sheet against the stacking face with the leading end of the presser.

公开(公告)号：US20240399729A1

公开(公告)日：2024-12-05

申请号：US18676710

申请日：2024-05-29

Applicant: Satoshi KUNO ,  Ryohsuke AKAISHI ,  Yasunobu KIDOURA ,  Hirofumi HORITA ,  Naohiro YOSHIDA

Inventor： Satoshi KUNO ,  Ryohsuke AKAISHI ,  Yasunobu KIDOURA ,  Hirofumi HORITA ,  Naohiro YOSHIDA

IPC: B32B37/00 ,  B32B37/06 ,  B65H5/06 ,  B65H29/64 ,  B65H39/02

Abstract: A sheet processing apparatus includes a conveyance passage, a sheet separation device, and a conveyance roller pair. The conveyance passage conveys a two-ply sheet having two sheets overlapped and bonded together in a conveyance direction and includes a first branched conveyance passage branched in a first direction, and a second branched conveyance passage branched in a second direction different from the first direction. The sheet separation device separates a non-bonding portion of the two-ply sheet, conveys a first sheet of the two sheets separated from each other to the first branched conveyance passage, and conveys convey a second sheet of the two sheets separated from each other to the second branched conveyance passage. The conveyance roller pair has two rollers that are separable from and contactable with each other, and are disposed on at least one of the first branched conveyance passage or the second branched conveyance passage.

公开(公告)号：US20230264491A1

公开(公告)日：2023-08-24

申请号：US18164196

申请日：2023-02-03

Applicant: Hirofumi HORITA ,  Akira Kunieda ,  Yohsuke Haraguchi ,  Satoshi Kuno ,  Koju Kawakami ,  Yasuobu Kidoura ,  Ryohsuke Akaishi

Inventor： Hirofumi HORITA ,  Akira Kunieda ,  Yohsuke Haraguchi ,  Satoshi Kuno ,  Koju Kawakami ,  Yasuobu Kidoura ,  Ryohsuke Akaishi

IPC: B41J11/00 ,  B65H1/14 ,  B65H1/18 ,  B65H3/06 ,  B32B37/00 ,  B32B39/00

CPC classification number: B41J11/007 ,  B32B37/0046 ,  B32B39/00 ,  B65H1/14 ,  B65H1/18 ,  B65H3/06 ,  B65H2801/03

Abstract: A sheet feeder includes a sheet stacker, a sheet feed roller, a separation roller pair, and a lifter. Sheets are conveyed and stacked on the sheet stacker. The sheet feed roller feeds the sheets. The separation roller pair separates the sheets fed by the sheet feed roller one by one. The lifter lifts and lowers the sheet stacker depending on a stack amount of the sheets. The sheet stacker includes a first stacking face, a second stacking face, and a bent portion integrally connecting the stacking faces such that the stacking faces form a specified angle. The sheet stacker stacks the sheets such that a center of gravity of the sheets is positioned above the first stacking face and integrally displaces the stacking faces when the lifter operates.

公开(公告)号：US20230264461A1

公开(公告)日：2023-08-24

申请号：US18155270

申请日：2023-01-17

Applicant: Satoshi KUNO ,  Akira KUNIEDA ,  Yohsuke HARAGUCHI ,  Hirofumi HORITA ,  Koju KAWAKAMI ,  Yasunobu KIDOURA ,  Ryohsuke AKAISHI

Inventor： Satoshi KUNO ,  Akira KUNIEDA ,  Yohsuke HARAGUCHI ,  Hirofumi HORITA ,  Koju KAWAKAMI ,  Yasunobu KIDOURA ,  Ryohsuke AKAISHI

IPC: B32B37/00 ,  B65H1/04 ,  B65H31/24

CPC classification number: B32B37/0053 ,  B65H1/04 ,  B65H31/24 ,  B32B2037/0061 ,  B32B2037/0069 ,  B65H2801/27

Abstract: A sheet processing device includes a sheet storage and a sheet displacer. The sheet storage includes a first storage portion that includes a first wall that is one side wall of the sheet storage and a second wall that is part of another side wall of the sheet storage and a second storage portion that includes a third wall continuous to the first wall and the second wall. The sheet displacer displaces a preceding sheet stored in the sheet storage and contacts an upper end of the preceding sheet to displace the preceding sheet such that the upper end of the preceding sheet moves toward the third wall. The second wall and the third wall are coupled via a bent portion that bends in a manner such that a storage space of the second storage portion is greater than a storage space of the first storage portion.

公开(公告)号：US11360421B2

公开(公告)日：2022-06-14

申请号：US16823463

申请日：2020-03-19

Applicant: Masakazu Fujita ,  Yasushi Tsuruoka ,  Takamasa Matsumoto ,  Hiroaki Utagawa ,  Ryohsuke Akaishi ,  Hisayoshi Sugawara

Inventor： Masakazu Fujita ,  Yasushi Tsuruoka ,  Takamasa Matsumoto ,  Hiroaki Utagawa ,  Ryohsuke Akaishi ,  Hisayoshi Sugawara

IPC: B65H31/00 ,  G03G15/00 ,  B65H31/30

Abstract: A sheet sorting device includes a plurality of trays, a tray shifter, a tray stop position detector, and circuitry. The plurality of trays is disposed in multiple stages in a vertical direction and configured to stack a sheet. The tray shifter is configured to move the plurality of trays separately in a tray shift direction. The tray stop position detector is configured to detect stop positions of the plurality of trays separately. The circuitry is configured to cause the tray shifter to move the plurality of trays to home positions in an initial operation, at least one tray having a home position opposite to a home position of another tray in the tray shift direction. The circuitry is configured to, while moving the plurality of trays at a same time in the initial operation, cause the tray shifter to move the trays in directions opposite to each other.

公开(公告)号：US20240359452A1

公开(公告)日：2024-10-31

申请号：US18645664

申请日：2024-04-25

Applicant: Ryohsuke AKAISHI ,  Yasunobu KIDOURA ,  Hirofumi HORITA ,  Satoshi KUNO ,  Naohiro YOSHIDA

Inventor： Ryohsuke AKAISHI ,  Yasunobu KIDOURA ,  Hirofumi HORITA ,  Satoshi KUNO ,  Naohiro YOSHIDA

IPC: B32B41/02 ,  B32B37/10 ,  B32B37/18 ,  B32B38/00

CPC classification number: B32B41/02 ,  B32B37/1054 ,  B32B37/185 ,  B32B38/145 ,  B32B2309/02

Abstract: A sheet laminator including a thermal pressure roller, a power cutoff device, a mover, a power line, and circuitry. The thermal pressure roller pair includes first and second rollers, and first and second heaters, to form a nip region to press and convey a two-ply sheet. The power cutoff device detects a change in temperature of at least one of the first or second roller, and cuts off a power to at least one of the first or second heater. The mover relatively moves the second roller away from the first roller. The power line couples the power cutoff device to the mover. The circuitry is to cause the power cutoff device to cut off the power line, and cause the mover to relatively move the second roller away from the first roller, in response to the power cutoff to at least one of the first or second heater.