Inkjet recording apparatus
    3.
    发明授权

    公开(公告)号:US10807379B2

    公开(公告)日:2020-10-20

    申请号:US16589439

    申请日:2019-10-01

    Abstract: An inkjet recording apparatus includes three or more recording heads. The recording heads contain different inks and eject the different inks sequentially on a recording medium. The different inks each contain a pigment. Of the different inks, an ink to be ejected first has the lowest pigment content ratio. Of the different inks, an ink to be ejected third and an ink to be subsequently ejected each have a pigment content ratio equal to or higher than that of the pigment contained in a corresponding one of inks to be precedently ejected. Of the different inks, an ink to be ejected second and an ink to be subsequently ejected each have a lower viscosity at 25° C. than a corresponding one of inks to be precedently ejected.

    Inkjet recording apparatus
    4.
    发明授权

    公开(公告)号:US11072187B2

    公开(公告)日:2021-07-27

    申请号:US16589749

    申请日:2019-10-01

    Abstract: An inkjet recording apparatus includes three or more recording heads. The recording heads contain different inks and eject the different inks sequentially on a recording medium. The different inks each contain a pigment and a polyhydric alcohol monobutyl ether. Of the different inks, an ink to be ejected first has the lowest pigment content ratio. Of the different inks, an ink to be ejected third and an ink to be subsequently ejected each have a pigment content ratio equal to or higher than that of a corresponding one of inks to be precedently ejected. Of the different inks, an ink to be ejected second and an ink to be subsequently ejected each have a polyhydric alcohol monobutyl ether content ratio higher than that of a corresponding one of inks to be precedently ejected.

    Sheet folding device, sheet post-processing apparatus including sheet folding device, and image forming system

    公开(公告)号:US12240727B2

    公开(公告)日:2025-03-04

    申请号:US18336620

    申请日:2023-06-16

    Inventor: Yusuke Takano

    Abstract: A sheet folding device includes a sheet loading unit, a folding processing unit, and an ejection roller. The folding processing unit includes a folding roller pair. A sheet alignment part and a sheet moving part are provided. A sheet loading tray includes an upstream-side loading part and a downstream-side loading part. The sheet alignment part includes an upstream-side alignment part and a downstream-side alignment part. The downstream-side alignment part includes a side plate, a fixed guide plate, and a movable guide plate supported on the side plate in such a manner as to be swingable between a retreat position and a regulation position.

    Sheet discharge tray and image forming apparatus

    公开(公告)号:US11203502B2

    公开(公告)日:2021-12-21

    申请号:US16366615

    申请日:2019-03-27

    Inventor: Yusuke Takano

    Abstract: A discharge tray has a frame, a first tray, a second tray, and an angle switching member. The first tray has a sheet-discharge-direction downstream side inclined upward. The second tray is movable, along a pair of wall portions on the frame, to a first position where at least part of the second tray overlaps the first tray, a second position to which the second tray extends toward the sheet-discharge-direction downstream side, and a third position to the sheet-discharge-direction downstream side of the second position where the second tray is rotatable. As the second tray moves, the angle switching member moves. At the third position, the angle switching member rotates through a predetermined angle and is held by the wall portions. The angle switching member supports the second tray at a second inclination angle smaller than a first inclination angle when the second tray is at the second position.

    Image forming apparatus
    7.
    发明授权

    公开(公告)号:US11738963B2

    公开(公告)日:2023-08-29

    申请号:US17274217

    申请日:2019-07-09

    Inventor: Yusuke Takano

    CPC classification number: B65H31/26 B65H29/245 B65H31/38 B65H2404/5211

    Abstract: An image forming apparatus (1) includes a discharge port (25), a sheet stacking plate (41), a pair of cursors (43), a cursor driver (95), a pair of blowers (83) and a controller (37). Through the discharge port (25), a sheet formed an image is discharged. On the sheet stacking plate (41), the sheet discharged through the discharge port (25) is stacked. The pair of cursors (43) is supported on the sheet stacking plate (41) in a slidable manner in width directions perpendicular to a discharge direction of the sheet and comes into contact with both side edges of the sheet. The cursor driver (95) drives the pair of cursors (43). The pair of blowers (83) is provided in the pair of cursors (43) so as to blow air to both corners on an upstream side in the discharge direction of the sheet which is discharged through the discharge port (25), from above. The controller (37) controls the cursor driver (95) and the pair of blowers (83).

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