Image forming apparatus
    1.
    发明授权

    公开(公告)号:US11509782B2

    公开(公告)日:2022-11-22

    申请号:US17587388

    申请日:2022-01-28

    发明人: Haruhiko Omata

    IPC分类号: G06F3/12 H04N1/00

    摘要: An image forming apparatus includes an image forming unit, an intermediate transfer member, a transfer member, a power source, a fixing unit, a photo sensor photosensor, and a control unit configured to perform a mode to output a test chart which is formed by transferring a plurality of test toner images from the intermediate transfer member onto a plurality of sheets of the recording material, the test chart being used to adjust the transfer voltage applied to the transfer member. The control unit is configured to adjust the transfer voltage based on a detection result of the photo sensor photosensor detecting the plurality of test toner images recovered fixed on the recording material. In a case where a jam occurred during execution of the mode, the control unit is configured to resume the mode after the jam has been recovered.

    Image forming apparatus using test chart for adjusting transfer voltage

    公开(公告)号:US10585376B2

    公开(公告)日:2020-03-10

    申请号:US16148606

    申请日:2018-10-01

    IPC分类号: G03G15/16 G03G15/00 G03G15/23

    摘要: An image forming apparatus includes a controller configured to control a first and a second voltage applied to a transfer device when transferring an image to a first and a second side of a recording material, respectively. The controller controls a mode that outputs a test chart on which at least one of a plurality of first test images for adjusting the first voltage and a plurality of second test images for adjusting the second voltage is formed. In a case of forming the second test images on a second side of the test chart, and before forming the second test images, the controller forms a plurality of predetermined toner images under a same image forming condition on a first side of the test chart so that the predetermined toner images are formed on a plurality of predetermined areas overlapping each area where the second test images are to be formed.

    IMAGE FORMING APPARATUS
    3.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号:US20170003623A1

    公开(公告)日:2017-01-05

    申请号:US15194756

    申请日:2016-06-28

    IPC分类号: G03G15/16

    摘要: An image forming apparatus includes an intermediary transfer member, a toner image forming unit, a rotatable transfer member, a cleaning unit, a feeding unit, a feeding portion and an executing portion configured to execute a supplying operation for supplying a supplying toner image to a cleaning portion. The executing portion forms the supplying toner image at a position including a position different from a position where an adjusting toner image for adjusting an image forming condition is formed, with respect to a widthwise direction crossing a movement direction of an intermediary transfer member provided in contact with the rotatable transfer member. The executing portion performs the supplying operation at least one time in a double-sided image forming job and does not perform the supplying operation in a single-sided image forming job.

    摘要翻译: 图像形成装置包括中间转印构件,调色剂图像形成单元,可旋转转印构件,清洁单元,馈送单元,馈送部分和执行部分,被配置为执行用于将供应调色剂图像供应到 清洁部分。 所述执行部分形成在包括与形成有用于调节图像形成条件的调节调色剂图像的位置不同的位置处的供应调色剂图像相对于与设置在接触中的中间转印部件的移动方向交叉的宽度方向 与可旋转传递构件。 执行部在至少一次双面图像形成作业中进行供给动作,在单面图像形成作业中不进行供给动作。

    Image forming apparatus
    4.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号:US09239551B2

    公开(公告)日:2016-01-19

    申请号:US14672469

    申请日:2015-03-30

    发明人: Haruhiko Omata

    IPC分类号: G03G15/16

    摘要: A conveying belt is disposed so as to guide a recording medium on a side opposite to an image carrying belt across an extension line of a stretch surface formed by a transfer nip and a pressure member. Thus, the recording medium delivered from the transfer nip is guided on the side opposite to the image carrying belt across the extension line of the stretch surface. Therefore, even in a case of guiding a recording medium whose bending rigidity is high in particular, it is possible to suppress a rear end of the recording medium to move in a direction of separating from the image carrying belt at upstream of the transfer nip.

    摘要翻译: 输送带设置成在与转印夹持部和压力部件形成的拉伸表面的延伸线上的图像承载带相反的一侧引导记录介质。 因此,从转印辊隙传送的记录介质在与图像承载带相反的一侧被引导穿过拉伸表面的延伸线。 因此,即使在特别是弯曲刚性高的记录介质的引导的情况下,也可以抑制记录介质的后端在转印辊隙的上游沿与图像承载带分离的方向移动。

    IMAGE FORMING APPARATUS
    5.
    发明申请

    公开(公告)号:US20220146968A1

    公开(公告)日:2022-05-12

    申请号:US17582772

    申请日:2022-01-24

    发明人: Haruhiko Omata

    IPC分类号: G03G15/16

    摘要: An image forming apparatus includes an image forming unit, an intermediate transfer member, a power source, and a control unit configured to perform a mode to output a test chart which is formed by transferring a plurality of test toner images from the intermediate transfer member to a plurality of sheets of the recording material. In a case where a jam occurred during execution of the mode, the control unit is configured to resume the mode after the jam has been recovered. In a case where the control unit resumes the mode after the jam has occurred during the execution of the mode, the control unit is configured to resume the mode from a first sheet of the plurality of sheets of the recording material regardless of a number of sheets of the recording material not discharged due to the jam.

    Image forming apparatus with mode for setting transfer voltage

    公开(公告)号:US11308369B2

    公开(公告)日:2022-04-19

    申请号:US16748411

    申请日:2020-01-21

    发明人: Haruhiko Omata

    IPC分类号: G06K15/02 G06K15/14

    摘要: An image forming apparatus includes an image bearing member; a transfer member configured to transfer a toner image carried on the image bearing member to a sheet by being applied with a voltage; a controller configured to execute a mode of outputting a test chart for setting a voltage to be applied to the transfer member during image formation, the mode being a mode of transferring a plurality of test images to the test chart by applying a plurality of different voltages to the transfer member; and an operation portion capable of setting a type of a sheet on which the mode is executed. The controller is configured to preset a voltage value for setting a voltage to be applied when the test images are transferred in execution of the mode based on a voltage value, which is set in the previous execution of the mode.

    Image forming apparatus
    7.
    发明授权

    公开(公告)号:US11249422B2

    公开(公告)日:2022-02-15

    申请号:US17218575

    申请日:2021-03-31

    发明人: Haruhiko Omata

    IPC分类号: G03G15/16 G03G15/00

    摘要: An image forming apparatus includes an image forming unit, an intermediate transfer member, a power source, and a control unit configured to perform a mode to output a test chart which is formed by transferring a plurality of test toner images from the intermediate transfer member to a plurality of sheets of the recording material. In a case where a jam occurred during execution of the mode, the control unit is configured to resume the mode after the jam has been recovered. In a case where the control unit resumes the mode after the jam has occurred during the execution of the mode, the control unit is configured to resume the mode from a first sheet of the plurality of sheets of the recording material regardless of a number of sheets of the recording material not discharged due to the jam.

    Image forming apparatus
    8.
    发明授权

    公开(公告)号:US11195068B2

    公开(公告)日:2021-12-07

    申请号:US16748428

    申请日:2020-01-21

    发明人: Haruhiko Omata

    IPC分类号: G06K15/02 G06K15/14

    摘要: An image forming apparatus includes an image bearing member; a transfer member; and a controller configured to execute a plurality of modes of outputting a test chart, the modes involving transferring a plurality of test images to the test chart by applying a plurality of different voltages to the transfer member. The modes include a first mode and a second mode, the first mode being a mode in which a number of voltage levels to be applied to the transfer member when the plurality of test images are transferred to the test chart is a first predetermined number, and the second mode being a mode in which the number of voltage levels to be applied to the transfer member when the plurality of test images are transferred to the test chart is a second predetermined number which is greater than the first predetermined number.

    Image forming apparatus having transfer belt rollers of specific shapes

    公开(公告)号:US09658577B2

    公开(公告)日:2017-05-23

    申请号:US14676035

    申请日:2015-04-01

    IPC分类号: G03G15/16

    摘要: An image forming apparatus includes: an image bearing member; a toner image forming unit; an endless transfer belt; a transfer roller urged from an inner peripheral surface of the transfer belt toward the image bearing member via the transfer belt; a feeding surface forming roller, provided downstream of the transfer roller with respect to a traveling direction of the transfer belt, having such a shape that a diameter at each of end portions is smaller than a diameter at a central portion with respect to a rotational axis direction; and a stretching roller, downstream of the feeding surface forming roller with respect to the traveling direction of the transfer belt, having such a shape that a diameter at each of end portions is larger than a diameter at a central portion with respect to the rotational axis direction.

    IMAGE FORMING APPARATUS
    10.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号:US20170003624A1

    公开(公告)日:2017-01-05

    申请号:US15194862

    申请日:2016-06-28

    IPC分类号: G03G15/16

    摘要: An image forming apparatus includes a movable intermediary transfer member, a toner image forming unit, a rotatable transfer member, a fixing unit, a recording material feeding portion, an executing portion, and first and second cleaning units. The first cleaning unit includes a first brush roller, a first rotatable member and a first blade member. The second cleaning unit includes a second brush roller, a second rotatable member, a second blade member and a third blade member. The third blade member is disposed downstream of the cleaning portion and upstream of a contact portion, between the second rotatable member and the second brush roller, with respect to a rotational direction of the second rotatable member, and scrapes a deposited matter off the second rotatable member with the rotation of the second rotatable member.

    摘要翻译: 图像形成装置包括可移动中间转印构件,调色剂图像形成单元,可旋转转印构件,定影单元,记录材料供给部,执行部以及第一和第二清洁单元。 第一清洁单元包括第一刷辊,第一可旋转构件和第一叶片构件。 第二清洁单元包括第二刷辊,第二可旋转构件,第二叶片构件和第三叶片构件。 第三叶片构件相对于第二可旋转构件的旋转方向设置在清洁部分的下游和第二可旋转构件和第二刷辊之间的接触部分的上游,并且将沉积物从第二可旋转构件 构件,其具有第二可旋转构件的旋转。