ELECTRONIC APPARATUS THAT DECIDES WHETHER ABNORMAL NOISE HAS OCCURRED AND IDENTIFIES FUNCTIONAL UNIT GENERATING ABNORMAL NOISE, AND IMAGE FORMING APPARATUS

    公开(公告)号:US20210311670A1

    公开(公告)日:2021-10-07

    申请号:US17220645

    申请日:2021-04-01

    Inventor: Lin Lu

    Abstract: An electronic apparatus includes a sound collecting device, a storage device, a display device, and a control device. The storage device contains a normal spectrogram representing the operation sound of each of functional units, acquired when low-speed operation is normally performed, and a timing chart indicating a timing that each functional unit operates when the electronic apparatus performs the low-speed operation. The control device analyzes frequency of the sound data collected by the sound collecting device when the electronic apparatus performs the low-speed operation, and outputs the spectrogram, decides whether abnormal noise has occurred, by comparison between the outputted spectrogram and the normal spectrogram, identifies, upon deciding that abnormal noise has occurred, the functional unit that is a source of the abnormal noise, by comparison between the timing chart and the outputted spectrogram, and causes the display device to display a first screen indicating the identified functional unit.

    Transfer unit and image forming apparatus
    2.
    发明授权
    Transfer unit and image forming apparatus 有权
    转印单元和图像形成装置

    公开(公告)号:US09285721B2

    公开(公告)日:2016-03-15

    申请号:US14446950

    申请日:2014-07-30

    Inventor: Lin Lu

    CPC classification number: G03G15/161 G03G15/0136 G03G15/1615

    Abstract: A transfer unit includes: a transfer belt mounted over a plurality of rollers to run to transfer toner images on a plurality of image carriers to a front side of the transfer belt; transfer rollers provided for the respective image carriers to give a transfer potential to the transfer belt to transfer the toner images thereto; a drive mechanism configured to move only the transfer rollers for formation of a multicolor image into and out of contact with the transfer belt; a cleaning member contactable with a back side of the transfer belt to clean the back side; and a shifting mechanism configured to, upon contact of the transfer rollers with the transfer belt, shift the cleaning member into contact with the back side of the transfer belt and, upon departure of the transfer rollers from the transfer belt, shift the cleaning member out of contact with the back side.

    Abstract translation: 转印单元包括:转印带,其安装在多个辊上以运行以将多个图像载体上的调色剂图像转印到转印带的前侧; 为各个图像载体提供的转印辊给转印带传递电荷以将调色剂图像转印到转印带上; 驱动机构,其构造成仅移动用于形成多色图像的转印辊与转印带接触和脱离接触; 清洁部件,其与所述转印带的背面接触以清洁所述背面; 以及移动机构,其构造成在所述转印辊与所述转印带接触时,使所述清洁构件与所述转印带的背面接触,并且在所述转印辊从所述转印带离开时将所述清洁构件移出 与背面接触。

    Diagnosing an image forming apparatus based on sound signal analysis

    公开(公告)号:US11301181B2

    公开(公告)日:2022-04-12

    申请号:US17220645

    申请日:2021-04-01

    Inventor: Lin Lu

    Abstract: An electronic apparatus includes a sound collecting device, a storage device, a display device, and a control device. The storage device contains a normal spectrogram representing the operation sound of each of functional units, acquired when low-speed operation is normally performed, and a timing chart indicating a timing that each functional unit operates when the electronic apparatus performs the low-speed operation. The control device analyzes frequency of the sound data collected by the sound collecting device when the electronic apparatus performs the low-speed operation, and outputs the spectrogram, decides whether abnormal noise has occurred, by comparison between the outputted spectrogram and the normal spectrogram, identifies, upon deciding that abnormal noise has occurred, the functional unit that is a source of the abnormal noise, by comparison between the timing chart and the outputted spectrogram, and causes the display device to display a first screen indicating the identified functional unit.

    Fixing device and image forming apparatus
    4.
    发明授权
    Fixing device and image forming apparatus 有权
    固定装置和成像装置

    公开(公告)号:US09329547B2

    公开(公告)日:2016-05-03

    申请号:US14686997

    申请日:2015-04-15

    CPC classification number: G03G15/2028 G03G15/2064

    Abstract: A fixing device includes a first rotary member, a second rotary member, a support member having a connection part, an urging member, and an engaging member. The engaging member is capable of changing a state of the fixing device between a pressure applied state and a pressure reduced state using the urging member and the support member. When the nip pressure is in the pressure applied state, the engaging member changes a position of the urging member to direct the urging member longitudinally in a tangential direction to an arc that has a center coinciding with a center of rotation of the support member and that passes through the connecting portion. When the nip pressure is in the pressure reduced state, the engaging member changes the position of the urging member to direct the urging member longitudinally in a direction different from the tangential direction.

    Abstract translation: 定影装置包括第一旋转构件,第二旋转构件,具有连接部分的支撑构件,推动构件和接合构件。 接合构件能够使用推动构件和支撑构件来改变在施加压力的状态和减压状态之间的定影装置的状态。 当压区压力处于压力施加状态时,接合构件改变推动构件的位置,以沿着与具有与支撑构件的旋转中心重合的中心的弧线的切线方向纵向引导施力构件, 穿过连接部分。 当压区压力处于压力降低状态时,接合构件改变推动构件的位置,以沿着与切线方向不同的方向纵向引导施力构件。

    Image forming device
    5.
    发明授权
    Image forming device 有权
    图像形成装置

    公开(公告)号:US09008566B2

    公开(公告)日:2015-04-14

    申请号:US14090607

    申请日:2013-11-26

    Abstract: An image forming device includes: a secondary transfer roller configured to secondarily transfer a toner image transferred to an intermediate transfer belt, to a transfer paper; separating plates; and a power supply circuit configured to apply bias voltages to the separating plates. The separating plates are configured to separate the transfer paper from the intermediate transfer belt when the bias voltages are applied to the separating plates. The separating plates include two or more separating plates installed along a direction perpendicular to the transfer paper conveying direction. The bias voltages are applied to the separating plates independently of each other depending on a toner amount distribution of the toner image transferred to the transfer paper, in the direction perpendicular to the transfer paper conveying direction.

    Abstract translation: 图像形成装置包括:二次转印辊,其被配置为将转印到中间转印带上的调色剂图像二次转印到转印纸上; 分离板; 以及电源电路,被配置为向所述分离板施加偏置电压。 当偏压被施加到分离板时,分离板构造成将转印纸与中间转印带分离。 分离板包括沿着与转印纸传送方向垂直的方向安装的两个或更多个分离板。 根据转印到转印纸上的调色剂图像的调色剂量分布,在垂直于转印纸输送方向的方向上,将偏置电压彼此独立地施加到分离板。

    Image evaluation system
    6.
    发明授权

    公开(公告)号:US11651176B2

    公开(公告)日:2023-05-16

    申请号:US17583999

    申请日:2022-01-25

    Abstract: An image evaluation system includes an image forming apparatus and an information processing apparatus. The image forming apparatus prints a reference document including pattern images. The image forming apparatus prints, on the reference document, a check region including check items with respect to the image quality of the printed result. The image forming apparatus reads the printed reference document to generate reference document data. The image forming apparatus transmits the generated reference document data to the information processing apparatus. Based on the received reference document data, the information processing apparatus recognizes a check item selected in the check region.

    Electronic device capable of detecting occurrence of abnormal noise

    公开(公告)号:US11553094B2

    公开(公告)日:2023-01-10

    申请号:US17693177

    申请日:2022-03-11

    Abstract: In an image forming apparatus, a controller allows a sound output device to output a starting sound and an ending sound at a start and end of diagnostic image formation processing, respectively, determines whether abnormal noise has occurred by identifying data ranging from the starting sound to the ending sound in an diagnostic spectrogram as a comparison target for data ranging from the starting sound to the ending sound in a normal spectrogram to match both the spectrograms in terms of width in a time-axis direction, and identifies a source of the abnormal noise by identifying the data ranging from the starting sound to the ending sound in the diagnostic spectrogram as a comparison target for data in ranging from a timing of start to a timing of end in a timing chart to match the diagnostic spectrogram with the timing chart in terms of width in the time-axis direction.

    Development device and image forming apparatus including the same
    8.
    发明授权
    Development device and image forming apparatus including the same 有权
    显影装置及包括其的图像形成装置

    公开(公告)号:US09448508B2

    公开(公告)日:2016-09-20

    申请号:US14102242

    申请日:2013-12-10

    Inventor: Naoki Yamane Lin Lu

    CPC classification number: G03G15/0887 G03G15/0893

    Abstract: A development device includes a developer container, a developer bearing member, a mixing/transporting member, an opening/closing member, and a drive mechanism. The developer container contains a developer. The developer bearing member is rotatably supported by the developer container. The developer bearing member also has a surface facing an image bearing member on which an electrostatic latent image is to be formed. The developer is borne on the surface of the developer bearing member. The mixing/transporting member mixes and transports the developer in the developer container. The opening/closing member opens and closes a developer outlet for discharging an excess of the developer in the developer container. The drive mechanism drives the opening/closing member in association with driving of the developer bearing member or the mixing/transporting member to open the developer outlet.

    Abstract translation: 显影装置包括显影剂容器,显影剂承载构件,混合/输送构件,打开/关闭构件和驱动机构。 开发者容器包含开发人员。 显影剂承载构件由显影剂容器可旋转地支撑。 显影剂承载构件还具有面向要在其上形成静电潜像的图像承载构件的表面。 显影剂承载在显影剂承载构件的表面上。 混合/输送构件将显影剂混合并输送到显影剂容器中。 打开/关闭构件打开和关闭用于排出显影剂容器中的过量显影剂的显影剂出口。 驱动机构与显影剂承载部件或混合/传送部件的驱动相关联地驱动打开/关闭部件以打开显影剂出口。

    TRANSFER UNIT AND IMAGE FORMING APPARATUS
    9.
    发明申请
    TRANSFER UNIT AND IMAGE FORMING APPARATUS 有权
    传输单元和图像形成装置

    公开(公告)号:US20150037063A1

    公开(公告)日:2015-02-05

    申请号:US14446950

    申请日:2014-07-30

    Inventor: Lin Lu

    CPC classification number: G03G15/161 G03G15/0136 G03G15/1615

    Abstract: A transfer unit includes: a transfer belt mounted over a plurality of rollers to run to transfer toner images on a plurality of image carriers to a front side of the transfer belt; transfer rollers provided for the respective image carriers to give a transfer potential to the transfer belt to transfer the toner images thereto; a drive mechanism configured to move only the transfer rollers for formation of a multicolor image into and out of contact with the transfer belt; a cleaning member contactable with a back side of the transfer belt to clean the back side; and a shifting mechanism configured to, upon contact of the transfer rollers with the transfer belt, shift the cleaning member into contact with the back side of the transfer belt and, upon departure of the transfer rollers from the transfer belt, shift the cleaning member out of contact with the back side.

    Abstract translation: 转印单元包括:转印带,其安装在多个辊上以运行以将多个图像载体上的调色剂图像转印到转印带的前侧; 为各个图像载体提供的转印辊给转印带传递电荷以将调色剂图像转印到转印带上; 驱动机构,其构造成仅移动用于形成多色图像的转印辊与转印带接触和脱离接触; 清洁部件,其与所述转印带的背面接触以清洁所述背面; 以及移动机构,其被配置为当所述转印辊与所述转印带接触时,使所述清洁构件与所述转印带的背面接触,并且在所述转印辊离开所述转印带时,将所述清洁构件移出 与背面接触。

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