Image forming apparatus
    11.
    发明授权

    公开(公告)号:US09813565B2

    公开(公告)日:2017-11-07

    申请号:US15359455

    申请日:2016-11-22

    Inventor: Takashi Inoue

    Abstract: Plural sensors are arranged respectively for plural toner colors, and oscillate to generate and output detection signals with frequencies corresponding to toner densities using oscillator circuits. An analog switch selects one detection signal among the detection signals. A filter decreases amplitude of the selected detection signal. A first signal line transmits the detection signal with the decreased amplitude. A comparator compares the transmitted detection signal with a predetermined threshold value and outputs as the detection signal a signal of which a level is set as a high level or a low level in accordance with the comparison result, and thereby increases amplitude of the detection signal. A receiver-side IC receives the detection signal with the increased amplitude at a predetermined port, determines a frequency of the received detection signal, and determines the toner density on the basis of the determined frequency.

    Information processing apparatus with error verification including error processing or transferring again based on a code coinciding with codes defined by an interface communication standard
    12.
    发明授权
    Information processing apparatus with error verification including error processing or transferring again based on a code coinciding with codes defined by an interface communication standard 有权
    具有错误验证的信息处理装置,包括错误处理或基于与由接口通信标准定义的代码重合的代码再次传送

    公开(公告)号:US09389939B2

    公开(公告)日:2016-07-12

    申请号:US14223281

    申请日:2014-03-24

    Abstract: An information processing apparatus according to one aspect of the present disclosure includes a communication control portion, an error code storage portion, an acquiring portion, and a determination portion. Communication control portion communicates with storage device based on interface communication standard, to perform data transfer therewith. Error code storage portion stores one or a plurality of selected error codes selected from a plurality of error codes defined by interface communication standard. Acquiring portion acquires error information outputted from storage device. Determination portion determines whether or not error code indicated by error information coincides with selected error code. When determination portion determines that error code coincides with selected error code, communication control portion communicates again with storage device to perform data transfer therewith. When determination portion determines that error code does not coincide with selected error code, communication control portion executes error processing corresponding to error code indicated by error information.

    Abstract translation: 根据本公开的一个方面的信息处理设备包括通信控制部分,错误代码存储部分,获取部分和确定部分。 通信控制部分基于接口通信标准与存储装置进行通信,以便与其进行数据传送。 错误代码存储部分存储从由界面通信标准定义的多个错误代码中选择的一个或多个选择的错误代码。 获取部分获取从存储装置输出的错误信息。 确定部分确定由错误信息指示的错误代码是否与选择的错误代码一致。 当确定部分确定错误代码与所选择的错误代码一致时,通信控制部分再次与存储设备进行通信以与其一起进行数据传送。 当确定部分确定错误代码与选择的错误代码不一致时,通信控制部分执行与由错误信息指示的错误代码相对应的错误处理。

    Developing device capable of detecting storage amount of developer, image forming apparatus, and developer detection method

    公开(公告)号:US11550240B2

    公开(公告)日:2023-01-10

    申请号:US17648092

    申请日:2022-01-14

    Inventor: Takashi Inoue

    Abstract: A developing device includes a storage portion storing a developer, a conveying portion stirring and conveying the developer in the storage portion, a sensor, an acquisition processing portion, and a correction processing portion. The sensor outputs an electrical signal in accordance with magnetic permeability at a predetermined detection position in a conveyance path of the developer. The acquisition processing portion acquires a specific value based on the electrical signal outputted during a rotation period of the conveying portion. The correction processing portion corrects the specific value based on a rotation speed of the conveying portion when a fluctuation width of the electrical signal outputted during the rotation period of the conveying portion is less than a predetermined threshold, and corrects the specific value based on the rotation speed of the conveying portion and the fluctuation width when the fluctuation width is equal to or greater than the threshold.

    Image forming apparatus
    14.
    发明授权

    公开(公告)号:US10795282B2

    公开(公告)日:2020-10-06

    申请号:US16745027

    申请日:2020-01-16

    Abstract: An image forming apparatus includes a photosensitive drum, a developing section, a voltage applicator, a detector, a calculating section, and an evaluating section. The detector detects values of first and second currents. The first current flows between the photosensitive drum and the developing section during formation of an electrostatic latent image. The second current flows between the photosensitive drum and the developing section when the electrostatic latent image is not being formed. The calculating section calculates a toner charge-to-mass ratio. The evaluating section evaluates reliability of a calculation result of the toner charge-to-mass ratio by comparing the second current value to a reference value. The reference value is of a reference current flowing between the photosensitive drum and the developing section when the electrostatic latent image is not being formed, and indicates a current value detected after adjustment to at least one of the photosensitive drum and the developing section.

    Image forming apparatus
    15.
    发明授权

    公开(公告)号:US10191441B2

    公开(公告)日:2019-01-29

    申请号:US15956609

    申请日:2018-04-18

    Inventor: Takashi Inoue

    Abstract: In an image forming apparatus, a driving mechanism rotates a bottle attached to a bottle attaching portion by engaging with a first end of the bottle. A cover member, positioned to face a second end of the bottle, is supported to be able to open and close an opening from which the bottle is inserted. An elastic member applies upwards elastic force to the bottle attaching portion. A level sensor detects a position of the bottle attaching portion in an up-down direction. A signal processing device executes a full-state notifying process when a detection signal of the level sensor during operation of the driving mechanism fails to satisfy an abnormality condition, and the position indicated by the detection signal is lower than a predetermined reference position. The abnormality condition includes either or both of an amplitude condition and a cycle condition for a rotation cycle of the bottle.

    Image reading apparatus, image forming apparatus, storage medium, and image reading method
    16.
    发明授权
    Image reading apparatus, image forming apparatus, storage medium, and image reading method 有权
    图像读取装置,图像形成装置,存储介质和图像读取方法

    公开(公告)号:US09191547B2

    公开(公告)日:2015-11-17

    申请号:US14525388

    申请日:2014-10-28

    Inventor: Takashi Inoue

    Abstract: An image reading apparatus irradiates an object with light and reads an image on or of the object. The image reading apparatus includes a table on which the object is placed, a planar light source configured to emit light to the object, a range-finding section configured to measure a distance between the table and the object, and a control section configured to cause the planar light source to entirely or partially emit light. The control section controls a light emitting portion of the planar light source thereby to control a light collection spot for the planar light source to a position based on a measurement value obtained by the range-finding section.

    Abstract translation: 图像读取装置用光照射物体并读取物体上的图像。 所述图像读取装置具有放置对象的工作台,被配置为向所述对象发光的平面光源,被配置为测量所述工作台与所述物体之间的距离的测距部,以及控制部, 该平面光源完全或部分地发光。 控制部分控制平面光源的发光部分,从而基于由测距部分获得的测量值将面光源的光采集点控制到位置。

Patent Agency Ranking