IMAGE PROCESSING METHOD, IMAGE PROCESSING APPARATUS

    公开(公告)号:US20220206424A1

    公开(公告)日:2022-06-30

    申请号:US17558338

    申请日:2021-12-21

    Abstract: A processor selects a target sheet from a plurality of predetermined sheet candidates in accordance with selection information that is input via an input device. Furthermore, the processor derives feature information regarding a noise point from a target image that is obtained through an image reading process performed on an output sheet output from an image forming device, the noise point being a dot-like noise image included in the target image. Furthermore, the processor determines whether or not the noise point is a dot-like sheet noise by applying the feature information to a determination algorithm that corresponds to the target sheet, the sheet noise being included in a sheet of the output sheet itself, the determination algorithm being one of a plurality of determination algorithms that respectively correspond to the plurality of sheet candidates.

    Image forming apparatus determining toner replacement timing

    公开(公告)号:US11307512B2

    公开(公告)日:2022-04-19

    申请号:US17165370

    申请日:2021-02-02

    Abstract: An image forming apparatus includes a toner charge amount predictor, a toner developing resistance calculator, and a determiner. The toner developing resistance calculator calculates a toner developing resistance on the basis of a bias voltage applied to a developing device and a measured developing current by dividing a value of the bias voltage by a value of the developing current when a developing device develops an electrostatic latent image formed on the surface of an image carrier to form a toner image. The toner charge amount predictor predicts a toner charge amount of a toner which is supplied to the image carrier by the developing device on the basis of a density of the toner image and the developing current. The determiner determines a state of the developing device on the basis of the toner charge amount and the toner developing resistance.

    Image forming apparatus
    34.
    发明授权

    公开(公告)号:US11150574B2

    公开(公告)日:2021-10-19

    申请号:US17178577

    申请日:2021-02-18

    Abstract: An image forming apparatus includes a plurality of image forming units, a developing voltage power supply, a current detection unit, and a control unit. The image forming units form an image by superimposing a toner image of a same color and a same type, and substantially same development conditions are set to evenly divide an image density among the image forming units. The control unit detects whether there is an anomaly in the image forming unit based on detecting a DC component of developing current, being either of current flowing through a non-exposed portion of an image carrier during image formation, and current flowing through an exposed portion of the image carrier. When an anomaly is detected in any image forming unit, the control unit inhibits use of the image forming unit, and resets the development conditions to evenly divide an image density among the usable image forming units.

    Fixing device and image forming apparatus

    公开(公告)号:US10761461B2

    公开(公告)日:2020-09-01

    申请号:US16402378

    申请日:2019-05-03

    Inventor: Kanako Morimoto

    Abstract: A fixing device includes a fixing belt, a flat heater, a holder and a pressing roller. The fixing belt is rotatable and cylindrical. The flat heater has a holding body and a heating resistor. The holder is configured to hold the flat heater such that a surface in which the heating resistor is embedded comes into contact with an inner circumferential face of the fixing belt via a lubricant. Of a contact area of the flat heater with the inner circumferential face of the fixing belt, in an area outside longitudinal end portion of the holding body, a groove is formed such that the lubricant flows to a center side of the holding body toward a downstream side in a rotational direction of the fixing belt.

    Image forming apparatus having cleaning device for intermediate transfer member
    36.
    发明授权
    Image forming apparatus having cleaning device for intermediate transfer member 有权
    具有中间转印部件清洁装置的图像形成装置

    公开(公告)号:US09465330B2

    公开(公告)日:2016-10-11

    申请号:US14989821

    申请日:2016-01-07

    Inventor: Kanako Morimoto

    CPC classification number: G03G15/1665 G03G15/161 G03G15/1675 G03G2215/1661

    Abstract: To remove toner, which is primarily transferred onto an intermediate transfer member, from the intermediate transfer member, a digital multifunction peripheral includes a first control unit that controls a second bias applicator to apply to a secondary transfer roller a bias of the opposite polarity to the charged toner when the toner passes through a position where the secondary transfer roller is placed, and a second control unit that, after the operation of the first control unit, controls a second bias applicator to apply to the secondary transfer roller a bias of the same polarity as the charged toner and controls a pre-brush bias applicator to apply to a pre-brush a bias of the opposite polarity to the toner.

    Abstract translation: 为了从中间转印部件移除主要转印到中间转印部件上的调色剂,数字多功能外围设备包括第一控制单元,该第一控制单元控制第二偏压施加器以向二次转印辊施加相对极性的偏压 当调色剂通过放置二次转印辊的位置时的带电调色剂;以及第二控制单元,其在第一控制单元的操作之后控制第二偏压施加器以施加到二次转印辊上的偏压 作为带电调色剂的极性,并且控制预刷偏置施加器以将预涂刷到与调色剂相反极性的偏压。

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