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    Image forming apparatus and program executed by computer of image forming apparatus
    3.
    发明授权
    Image forming apparatus and program executed by computer of image forming apparatus 有权

    公开(公告)号：US10509344B2

    公开(公告)日：2019-12-17

    申请号：US16163018

    申请日：2018-10-17

    申请人： Konica Minolta Inc.

    发明人： Masato Kimura

    IPC分类号： G03G15/16 ,  B41J2/385 ,  G03G15/043 ,  G03G15/02 ,  G03G15/06 ,  G03G21/06 ,  G03G15/045 ,  G03G21/08 ,  G03G21/00 ,  G03G15/00 ,  G03G15/047

    摘要： An electrophotographic image forming apparatus includes: an image carrier that carries and conveys a toner image; a charging member arranged in contact with or close to the image carrier; a charging power supply that charges the image carrier; an exposurer that forms a latent image on the charged image carrier; a developing member arranged close to the image carrier; a developing power supply that develops the latent image and forms a toner image on the image carrier; a transfer member that transfers the toner image to a medium; and a hardware processor that controls the image forming apparatus, wherein the hardware processor obtains a potential of an exposure part and a non-exposure part, on the image carrier after the toner image has been transferred to the medium, determines a charging bias based on a difference between the obtained potentials, and determines a developing bias based on the determined charging bias.

    Image forming apparatus with a proximity charger
    4.
    发明授权
    Image forming apparatus with a proximity charger 有权

    公开(公告)号：US09665030B2

    公开(公告)日：2017-05-30

    申请号：US15050023

    申请日：2016-02-22

    申请人： KONICA MINOLTA, INC.

    发明人： Tomohiro Kato ,  Kazuki Kobori ,  Hirohisa Shirai ,  Hisashi Murata ,  Masato Kimura

    IPC分类号： G03G15/02 ,  G03G21/20

    CPC分类号： G03G15/0266 ,  G03G21/20 ,  G03G2215/00772 ,  G03G2215/00776

    摘要： An image forming apparatus has: an image supporting member, a charger, a power source unit, an amperometric detector, and a processor. The power source unit applies a plurality of charging voltages, which includes alternating voltages respectively, to the charger sequentially while no print medium is fed. The alternating voltages have different peak-to-peak voltages for a forward discharge range and different peak-to-peak voltages for a reverse discharge range, respectively. The amperometric detector detects values of alternating current flowing in the charger during application of the charging voltages. The processor derives characteristic lines of alternating current value with respect to alternating voltage for the forward discharge range and for the reverse discharge range, respectively, from the values detected by the amperometric detector. The processor derives a peak-to-peak voltage to be used in a process in a different way depending on a difference in slope between the characteristic lines.

    Developing apparatus having recycling paths for recycling of toner and image forming apparatus including the same
    5.
    发明授权
    Developing apparatus having recycling paths for recycling of toner and image forming apparatus including the same 有权
    显影装置具有用于再循环调色剂的回收路径和包括其的成像设备

    公开(公告)号：US09551958B2

    公开(公告)日：2017-01-24

    申请号：US14694444

    申请日：2015-04-23

    申请人： KONICA MINOLTA, INC.

    发明人： Yuusuke Mandai ,  Yasuyuki Inada ,  Shinji Ogawa ,  Masato Kimura ,  Yu Mukobayashi

    IPC分类号： G03G21/10 ,  G03G15/08

    CPC分类号： G03G15/0893 ,  G03G15/0891 ,  G03G21/10 ,  G03G2215/0607 ,  G03G2215/0819

    摘要： A developing apparatus that develops an electrostatic latent image on an image supporting body using developer including toner and carrier includes a circulation path where the developer circulates, a discharge path connected to the circulation path through which some of the developer passes, and a first recycle path connected to the discharge path and allowing some of the developer flowing into the discharge path to return to the circulation path. The discharge path includes a discharge opening for discharging the developer flowing into the discharge path, and a first return opening for connecting to the first recycle path. The first return opening is located on an upper side in a vertical direction with respect to the discharge opening and located on an upstream side in a pass-through direction of the developer flowing into the discharge path.

    摘要翻译： 使用包括调色剂和载体的显影剂在图像支持体上显影静电潜像的显影装置包括显影剂循环的循环路径，连接到一些显影剂通过的循环路径的排出路径和第一再循环路径 连接到排放路径并允许一些显影剂流入排出路径返回到循环路径。 排出路径包括用于排出流入排出路径的显影剂的排出口和用于连接到第一再循环路径的第一返回开口。 第一返回开口位于相对于排出口的垂直方向的上侧，位于流入排出路径的显影剂的通过方向的上游侧。

    Image forming apparatus
    6.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号：US09482981B2

    公开(公告)日：2016-11-01

    申请号：US15049423

    申请日：2016-02-22

    申请人： KONICA MINOLTA, INC.

    发明人： Tomohiro Kato ,  Kazuki Kobori ,  Hirohisa Shirai ,  Hisashi Murata ,  Masato Kimura

    IPC分类号： G03G15/02 ,  G03G21/20

    CPC分类号： G03G15/0266 ,  G03G21/20 ,  G03G2215/00772 ,  G03G2215/00776 ,  G03G2215/0132

    摘要： An image forming apparatus has: an image supporting member; a charger in proximity to the image supporting member; a power source unit configured to apply charging voltages to the charger sequentially, the charging voltages including alternating voltages having different peak-to-peak voltages, respectively; an amperometric detector configured to detect values of alternating currents flowing in the charger during application of the charging voltages; and a processor configured to carry out a first charging voltage determination process or a second charging voltage determination process requiring a shorter time than the first charging voltage determination process selectively based on a detection result of the amperometric detector. The processor carries out the first charging voltage determination process or the second charging voltage determination process selectively in accordance with a difference between an ambient temperature at a previous time of carrying out the first charging voltage determination process and a current ambient temperature.

    摘要翻译： 图像形成装置具有：图像支撑部件; 靠近图像支撑构件的充电器; 电源单元，被配置为向充电器依次施加充电电压，所述充电电压分别包括具有不同峰 - 峰值电压的交流电压; 安培计检测器，被配置为在施加充电电压期间检测在充电器中流动的交流电流的值; 以及处理器，被配置为基于电流检测器的检测结果，选择性地执行需要比第一充电电压确定处理更短的时间的第一充电电压确定处理或第二充电电压确定处理。 处理器根据执行第一充电电压确定过程的先前时间的环境温度与当前环境温度之间的差异选择性地执行第一充电电压确定处理或第二充电电压确定处理。

    Image forming apparatus
    7.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号：US09568851B2

    公开(公告)日：2017-02-14

    申请号：US15053253

    申请日：2016-02-25

    申请人： Konica Minolta, Inc.

    发明人： Hisashi Murata ,  Kazuki Kobori ,  Hirohisa Shirai ,  Masato Kimura

    IPC分类号： G03G15/02

    CPC分类号： G03G15/0266 ,  G03G2215/0132 ,  G03G2215/021

    摘要： An image forming apparatus that forms an image on a medium includes: an image carrying member; a charging unit disposed in proximity to the image carrying member; a power supply unit configured to sequentially apply a plurality of charging voltages to the charging unit when the medium is not fed through; a current detecting unit configured to detect an AC value flowing through the charging unit; a processing unit configured to perform first charging voltage determination control to derive a peak-to-peak voltage value to be used in a process; and a storage unit configured to pre-store a reference peak-to-peak voltage value for each wastage level of the image carrying member, wherein the processing unit: prohibits execution of the first charging voltage determination control and performs second charging voltage determination control; and obtains a reference peak-to-peak voltage value and derives a peak-to-peak voltage value to be used in the process.

    摘要翻译： 在介质上形成图像的图像形成装置包括：图像承载部件; 设置在图像承载构件附近的充电单元; 电源单元，被配置为当所述介质不被馈送时，向所述充电单元顺序地施加多个充电电压; 电流检测单元，被配置为检测流过所述充电单元的AC值; 处理单元，被配置为执行第一充电电压确定控制以导出在过程中要使用的峰 - 峰值电压值; 以及存储单元，被配置为对所述图像承载构件的每个浪费水平预先存储参考峰 - 峰值电压值，其中所述处理单元：禁止执行所述第一充电电压确定控制并执行第二充电电压确定控制; 并获得参考峰 - 峰值电压值，并导出在该过程中要使用的峰 - 峰电压值。

    Image forming apparatus, image forming method and image forming program capable of improving cleaning performance by a cleaning blade
    8.
    发明授权
    Image forming apparatus, image forming method and image forming program capable of improving cleaning performance by a cleaning blade 有权

    公开(公告)号：US11360419B2

    公开(公告)日：2022-06-14

    申请号：US17353759

    申请日：2021-06-21

    申请人： Konica Minolta, Inc.

    发明人： Masato Kimura

    IPC分类号： G03G15/16 ,  G03G15/00 ,  G03G21/00

    摘要： An image forming apparatus includes: an image carrier that carries a toner image including toner; a driver that rotates the image carrier; a toner remover that comes in contact with the image carrier and removes toner remaining on the image carrier while the image carrier is rotated in a forward direction by the driver; and a hardware processor that evaluates a degree of deterioration of the image carrier or the toner remover, determines a number of times of execution of removal operation in which the image carrier is rotated in a reverse direction and then rotated in the forward direction, on the basis of the degree of deterioration, and controls the driver to cause the removal operation to be executed the number of times of execution.