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公开(公告)号：US10747149B2
公开(公告)日：2020-08-18
申请号：US16205701
申请日：2018-11-30
发明人： Masami Hano , Takahito Fuse , Tadashi Fukuda , Shota Soda
摘要： An image forming apparatus includes a rotatable intermediate transfer member; a first image forming portion having a first photosensitive member which rotates, a first developing unit, and a first charge eliminating unit; a second image forming portion that is located on a downstream side of the first image forming portion in a rotational direction of the intermediate transfer member, and that has a second photosensitive member which rotates, a second developing unit, and a second charge eliminating unit; a transfer unit; and a switching unit that switches a light amount of the second charge eliminating unit when a usage amount of the second image forming portion reaches a predetermined amount to a value that is greater than a light amount of the first charge eliminating unit when a usage amount of the first image forming portion reaches the predetermined amount.
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公开(公告)号：US20160209772A1
公开(公告)日：2016-07-21
申请号：US14996856
申请日：2016-01-15
发明人： Shota Soda
IPC分类号： G03G15/00
CPC分类号： G03G15/0283 , G03G15/80 , G03G21/08
摘要： When attachment of an unused photoconductor unit is detected, a mode is executed in which, during non-image formation, a first current flowing in a charging roller is detected when a photoconductor is re-charged without irradiation of light by a pre-exposure device after being charged and passing through a transfer position during non-image formation, and a second current flowing in the charging roller is detected when the photoconductor is re-charged with irradiation of light by the pre-exposure device after being charged and passing through the transfer position, and a current supplied to an LED lamp during image formation is controlled in accordance with detection results.
摘要翻译： 当检测到未使用的感光体单元的附着时，执行一种模式，其中在非图像形成期间，当光电导体在未被预曝光装置照射的情况下被重新充电时，检测到在充电辊中流动的第一电流 在非图像形成期间被充电并通过转印位置之后，并且当感光体在充电之后通过预曝光装置的光线照射被再充电并且通过在充电辊中时，检测到在充电辊中流动的第二电流 转印位置，并且根据检测结果控制在图像形成期间提供给LED灯的电流。
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公开(公告)号：US20180284671A1
公开(公告)日：2018-10-04
申请号：US15936084
申请日：2018-03-26
发明人： Takahito Fuse , Masami Hano , Kenichiro Kitajima , Tadashi Fukuda , Shota Soda , Hidetaka Nakahara , Hiroyuki Amano
摘要： An image forming apparatus has a changing portion configured to change, based on a detection result of a temperature sensor, response sensitivity in starting of power supply by a determination portion based on a detection result of a human body detection sensor in a case where a human body approaches the human body detection sensor. The changing portion increases the sensitivity in a case where a temperature detected by the temperature sensor is a second temperature lower than a first temperature than in a case where the temperature detected by the temperature sensor is the first temperature.
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公开(公告)号：US09915889B2
公开(公告)日：2018-03-13
申请号：US15153112
申请日：2016-05-12
发明人： Shota Soda
IPC分类号： G03G15/043 , G03G15/02 , G03G21/08
CPC分类号： G03G15/043 , G03G15/0266 , G03G21/08
摘要： An image forming apparatus includes an intermediary transfer member, a first image forming portion including a first photosensitive member, a first charging member, a first developing device, a first transfer portion, and a first pre-exposure device, a second image forming portion including a second photosensitive member, a second charging member, a second developing device, a second transfer portion, and a second pre-exposure device, a current detecting portion, and an adjusting portion for adjusting an exposure amount of the first photosensitive member by the first pre-exposure device on the basis of a detection result of the detecting portion in a region on the first photosensitive member having contacted a toner band formed in a maximum amount per unit area on the intermediary transfer member by the second image forming portion in a state in which a transfer current is supplied.
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公开(公告)号：US09835970B2
公开(公告)日：2017-12-05
申请号：US15185641
申请日：2016-06-17
发明人： Kenichi Shibuya , Sumito Tanaka , Shota Soda , Jun Tomine , Hiroyuki Eda , Hirohisa Nakajima
CPC分类号： G03G15/0275 , G03G15/0189 , G03G21/08 , G03G2215/0129
摘要： In an image forming apparatus including a plurality of image forming stations, on the basis of a density of a toner image formed in an upstream image forming station, an operation of a pre-exposure device in a downstream image forming station is controlled.
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公开(公告)号：US20200057401A1
公开(公告)日：2020-02-20
申请号：US16536338
申请日：2019-08-09
发明人： Tadashi Fukuda , Takahito Fuse , Masami Hano , Shota Soda
摘要： An image forming apparatus includes a photosensitive member, a first charging roller, a first cleaning member, a second charging roller, and a second cleaning member. The relationship is satisfied (X×L0+L1+L2)−(Y×L3+L4)≠0 where L0 represents a length of a whole circumference of the first charging roller, L1 represents a length between the first contact area and the first contact position of the first charging roller and the photosensitive member, L3 represents a length of a whole circumference of the second charging roller, L4 represents a length between the second contact area and the second contact position, L2 represents a length between the first contact position and the second contact position, X represents an integer in a range of 0≤X≤40, and Y represents an integer in a range of 0≤Y≤40.
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公开(公告)号：US20160320747A1
公开(公告)日：2016-11-03
申请号：US15133300
申请日：2016-04-20
发明人： Jun Mochizuki , Osamu Ariizumi , Shota Soda
CPC分类号： G03G15/065 , G03G15/0907 , G03G15/50
摘要： A control portion switches first and second modes based on information which influences a toner charging amount. In the first mode, a driving input to the developer bearing member is stopped in response to image formation completion before or at the same time when a trailing end of a charging area reaches the development position, and an application of the development voltage is stopped after the trailing end reaches the development position. In the second mode, The driving input to the developer bearing member is stopped in response to image formation completion before or at the same time when the trailing end reaches the development position, and the application of the development voltage is stopped at a timing after the trailing end reaches the development position and earlier than that in the first mode, or at the same time when the trailing end reaches the development position.
摘要翻译： 控制部分基于影响调色剂充电量的信息来切换第一和第二模式。 在第一模式中，响应于充电区域的后端到达显影位置之前或同时的图像形成完成，停止对显影剂承载部件的驱动输入，并且在显影电压的施加之后停止显影电压的施加 尾端到达显影位置。 在第二模式中，响应于在后端到达显影位置之前或同时的图像形成完成时停止对显影剂承载部件的驱动输入，并且显影电压的施加在 尾端到达显影位置并且比第一模式中的开始位置早，或者在后端到达显影位置的同时。
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公开(公告)号：US09417549B2
公开(公告)日：2016-08-16
申请号：US14872409
申请日：2015-10-01
发明人： Shota Soda
IPC分类号： G03G15/02
CPC分类号： G03G15/0266 , G03G2215/0129
摘要： An image forming apparatus includes a rotatable photosensitive member; a charger for charging the photosensitive member by being supplied with a DC voltage; an image forming station for forming an image on the photosensitive member charged by the charger to form an electrostatic image; a current detector for detecting a DC current flowing to the charger when the charger is supplied with a DC voltage from the voltage source; an executing portion for executing pre-charging operation for charging by the charger the photosensitive member a which is rotating, after production of an image formation signal prior to image forming operation by the image forming station; and a controller for controlling an amount of rotation of the photosensitive member in the pre-charging operation on the basis of a DC current detected by the current detector during the pre-charging operation.
摘要翻译： 一种图像形成装置包括：可转动感光件; 充电器，用于通过提供直流电压对感光构件充电; 图像形成站，用于在由充电器充电的感光构件上形成图像以形成静电图像; 电流检测器，用于当从所述电压源向所述充电器提供DC电压时，检测流向所述充电器的DC电流; 执行部分，用于在由图像形成站在图像形成操作之前产生图像形成信号之后，由充电器执行正在旋转的感光元件a的预充电操作; 以及控制器，用于基于在预充电操作期间由电流检测器检测到的DC电流来控制预充电操作中的感光构件的旋转量。
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公开(公告)号：US10656581B2
公开(公告)日：2020-05-19
申请号：US15936084
申请日：2018-03-26
发明人： Takahito Fuse , Masami Hano , Kenichiro Kitajima , Tadashi Fukuda , Shota Soda , Hidetaka Nakahara , Hiroyuki Amano
摘要： An image forming apparatus has a changing portion configured to change, based on a detection result of a temperature sensor, response sensitivity in starting of power supply by a determination portion based on a detection result of a human body detection sensor in a case where a human body approaches the human body detection sensor. The changing portion increases the sensitivity in a case where a temperature detected by the temperature sensor is a second temperature lower than a first temperature than in a case where the temperature detected by the temperature sensor is the first temperature.
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公开(公告)号：US09606470B2
公开(公告)日：2017-03-28
申请号：US14996856
申请日：2016-01-15
发明人： Shota Soda
CPC分类号： G03G15/0283 , G03G15/80 , G03G21/08
摘要： When attachment of an unused photoconductor unit is detected, a mode is executed in which, during non-image formation, a first current flowing in a charging roller is detected when a photoconductor is re-charged without irradiation of light by a pre-exposure device after being charged and passing through a transfer position during non-image formation, and a second current flowing in the charging roller is detected when the photoconductor is re-charged with irradiation of light by the pre-exposure device after being charged and passing through the transfer position, and a current supplied to an LED lamp during image formation is controlled in accordance with detection results.
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