IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
    1.
    发明申请
    IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 有权
    图像形成装置和图像形成方法

    公开(公告)号:US20140268242A1

    公开(公告)日:2014-09-18

    申请号:US14202563

    申请日:2014-03-10

    IPC分类号: G06K15/02 G06K15/14

    摘要: An image forming apparatus includes an image density detector, an image forming device, a rotator, an image density controller, and a timing correction data obtainer. The image density detector detects a toner density of an image formed on an image bearing member. An image forming device forms the image using a density adjustable element that adjusts the density of the image. The rotator forms an image pattern while the density adjustable element is changed, and a density thereof is detected by the image density detector. The image density controller controls the image forming device using a density correction data for the density adjustable element corresponding to a rotational period of the rotator. The timing correction data obtainer obtains timing correction data for correction of driving timing of the image forming device based on a change in the density of the image pattern detected by the image density detector.

    摘要翻译: 图像形成装置包括图像浓度检测器,图像形成装置,旋转器,图像浓度控制器和定时校正数据获取器。 图像浓度检测器检测形成在图像承载部件上的图像的调色剂浓度。 图像形成装置使用调节图像的浓度的浓度可调元件形成图像。 旋转体在密度可调元件改变时形成图像图案,并且其浓度由图像浓度检测器检测。 图像浓度控制器使用与旋转体的旋转周期对应的密度可调元件的浓度校正数据来控制图像形成装置。 定时校正数据获取器基于由图像浓度检测器检测到的图像图案的浓度的变化获得用于校正图像形成装置的驱动定时的定时校正数据。

    IMAGE FORMING APPARATUS
    2.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号:US20140270828A1

    公开(公告)日:2014-09-18

    申请号:US14203798

    申请日:2014-03-11

    IPC分类号: G03G15/06

    摘要: An image forming apparatus includes a latent-image bearing body, a charging unit, a latent-image writing unit, a development unit, a development power, and a bias control unit. After a start of an image forming operation, the bias control unit performs a process of constantly maintaining an output of a development bias at an adjustment bias value. The adjustment bias value is a central value in a periodic fluctuation range of the output of the development bias. At a timing at which a difference of the development bias from the adjustment bias value in the periodic fluctuation range is less than or equal to a predetermined threshold value, the bias control unit performs switching from the process of constantly maintaining the output of the development bias at the adjustment bias value to a process of periodically changing the output of the development bias based on development bias control data.

    摘要翻译: 图像形成装置包括潜像承载体,充电单元,潜像写入单元,显影单元,显影电力和偏置控制单元。 在图像形成操作开始之后,偏置控制单元执行持续将显影偏压的输出保持在调整偏置值的处理。 调整偏差值是显影偏压输出的周期性波动范围内的中心值。 在显影偏差与周期性波动范围内的调整偏置值的差小于或等于预定阈值的定时,偏置控制单元从持续保持显影偏压的输出的处理进行切换 将调整偏差值设定为基于显影偏压控制数据周期性地改变显影偏压的输出的过程。

    IMAGE FORMING APPARATUS CAPABLE OF EFFECTIVELY PREVENTING IMAGE DENSITY FLUCTUATION
    3.
    发明申请
    IMAGE FORMING APPARATUS CAPABLE OF EFFECTIVELY PREVENTING IMAGE DENSITY FLUCTUATION 有权
    能有效预防图像密度波动的图像形成装置

    公开(公告)号:US20140169814A1

    公开(公告)日:2014-06-19

    申请号:US14105477

    申请日:2013-12-13

    IPC分类号: G03G15/00

    摘要: An image forming apparatus includes an image forming unit including rotary members to form a toner image corresponding to image data, in which the image forming unit forms a toner pattern for detecting image density fluctuation; and an image forming condition determination controller to perform image forming processing to ultimately transfer the toner image onto a recording medium. In the image forming apparatus, the controller measures a periodic image density fluctuation occurring in a rotation cycle of the rotary members based on a detection result of a toner pattern; performs image forming condition determination processing to determine an image forming condition to reduce the image density fluctuation based on measured image density fluctuation data; and determines whether or not the image density fluctuation data measured multiple times satisfies a predetermined control termination condition.

    摘要翻译: 图像形成装置包括图像形成单元,该图像形成单元包括旋转构件,以形成与图像数据相对应的调色剂图像,其中图像形成单元形成用于检测图像浓度波动的调色剂图案; 以及图像形成条件确定控制器,以执行图像形成处理,以最终将调色剂图像转印到记录介质上。 在图像形成装置中,控制器基于调色剂图案的检测结果来测量在旋转构件的旋转周期中发生的周期性图像浓度波动; 执行图像形成条件确定处理,以基于测量的图像浓度波动数据确定图像形成条件以减小图像浓度波动; 并且确定多次测量的图像浓度波动数据是否满足预定的控制终止条件。

    IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
    4.
    发明申请
    IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 有权
    图像形成装置和图像形成方法

    公开(公告)号:US20160112580A1

    公开(公告)日:2016-04-21

    申请号:US14879177

    申请日:2015-10-09

    IPC分类号: H04N1/00 G03G15/01 H04N1/60

    摘要: An image forming apparatus includes an image bearer to bear a black toner pattern formed with a black toner image under an increased exposure amount and an increased developing bias. A first optical sensor detects an amount of reflection light reflected by the black toner pattern on the image bearer. The first optical sensor includes a light-emitting element to emit light toward the black toner pattern on the image bearer and a light-receiving element to receive the reflection light reflected by the black toner pattern on the image bearer. A toner adhesion amount converter converts the amount of the reflection light detected by the first optical sensor into a toner adhesion amount of toner adhered to the image bearer and adjusts an image density according to the toner adhesion amount.

    摘要翻译: 图像形成装置包括承载黑色调色剂图案的图像承载件,所述黑色调色剂图案在增加的曝光量和增加的显影偏压下由黑色调色剂图像形成。 第一光学传感器检测由图像载体上的黑色调色剂图案反射的反射光量。 第一光学传感器包括朝向图像承载体上的黑色调色剂图案发光的发光元件和用于接收由图像载体上的黑色调色剂图案反射的反射光的光接收元件。 调色剂粘附量转换器将由第一光学传感器检测到的反射光的量转换成粘附到图像承载体的调色剂附着量,并根据调色剂附着量来调整图像浓度。

    IMAGE FORMING APPARATUS
    5.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号:US20100040389A1

    公开(公告)日:2010-02-18

    申请号:US12512444

    申请日:2009-07-30

    申请人: Shinichi AKATSU

    发明人: Shinichi AKATSU

    IPC分类号: G03G15/00 G03G15/043

    摘要: A printer determines, in a process control, a reference exposure amount. A charging unit charges a surface of a photosensitive element to a target potential. After an exposure target area on the charged surface of the photosensitive element is exposed to a high adjustment exposure that corresponds to a high-exposure amount area, a control unit determines the reference exposure amount based on the target potential and a detected residual potential that is a result detected by a potential detecting unit as a potential of the target exposure area on the photosensitive element after being exposed to the high adjustment exposure.

    摘要翻译: 打印机在过程控制中确定参考曝光量。 充电单元将感光元件的表面充电到目标电位。 在感光元件的充电表面上的曝光目标区域暴露于对应于高曝光量区域的高调节曝光之后,控制单元基于目标电位和检测到的残留电位确定参考曝光量 在暴露于高调节曝光之后,由电位检测单元检测到的作为感光元件上的目标曝光区域的电位的结果。

    IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
    6.
    发明申请
    IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 有权
    图像形成装置和图像形成方法

    公开(公告)号:US20080317486A1

    公开(公告)日:2008-12-25

    申请号:US12138507

    申请日:2008-06-13

    IPC分类号: G03G15/00

    摘要: An image forming apparatus for performing an image forming operation is disclosed that includes an image carrier on which a toner image is formed, an intermediate transfer member configured to transfer the toner image to a recording medium, the intermediate transfer member having a toner image forming area including an output image forming area and a non-output image forming area located outside of the output image forming area, the toner image forming area being wider than the output image forming area, and a detecting part configured to measure a physical quantity regarding an image quality of a first reference image formed in the output image forming area and a second reference image formed in the non-output image forming area.

    摘要翻译: 公开了一种用于执行图像形成操作的图像形成装置,其包括其上形成有调色剂图像的图像载体,被配置为将调色剂图像转印到记录介质的中间转印部件,所述中间转印部件具有调色剂图像形成区域 包括输出图像形成区域和位于输出图像形成区域外部的非输出图像形成区域,调色剂图像形成区域比输出图像形成区域宽;以及检测部件,被配置为测量关于图像的物理量 在输出图像形成区域中形成的第一参考图像的质量和形成在非输出图像形成区域中的第二参考图像。

    IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
    7.
    发明申请
    IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 有权
    图像形成装置和图像形成方法

    公开(公告)号:US20070212086A1

    公开(公告)日:2007-09-13

    申请号:US11681836

    申请日:2007-03-05

    摘要: An image forming apparatus is disclosed that is able to form a full color image with high precision by correcting the adhesion quantity of an image visualizing agent and a position shift of a visible image while continuing to perform a printing process. The image forming apparatus includes an intermediate transfer unit; plural photoconductors; plural charging units; plural exposure units; plural developing units; plural first transferring units; and plural second transferring units. The intermediate transfer unit has a correction pattern image formed in a region outside of a predetermined maximum document region of the intermediate transfer unit in a direction perpendicular to the moving direction. A detector is provided in the intermediate transfer unit for detecting the correction pattern image. A correction controller is provided for correcting, based on detection results of the detector, setting values of one or more of the charging units, the exposure units, and the developing units when a region corresponding to an interval between the visible images passes a position beneath one of the one or more units.

    摘要翻译: 公开了一种图像形成装置,其能够通过在继续进行打印处理的同时修正图像可视化剂的粘附量和可见图像的位置偏移来以高精度形成全色图像。 图像形成装置包括中间转印单元; 多个感光体; 多个充电单元; 多个曝光单位; 多个发展单位 多个第一传输单元; 和多个第二转印单元。 中间转印单元具有在垂直于移动方向的方向上形成在中间转印单元的预定最大文档区域外的区域中的校正图案图像。 检测器设置在中间传送单元中,用于检测校正图案图像。 提供校正控制器,用于当与可见图像之间的间隔相对应的区域通过下方的位置时,基于检测器的检测结果来校正一个或多个充电单元,曝光单元和显影单元的设定值 一个或多个单位之一。

    IMAGE FORMING APPARATUS
    9.
    发明申请

    公开(公告)号:US20210041800A1

    公开(公告)日:2021-02-11

    申请号:US16986265

    申请日:2020-08-06

    IPC分类号: G03G15/02

    摘要: An image forming apparatus includes a photoconductor, a charger, a charge remover, and control circuitry. The charger is configured to charge the photoconductor. The charge remover is configured to remove charge from a surface of the photoconductor by light and electric discharge. The control circuitry is configured to: estimate a surface potential that the photoconductor has after the photoconductor is charged by the charger, based on a characteristic value of the photoconductor and a value of a current flowing through the charger after the charge remover removes charge from the photoconductor; and control a charging bias applied to the charger, based on the surface potential estimated.

    IMAGE FORMING APPARATUS
    10.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号:US20100080576A1

    公开(公告)日:2010-04-01

    申请号:US12570332

    申请日:2009-09-30

    IPC分类号: G03G15/08

    摘要: An image forming apparatus includes a latent image carrier, a developing unit to develop a latent image on the image carrier with developer including toner and carrier, a developer bearing member, a first detector to detect a toner adhesion amount per unit area of a toner image developed by the developing unit, a second detector to detect humidity, and a controller to calculate an index indicating toner chargeability of the carrier based on detection results of the toner adhesion amount obtained by the first detector and perform a given control process based on calculation results thereof and including a data storage unit to store an algorithm to correct the index to a specific value according to a specific humidity, based on detection results of the humidity obtained by the second detector. The controller corrects the index obtained based on the amount of toner adhesion based on the algorithm.

    摘要翻译: 图像形成装置包括潜像载体,显影单元,用于在具有调色剂和载体的显影剂的图像载体上显影潜像,显影剂承载部件,第一检测器,用于检测调色剂图像的每单位面积的调色剂附着量 由显影单元显影,第二检测器检测湿度,以及控制器,基于由第一检测器获得的调色剂附着量的检测结果,计算载体的调色剂带电性的指标,并根据计算结果进行给定的控制处理 并且包括数据存储单元,其基于由第二检测器获得的湿度的检测结果,存储根据特定湿度将索引校正到特定值的算法。 控制器基于算法校正基于调色剂附着量获得的指数。