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    FAULT DETECTION
    1.
    发明公开
    FAULT DETECTION 审中-公开
    FEHLERERKENNUNG

    公开(公告)号：EP3129834A1

    公开(公告)日：2017-02-15

    申请号：EP14716806.6

    申请日：2014-04-09

    申请人： Hewlett-Packard Indigo B.V.

    发明人： SHKURI, Kobi ,  MOALEM, Sasi ,  KAHATABI, Rafael

    IPC分类号： G03G15/00

    CPC分类号： G03G15/5033 ,  G03G15/55 ,  G03G15/752

    摘要： According to one example, there is provided apparatus for detecting a fault in a printing system. The apparatus comprises a monitoring module to determine the length of a portion of an imaging member as the imaging member rotates; and indicate a fault condition when the determined length is different to a reference length.

    摘要翻译： 根据一个示例，提供了用于检测打印系统中的故障的装置。 该装置包括监测模块，用于当成像构件旋转时确定成像构件的一部分的长度; 并且当所确定的长度与参考长度不同时指示故障状况。

    Method of controlling optical power of laser scanning unit and image forming apparatus for performing the method
    2.
    发明公开
    Method of controlling optical power of laser scanning unit and image forming apparatus for performing the method 审中-公开
    一种用于控制激光扫描单元的光功率和用于执行该方法的图像形成设备的方法

    公开(公告)号：EP2876500A1

    公开(公告)日：2015-05-27

    申请号：EP14188363.7

    申请日：2014-10-09

    申请人： Samsung Electronics Co., Ltd

    发明人： Kim, Su-whan

    IPC分类号： G03G15/00

    CPC分类号： B41J2/47 ,  G03G15/5033 ,  G03G15/5037 ,  G03G15/5041

    摘要： An image forming apparatus may include a laser scanning unit which irradiates light to a photosensitive body to form an image; a feedback information provision unit which provides feedback information used to control optical power of the laser scanning unit; and a main controller which controls the optical power of the laser scanning unit by adjusting a voltage that is applied to the laser scanning unit by using the feedback information. The main controller performs primary optical power control by comparing a density of a sample patch formed on the photosensitive body by the laser scanning unit, the density received from the feedback information provision unit, with a target density that is previously stored and performs secondary optical power control by comparing a feedback voltage received from the feedback information provision unit with the target voltage obtained during the primary optical power control.

    摘要翻译： 一种图像形成装置可以包括：激光扫描单元，其照射光至感光体以形成图像; 反馈信息提供单元，其提供用于控制激光扫描单元的光功率的反馈信息; 并且通过调整电压控制激光扫描单元的光功率的主控制器并通过使用反馈信息施加到激光扫描单元。 主控制器通过比较由激光扫描单元将形成在感光体上的样品贴片的密度执行主光功率控制，从反馈信息提供单元接收到的密度，与目标密度没有被预先存储，并且执行二次光功率 通过比较从所述反馈信息提供单元接收到的与所述主光功率控制过程中获得的目标电压的反馈电压控制。

    Light emission control device, light emission control method, and image forming apparatus
    4.
    发明公开
    Light emission control device, light emission control method, and image forming apparatus 有权
    Lichtemissionssteuervorrichtung，Lichtemissionssteuerverfahren und Bilderzeugungsvorrichtung

    公开(公告)号：EP2463108A1

    公开(公告)日：2012-06-13

    申请号：EP11191798.5

    申请日：2011-12-02

    申请人： Ricoh Company, Ltd.

    发明人： Yokoyama, Takuhei ,  Kinoshita, Izumi ,  Komai, Kunihiro ,  Miyadera, Tatsuya ,  Shirasaki, Yoshinori ,  Shikama, Takeshi ,  Yamaguchi, Akinori

    IPC分类号： B41J2/45 ,  G03G15/043 ,  G03G21/14

    CPC分类号： B41J2/45 ,  G03G15/04054 ,  G03G15/043 ,  G03G15/5008 ,  G03G15/5033 ,  G03G15/505 ,  G03G21/145 ,  G03G2215/0132 ,  G03G2215/0409

    摘要： A light emission control device (2) images an electrostatic latent image on a photosensitive element (109) by a plurality of light emitting elements (111) corresponding to a line in a second direction perpendicular to a first direction which is a rotational direction the photosensitive element. The light emission control device includes: a detecting unit (301) that detects a rotational position of the photosensitive element, in the first direction, corresponding to a line in the second direction; an acquiring unit that acquires a distance between the light emitting elements and the rotational position of the photosensitive element in the first direction detected by the detecting unit; and a control unit (305) that controls light emission by the light emitting elements according to the distance acquired by the acquiring unit and corrects a fluctuation in a density of a visible image converted from the electrostatic latent image.

    摘要翻译： 发光控制装置（2）通过与作为旋转方向的第一方向垂直的第二方向上的线对应于多个发光元件（111）将感光元件（109）上的静电潜像图像感光 元件。 发光控制装置包括：检测单元，其在与第二方向上的线对应的第一方向上检测感光元件的旋转位置; 获取单元，其获取由所述检测单元检测到的所述发光元件与所述感光元件在所述第一方向上的旋转位置之间的距离; 以及控制单元（305），其根据由所述获取单元获取的距离来控制所述发光元件的发光，并校正从所述静电潜像转换的可见图像的浓度的波动。

    Image forming apparatus
    5.
    发明公开
    Image forming apparatus 审中-公开
    成像设备

    公开(公告)号：EP2388652A2

    公开(公告)日：2011-11-23

    申请号：EP11166219.3

    申请日：2011-05-16

    申请人： CANON KABUSHIKI KAISHA

    发明人： Ino, Koichiro ,  Kodama, Hirokazu ,  Sugeta, Mitsuhiro ,  Oonuma, Takahiro

    IPC分类号： G03G15/00 ,  G03G15/01

    CPC分类号： G03G15/0189 ,  G03G15/0131 ,  G03G15/5033 ,  G03G15/5058 ,  G03G21/203 ,  G03G2215/00059 ,  G03G2215/00063 ,  G03G2215/0129 ,  G03G2215/0161

    摘要： A low density area is caused at a trailing edge of an image formed on a photosensitive drum. This low density area is less likely to be caused when the density of the image is higher and the humidity is lower. To prevent generation of such low density area, if a color misregistration detection toner pattern having a high density is formed, in a low humidity environment, an excessively large amount of toner is consumed unnecessarily. In response, the density of the color misregistration detection toner pattern is adjusted based on the humidity.

    摘要翻译： 在形成于感光鼓上的图像​​的后缘处引起低密度区域。 当图像密度较高且湿度较低时，这种低密度区域不太可能引起。 为了防止产生这种低密度区域，如果形成具有高密度的颜色重合失调检测调色剂图案，则在低湿度环境下，过量消耗的调色剂被不必要地消耗。 作为响应，基于湿度来调节套色不准检测调色剂图案的密度。