Sheet length measurement apparatus and image forming apparatus
    4.
    发明授权
    Sheet length measurement apparatus and image forming apparatus 有权
    片材长度测量装置和图像形成装置

    公开(公告)号:US08131171B2

    公开(公告)日:2012-03-06

    申请号:US12706069

    申请日:2010-02-16

    IPC分类号: G03G15/00

    摘要: A sheet length measurement apparatus including: a rotating member that comes in contact with a recording sheet conveyed on a conveying path, and rotates along with the conveyance of the recording sheet; a rotation amount detector that detects a rotational amount of the rotating member; a fixing support member that fixedly supports an rotating shaft of the rotating member at a fixed position; an opposed member that is disposed opposite to the rotating member so as to hold the recording sheet between the rotating member and the opposed member, the opposed member being disposed so that the rotating member rotates along with the conveyance of the recording sheet; and a support member that supports the opposed member in a movable state in a direction to separate from or come in contact with a surface of the recording sheet.

    摘要翻译: 一种纸张长度测量装置,包括:旋转构件,其与在输送路径上传送的记录纸张接触,并与记录纸张的传送一起旋转; 旋转量检测器,检测旋转构件的旋转量; 固定支撑构件,其在固定位置固定地支撑所述旋转构件的旋转轴; 与所述旋转部件相对配置以将所述记录纸张保持在所述旋转部件和所述相对部件之间的相对部件,所述相对部件配置成使得所述旋转部件与所述记录纸张的输送一起旋转; 以及支撑构件,其在与记录片材的表面分离或与记录片材的表面接触的方向上以可移动状态支撑相对构件。

    Sheet feed device and image forming apparatus
    6.
    发明授权
    Sheet feed device and image forming apparatus 有权
    送纸装置和成像装置

    公开(公告)号:US07392980B2

    公开(公告)日:2008-07-01

    申请号:US11505400

    申请日:2006-08-17

    IPC分类号: B65H3/52

    摘要: A sheet feed device includes: a conveyor roller that rotates in a first direction; a separation roller rotatable in a second, reverse to the first direction, that nips a sheet with the conveyor roller; a sheet detector provided at a detecting position to detect a number of sheets; a pressure generator that generates a pressure to press the separation roller against the conveyor roller; a separation torque generator that generates a separation torque to convey the sheet on the separation roller in the second direction; and a controller that, if two or more sheets are detected, applies the pressure and/or the separation torque to the separation roller to separate the sheets until the detected number of sheets is decreased to be one, and that, after the number of sheets becomes one, controls the pressure and/or the separation torque to adjust a position of the sheet on the separation roller to a target position.

    摘要翻译: 送纸装置包括:沿第一方向旋转的输送辊; 分离辊,其可以与第一方向相反的第二转动,其与输送辊压接纸张; 纸张检测器,设置在检测位置以检测纸张的数量; 压力发生器,其产生将分离辊压靠在输送辊上的压力; 分离转矩发生器,其产生分离转矩,以在第二方向上将片材输送到分离辊上; 以及控制器,如果检测到两张或多张纸张,则将压力和/或分离扭矩施加到分离辊以分离纸张,直到检测到的纸张数量减少为1,并且在纸张数量之后 成为一个,控制压力和/或分离扭矩以将分离辊上的片材的位置调整到目标位置。

    Position detection apparatus, paper thickness detection apparatus, belt position detection apparatus, and image forming apparatus
    7.
    发明授权
    Position detection apparatus, paper thickness detection apparatus, belt position detection apparatus, and image forming apparatus 有权
    位置检测装置,纸张厚度检测装置,带位置检测装置和图像形成装置

    公开(公告)号:US08706018B2

    公开(公告)日:2014-04-22

    申请号:US12268059

    申请日:2008-11-10

    IPC分类号: G03G15/00 B65H7/02 B65H7/14

    CPC分类号: G03G15/6511

    摘要: A position detection apparatus includes: a moving member in contact with a detection object that moves following movement of the detection object; and a support member that rotatably supports the moving member; a detection unit that detects a positional change of the moving member, the moving member being acted on by a first force as a force to press the moving member against the detection object, a second force as a force to press the moving member substantially in a direction of a rotation shaft of the moving member, and a third force as a force to press the moving member in a direction substantially orthogonal to the direction of the rotation shaft of the moving member.

    摘要翻译: 一种位置检测装置,包括:移动部件,其与检测对象物接触,随着检测对象的移动而移动; 以及支撑构件,其可旋转地支撑所述移动构件; 检测单元,其检测所述移动构件的位置变化,所述移动构件通过第一力作用作为将所述移动构件压靠在所述检测对象上的力,第二力作为基本上按压所述移动构件的力 移动构件的旋转轴的方向,以及作为在与移动构件的旋转轴的方向大致正交的方向上按压移动构件的力的第三力。

    Information processor, image forming apparatus, information processing method, and non-transitory computer-readable medium
    8.
    发明授权
    Information processor, image forming apparatus, information processing method, and non-transitory computer-readable medium 有权
    信息处理器,图像形成装置,信息处理方法和非暂时计算机可读介质

    公开(公告)号:US08588632B2

    公开(公告)日:2013-11-19

    申请号:US13209797

    申请日:2011-08-15

    IPC分类号: G03G15/23 G03G21/20

    摘要: An information processor includes a storage unit storing a first coefficient in correspondence with a characteristic of a sheet of paper, a first acquisition unit acquiring a first signal based on the water content of a first sheet of paper not having an image formed thereon, a second acquisition unit acquiring a second signal based on the water content of the first sheet of paper having an image formed thereon and being heated for fixing, a determination unit determining the characteristic of the first sheet of paper, a first calculation unit calculating a variation in water content of the first sheet of paper using the difference between the first signal and the second signal and the first coefficient stored in correspondence with the determined characteristic, and a second calculation unit calculating an expansion and contraction ratio of the first sheet of paper using the variation in water content.

    摘要翻译: 信息处理器包括存储单元,其存储与纸张的特性对应的第一系数,第一获取单元基于不具有形成在其上的图像的第一张纸的含水量获取第一信号;第二采集单元, 获取单元基于其上形成有图像的第一张纸的含水量获取第二信号并被加热用于定影;确定单元,确定第一张纸的特性;计算水的变化的第一计算单元 使用第一信号和第二信号之间的差异和与确定的特性相对应地存储的第一系数的第一张纸的内容,以及第二计算单元,使用该变化来计算第一张纸的展开和收缩比 含水量。

    Abnormality detecting device for rotation body and image forming apparatus
    9.
    发明授权
    Abnormality detecting device for rotation body and image forming apparatus 有权
    用于旋转体和图像形成装置的异常检测装置

    公开(公告)号:US08427666B2

    公开(公告)日:2013-04-23

    申请号:US12868319

    申请日:2010-08-25

    摘要: An abnormality detecting device for a rotation body includes: a rotation body rotating while coming in contact with a sheet transported at a predetermined speed; an output unit outputting pulses of a number in proportion to a rotation amount of the rotation body; an acquisition unit acquiring periodic information associating a position of the rotation body during a single rotation and a period of each of the pulses corresponding to the position with each other, the periodic information being acquired based on the plural pulses outputted from the output unit along with the rotation of the rotation body at the predetermined speed; a memory storing the periodic information as reference periodic information; and an abnormality detector detecting an abnormality occurred in at least one of the rotation body and the output unit based on the reference periodic information and new periodic information acquired after the reference periodic information is acquired.

    摘要翻译: 用于旋转体的异常检测装置包括:旋转体,与以预定速度传送的片材接触而旋转; 输出单元,其输出与旋转体的旋转量成比例的数字的脉冲; 获取单元,获取将单个旋转期间的旋转体的位置与对应于该位置的每个脉冲的周期相关联的周期性信息,基于从输出单元输出的多个脉冲获取周期性信息,以及 旋转体以预定速度旋转; 存储周期性信息作为参考周期信息的存储器; 以及异常检测器,其基于参考周期信息和在获取参考周期信息之后获取的新的周期性信息来检测在所述旋转体和所述输出单元中的至少一个中发生的异常。

    Sheet measuring apparatus and image forming apparatus
    10.
    发明授权
    Sheet measuring apparatus and image forming apparatus 有权
    纸张测量装置和图像形成装置

    公开(公告)号:US08292295B2

    公开(公告)日:2012-10-23

    申请号:US13091815

    申请日:2011-04-21

    IPC分类号: B65H7/02

    摘要: A sheet measuring apparatus includes a first rotating member that includes a first peripheral surface portion that contacts a transported sheet; a second rotating member that includes a second peripheral surface portion made of a material different from that of the first peripheral surface portion, the second peripheral surface contacting the first peripheral surface portion and not contacting the sheet; a first rotation amount detecting unit that detects a first rotation amount that is a rotation amount of the first rotating member; a second rotation amount detecting unit that detects a second rotation amount that is a rotation amount of the second rotating member, the second rotation amount being used for a calculation related to the transported sheet; and a fault detecting unit that detects a fault that has occurred in the first rotating member on the basis of the first rotation amount and the second rotation amount.

    摘要翻译: 一种纸张测量装置,包括:第一旋转构件,其包括接触被输送的纸张的第一周边表面部分; 第二旋转构件,包括由与第一周面部不同的材料制成的第二周面部,第二周面与第一周面部接触而不与片接触; 第一旋转量检测单元,其检测作为第一旋转构件的旋转量的第一旋转量; 第二旋转量检测单元,其检测作为所述第二旋转构件的旋转量的第二旋转量,所述第二旋转量用于与所运送的薄片相关的计算; 以及故障检测单元,其基于第一旋转量和第二旋转量来检测在第一旋转构件中发生的故障。