Optical encoder
    1.
    发明授权
    Optical encoder 失效
    光学编码器

    公开(公告)号:US06803560B1

    公开(公告)日:2004-10-12

    申请号:US09588549

    申请日:2000-06-07

    IPC分类号: G01D534

    CPC分类号: G01D5/38

    摘要: An optical encoder has a light irradiating device; an optical scale having a grating for transmitting or reflecting incident light; light-receiving elements disposed in a plurality of different directions; and an optical system for amplitude-modulating light traveling from the light irradiating device to the optical scale and transmitted or reflected by the grating, by a dividing element in which a plurality of V-shaped grooves are juxtaposed, and for dividing the amplitude-modulated light into beams along a plurality of different directions to guide the beams to the respective light-receiving elements. The dividing element is comprised of repetitions of such structure that a plurality of V-grooves consisting of planes of mutually different angles are juxtaposed at a predetermined pitch.

    摘要翻译: 光学编码器具有光照射装置; 具有用于透射或反射入射光的光栅的光学刻度; 设置在多个不同方向的光接收元件; 以及光学系统,用于通过其中并置有多个V形槽的分割元件将从光照射装置传播到光刻尺的光进行幅度调制,并由光栅传播或反射,并用于将幅度调制 沿着多个不同方向将光束导入光束以将光束引导到相应的光接收元件。 分割元件由这样的结构的重复组成,即由以相互不同的角度的平面组成的多个V形槽以预定间距并置。

    Rotation angle detecting apparatus and its rotary disc
    2.
    发明授权
    Rotation angle detecting apparatus and its rotary disc 失效
    旋转角度检测装置及其旋转盘

    公开(公告)号:US06901682B2

    公开(公告)日:2005-06-07

    申请号:US10147130

    申请日:2002-05-15

    IPC分类号: G01D5/36 G01D5/347 G01D21/00

    CPC分类号: G01D5/3473 G01D5/34707

    摘要: A rotary disc made of synthetic resin has a fixed portion fixed to a rotary shaft, a cylindrical portion extending in the thrust direction from the outer peripheral edge of the fixed portion, and a disc main body portion extending in the radial direction from the lower portion of the cylindrical portion, and a scale portion for detecting the rotation angle is disposed on the underside of the disc main body portion. Among the coefficient of thermal expansion α1 of the rotary disc, the coefficient of thermal expansion α2 of the rotary shaft, the temperature characteristic factor β of a sensor head, the distance H between a mounting reference surface and the light condensing point of the sensor head in the thrust direction, the distance L from the fixed point of the rotary shaft and a bearing to the fixed point of the rotary shaft and the rotary disc in the thrust direction, the distance S between the fixed point and the scale portion for rotation angle detection in the thrust direction, and the amount of change ΔT of temperature, a relational expression β×H×ΔT=(α2×L+α1×S)×ΔT and a relational expression L=H+S are established to thereby construct a rotation angle detecting apparatus which is hardly affected by any temperature change.

    摘要翻译: 由合成树脂制成的旋转盘具有固定到旋转轴的固定部分,从固定部分的外周缘沿推力方向延伸的圆筒部分,以及从主体部分的下部延伸的盘主体部分 并且用于检测旋转角度的标尺部分设置在盘主体部分的下侧。 在旋转盘的热膨胀系数α1,旋转轴的热膨胀系数α2,传感器头的温度特性因数β,安装基准表面和传感器的聚光点之间的距离H 在推力方向上的头部,距旋转轴的固定点的距离L和轴承到推力方向上的旋转轴和旋转盘的固定点,固定点和旋转刻度部分之间的距离S 推测方向上的角度检测和温度变化量DeltaT,关系式betaxHxDeltaT =(α2xL+α1xS)xDeltaT和关系式L = H + S建立,从而构成旋转角度检测装置, 几乎不受任何温度变化的影响。

    Image recording apparatus and method for recording an image on a recording medium
    3.
    发明授权
    Image recording apparatus and method for recording an image on a recording medium 失效
    用于在记录介质上记录图像的图像记录装置和方法

    公开(公告)号:US07556345B2

    公开(公告)日:2009-07-07

    申请号:US11103576

    申请日:2005-04-12

    IPC分类号: B41J29/38 B41J2/145 B41J2/15

    摘要: An image recording apparatus records an image on a recording medium by causing a recording head having an arrangement of a plurality of recording elements to conduct its main scanning for the recording medium interrelatedly in the direction opposite to the arrangement of the recording elements. The apparatus comprises a setting device to set the number of main scannings by the recording head; a main scanning device to perform recording by plural numbers of main scannings with respect to one pixel by causing the recording head to conduct its main scannings for the same recording area of the recording medium in accordance with the number set by the setting device; and a sub-scanning device to cause the recording head and the recording medium to be sub-scanned interrelatedly per main scanning in an amount smaller than the width of the arrangement of the recording elements of the recording head. Hence, even if a disabled ejection occurs in one scanning at the time of recording by a multi-scanning, the missing dot is complemented by the following scan to make it possible to obtain an image having no image defects at all times.

    摘要翻译: 图像记录装置通过使具有多个记录元件的布置的记录头在与记录元件的布置相反的方向上相互关联地进行记录介质的主扫描,将图像记录在记录介质上。 该装置包括:设置装置,用于设定记录头的主扫描次数; 主扫描装置,通过使记录头根据由设定装置设定的号码对记录介质的相同记录区域进行主扫描,通过多个主扫描执行相对于一个像素的记录; 以及副扫描装置,用于使记录头和记录介质以相对于记录头的记录元件的布置的宽度的量的主扫描相互相关地副扫描。 因此,即使在通过多次扫描的记录时的一次扫描中发生禁用的喷射,通过以下扫描补充丢失的点,使得可以始终获得没有图像缺陷的图像。

    Image printing apparatus and image printing method
    4.
    发明授权
    Image printing apparatus and image printing method 有权
    图像打印装置和图像打印方法

    公开(公告)号:US06435643B1

    公开(公告)日:2002-08-20

    申请号:US09219893

    申请日:1998-12-24

    IPC分类号: B41J29393

    摘要: A density difference correction signal is generated for correcting a density difference upon forward path printing and backward path printing by density difference correction signal generating apparatus to store the generated density difference correction signal in an unevenness correction RAM. A predetermined correction line in a HS table memory is selected depending upon the density difference correction signal. By the selected correction line, the density correction of the image data of forward path printing and backward path printing is performed to output the image data.

    摘要翻译: 产生浓度差校正信号,用于通过密度差校正信号发生装置在正向路径打印和反向路径打印时校正浓度差,以将生成的浓度差校正信号存储在不均匀校正RAM中。 根据密度差校正信号来选择HS表存储器中的预定校正线。 通过选择的校正线,执行前向路径打印和反向路径打印的图像数据的浓度校正以输出图像数据。

    Apparatus and method for manufacturing ink jet printed products and ink
jet printed products manufactured using the method
    5.
    发明授权
    Apparatus and method for manufacturing ink jet printed products and ink jet printed products manufactured using the method 失效
    用于制造使用该方法制造的喷墨印刷产品和喷墨印刷产品的装置和方法

    公开(公告)号:US6142619A

    公开(公告)日:2000-11-07

    申请号:US702859

    申请日:1996-08-26

    摘要: An object is to provide ink jet printed products superior in the image quality such that ink jet printing onto the cloths satisfy the various conditions regarding the density, resolution, and graininess of dot. To accomplish this object, when an image is formed by a number of dots obtained by discharging the ink from a print head to attach the ink onto the cloths, the ink amount discharged from the printing head onto the cloths is controlled to produce ink jet printed products so that the average value of equivalent circle diameter for each dot after image formation may be three-fourths or less the average value of diameters of fibers constituting the cloths. Thereby, ink jet printed products excellent in image quality can be obtained with blurs reduced and high graininess of dot.

    摘要翻译: 目的在于提供优异的图像质量的喷墨打印产品,使得在布上的喷墨印刷满足关于点的密度,分辨率和颗粒度的各种条件。 为了实现该目的,当通过从打印头排出油墨而获得的多个点形成图像以将油墨附着到布上时,将从打印头排出的油墨量控制在布上以产生喷墨打印 使得图像形成后的每个点的当量圆直径的平均值可以是构成布的纤维的直径的平均值的四分之三。 由此,可以获得图像质量优异的喷墨打印产品,模糊减少和点纹理性高。

    Fluid-jet recording apparatus and method in which fluid-jet head heating
is controlled
    7.
    发明授权
    Fluid-jet recording apparatus and method in which fluid-jet head heating is controlled 失效
    流体喷射记录装置和控制流体喷头加热的方法

    公开(公告)号:US5771049A

    公开(公告)日:1998-06-23

    申请号:US338836

    申请日:1994-11-14

    IPC分类号: B41J2/01 B41J2/05 B41J2/175

    摘要: An ink-jet printer for printing an imaging using an ink-jet head has a heater for holding the temperature of the ink-jet head above a predetermined temperature. The temperature of the ink-jet head is held above the predetermined temperature at the time of a recording operation. When the recording operation ends, elapsed time from the end of recording is measured and, when elapsed time attains a predetermined time, current fed to the header is stopped. From this point onward, the temperature of the ink-jet head is held at a temperature below that which prevails at the time of recording until the next recording operation begins.

    摘要翻译: 用于使用喷墨头打印成像的喷墨打印机具有用于将喷墨头的温度保持在预定温度以上的加热器。 在记录操作时,喷墨头的温度保持在预定温度以上。 当记录操作结束时,测量从记录结束起的经过时间,并且当经过时间达到预定时间时,停止馈送到报头的电流。 从这一点开始,喷墨头的温度保持在低于记录时所占的温度,直到下一个记录操作开始。

    Image forming apparatus having transfer material carrying member with
specific resistance ratio
    10.
    发明授权
    Image forming apparatus having transfer material carrying member with specific resistance ratio 失效
    具有比电阻率的转印材料承载元件的图像形成装置

    公开(公告)号:US5410390A

    公开(公告)日:1995-04-25

    申请号:US26780

    申请日:1993-03-05

    IPC分类号: G03G15/01 G03G15/16 G03G15/14

    CPC分类号: G03G15/1635

    摘要: An image forming apparatus includes image bearing member; a toner image forming device for forming a toner image on the image bearing member; a transfer material carrying member carrying a transfer material; a transfer charging member for transferring the toner image from the image bearing member onto a transfer material carried on the transfer material carrying member, the transfer charging member being contactable to a backside of the transfer material carrying member not contactable to the transfer material; wherein (.alpha..sub.B +.alpha..sub.C).alpha..sub.B .ltoreq.100 is satisfied where .alpha..sub.B is a resistance of the transfer charging member, and .alpha..sub.C is a constant resistance between the transfer charging member and the transfer material carrying member.

    摘要翻译: 图像形成装置包括图像承载部件; 调色剂图像形成装置,用于在图像承载部件上形成调色剂图像; 承载转印材料的转印材料承载构件; 用于将调色剂图像从图像承载部件转印到承载在转印材料承载部件上的转印材料上的转印充电部件,转印充电部件可接触到不能与转印材料接触的转印材料承载部件的背面; 其中αB是转印充电元件的电阻,αC是转印充电元件和转印材料承载元件之间的恒定电阻,则满足(αB +αC)αB <100。