Image recording apparatus having secondary exposure unit
    1.
    发明授权
    Image recording apparatus having secondary exposure unit 失效
    具有二次曝光单元的图像记录装置

    公开(公告)号:US5126783A

    公开(公告)日:1992-06-30

    申请号:US611837

    申请日:1990-11-13

    摘要: An image forming apparatus for forming an image on a photosensitive recording medium by exposing the photosensitive recording medium to light by way of a mask member which is placed on an exposure station. The apparatus comprises a first transport device which transports the mask member through the exposure station and a second transport device which transports the photosensitive recording medium through the exposure station. A first exposure unit irradiates light upon the photosensitive record medium by way of said mask member at the exposure station to record an image formed on the mask member on the photosensitive recording medium. Alternatively, when a mask member is not used, a second exposure unit directs light through an auxiliary member having a light-passing image thereon to project and record the light-passing image onto the photosensitive recording medium.

    摘要翻译: 一种图像形成装置,用于通过使曝光站上的掩模构件将光敏记录介质曝光而在感光记录介质上形成图像。 该装置包括通过曝光站传送掩模构件的第一传送装置和通过曝光站传送感光记录介质的第二传送装置。 第一曝光单元通过曝光站处的所述掩模构件在光敏记录介质上照射光以将形成在掩模构件上的图像记录在感光记录介质上。 或者,当不使用掩模构件时,第二曝光单元引导光通过其上具有通光图像的辅助构件来突出并将光通过图像记录在感光记录介质上。

    Image recording apparatus having device for adjusting position of mask
members
    2.
    发明授权
    Image recording apparatus having device for adjusting position of mask members 失效
    具有用于调节面罩构件位置的装置的图像记录装置

    公开(公告)号:US5079587A

    公开(公告)日:1992-01-07

    申请号:US617203

    申请日:1990-11-23

    IPC分类号: G03B27/02 G03B27/32 G03F7/00

    摘要: An image recording apparatus using a set of mask members and having mask position adjusting device. A transparent mask member supporting plate is provided at the exposure position. Each of the mask member is delivered upon the mask member supporting plate by two pairs of rollers. In this mask delivery, a mask image surface faces upwardly. An elongated photosensitive recording medium is positioned immediately above the mask member supporting plate so as to guide the medium at the exposure position. Further, an exposure device including a light source and color filters is positioned below the mask member supporting plate. The mask member undergoes positional adjustment at the exposure position. For this, the mask member supporting plate is supported on a positioning frame which is movable in a direction perpendicular to the mask member moving direction. The position of the mask member with respect to the running direction thereof is controllable by controlling rotations of two pairs of rollers, and the mask position with respect to its tranverse direction is controllable by controlling the movement of the positioning frame.

    摘要翻译: 一种使用一组掩模构件并具有掩模位置调节装置的图像记录装置。 透明掩模构件支撑板设置在曝光位置。 每个掩模构件通过两对辊被输送到掩模构件支撑板上。 在该掩模递送中,掩模图像表面向上。 细长的光敏记录介质位于掩模构件支撑板的正上方,以便将介质引导到曝光位置。 此外,包括光源和滤色器的曝光装置位于掩模构件支撑板的下方。 掩模构件在曝光位置进行位置调整。 为此,掩模构件支撑板被支撑在可沿垂直于掩模构件移动方向的方向上移动的定位框架上。 掩模构件相对于其行进方向的位置可以通过控制两对辊的旋转来控制,并且通过控制定位框架的移动来控制相对于其横向方向的掩模位置。

    Speed control apparatus having means for changing reference signal for
error signal, depending upon load applied to controlled device
    4.
    发明授权
    Speed control apparatus having means for changing reference signal for error signal, depending upon load applied to controlled device 失效
    速度控制装置具有根据施加到受控装置的负载来改变误差信号的参考信号的装置

    公开(公告)号:US5001407A

    公开(公告)日:1991-03-19

    申请号:US565961

    申请日:1990-08-13

    IPC分类号: H02P29/00 H02P7/29

    CPC分类号: H02P7/2913

    摘要: An apparatus for controlling an operating speed of an electrically controlled device including an electrically operated member. The apparatus includes an error signal generator for generating an error signal indicative of an error between an actual and a target value of the operating speed, a reference signal generator for generating a reference signal, a comparator for generating an output signal based on a result of comparison between the error and reference signals, and an energy control device for controlling an energy supplied to the electrically controlled device by controlling the duty cycle of an electric current applied to the electrically operated member such that the energy varies with the output signal of the comparator. A device is provided for changing the reference signal depending upon a load currently applied to the electrically controlled device.

    摘要翻译: 一种用于控制包括电操作构件的电控装置的操作速度的装置。 该装置包括:误差信号发生器,用于产生指示操作速度的实际值和目标值之间的误差的误差信号;用于产生参考信号的参考信号发生器;用于产生输出信号的比较器, 误差和参考信号之间的比较,以及用于通过控制施加到电操作构件的电流的占空比来控制提供给电控装置的能量的能量控制装置,使得能量随着比较器的输出信号而变化 。 提供了一种根据当前施加到电控装置上的负载来改变参考信号的装置。

    Color image recording apparatus with mask member registering mechanism
    5.
    发明授权
    Color image recording apparatus with mask member registering mechanism 失效
    具有掩模构件登记机构的彩色图像记录装置

    公开(公告)号:US4967227A

    公开(公告)日:1990-10-30

    申请号:US405434

    申请日:1989-09-11

    IPC分类号: G03B27/30 G03F7/00

    摘要: A color image recording device for forming a mask member having a positioning mask thereon and exposing a photosensitive medium through the mask member to light to form a color image on the photosensitive medium, comprising belt for carrying the mask member thereon, two belt supporting rollers spaced at an interval and independently movable in a feeding direction of the mask member and in a vertical direction thereto, stepping motors for moving the belt supporting rollers, a sensor for detecting the position of the positioning mark and a control unit for controlling the stepping motors to register the mask member. According to one aspect of this invention, the stepping motors are controlled by the control unit to change a feeding speed of the mask member at two or more stages in accordance with an output signal from the sensor by switching the excited phases of the stepping motors or by changing an electric power supplied to at least one of the stepping motors.

    摘要翻译: 一种彩色图像记录装置,用于在其上形成具有定位掩模的掩模构件,并通过掩模构件将感光介质曝光以在光敏介质上形成彩色图像,包括用于在其上承载掩模构件的带,两个带支撑辊间隔开 间隔地沿掩模构件的供给方向并且在垂直方向上独立地移动,用于移动带支撑辊的步进电机,用于检测定位标记的位置的传感器和用于控制步进电机的控制单元 注册面罩成员。 根据本发明的一个方面,步进电动机由控制单元控制,以通过切换步进电机的激励相位,根据来自传感器的输出信号来改变掩模构件的两级或更多级的馈送速度,或者 通过改变提供给至少一个步进电机的电力。

    Image forming apparatus, and pressure fogging prevention
    6.
    发明授权
    Image forming apparatus, and pressure fogging prevention 有权
    成像设备,防雾防雾

    公开(公告)号:US07558507B2

    公开(公告)日:2009-07-07

    申请号:US10388405

    申请日:2003-03-17

    IPC分类号: G03G15/00

    摘要: The pressure between a developing roller and a photosensitive drum is set to 0.24 MPa. Because the pressure is smaller than 0.31 MPa, if the potential difference ΔV between the non-image forming part on the photosensitive drum and the electrically-charged polymer toner on the surface of the developing roller is at the preset proper voltage (300 volts), pressure fogging will be prevented. Because the pressure is 0.24 MPa or less, even if the potential difference varies within the range of 200 volts to 400 volts that occurs in practice, pressure fogging will be prevented. By resetting the pressure to 0.22 MPa, even if the potential difference ΔV varies in a wider voltage range of 100 to 400 volts, pressure fogging will be prevented. In this way, by setting the pressure between the developing roller and the photosensitive drum appropriately, pressure fogging can be prevented even when using the opposite-direction developing method and polymer toner.

    摘要翻译: 显影辊和感光鼓之间的压力设定为0.24MPa。 由于压力小于0.31MPa,如果感光鼓上的非图像形成部分和显影辊表面上带电的聚合物调色剂之间的电位差DeltaV处于预设的适当电压(300伏), 防止压力起雾。 由于压力为0.24MPa以下,所以即使电位差在实际发生的200〜400V的范围内变化,也可防止压力起雾。 通过将压力重置为0.22MPa,即使电位差DeltaV在较宽的100〜400V的电压范围内变化,也可防止压力起雾。 以这种方式,通过适当地设置显影辊和感光鼓之间的压力,即使使用相反方向的显影方法和聚合物调色剂也可以防止压力起雾。

    Image forming device that performs density detection
    8.
    发明授权
    Image forming device that performs density detection 有权
    执行密度检测的图像形成装置

    公开(公告)号:US07400840B2

    公开(公告)日:2008-07-15

    申请号:US11435726

    申请日:2006-05-18

    申请人: Tomoaki Hattori

    发明人: Tomoaki Hattori

    IPC分类号: G03G15/00

    摘要: During a first rotation of a photoconductor, latent electrostatic images for color correction processing patterns are formed on the photoconductor, and the latent electrostatic images are developed into the color correction processing patterns in each of four colors, and then densities of the patterns on the photoconductor are detected. During a second rotation of the photoconductor, each color of the patterns is recovered back into a developer device.

    摘要翻译: 在光电导体的第一次旋转期间,在感光体上形成用于颜色校正处理图案的静电潜像,并且将静电潜像显影成四种颜色中的每一种中的颜色校正处理图案,然后将感光体上的图案的密度 被检测到。 在光电导体的第二次旋转期间,将图案的每种颜色回收到显影剂装置中。

    Image forming apparatus including units for recovering developing agent adhering to developing agent carriers
    9.
    发明授权
    Image forming apparatus including units for recovering developing agent adhering to developing agent carriers 有权
    图像形成装置包括用于回收附着在显影剂载体上的显影剂的单元

    公开(公告)号:US07308214B2

    公开(公告)日:2007-12-11

    申请号:US11237802

    申请日:2005-09-29

    IPC分类号: G03G15/01 G03G15/08

    摘要: An image forming apparatus includes: a plurality of development units having developing-agent carriers which are provided in correspondence to three or more developing agents, and developing electrostatic latent images on surfaces of image carriers to form developing-agent images on the image carriers; and a recovery unit that recovers the developing agent adhering to the developing-agent carrier during non-development operation. The recovery unit is provided for at least the development unit other than the development unit that transfers the developing-agent image first in sequence among the plurality of development units. When one of the plurality of development units performs development by the developing agent whose charge capability is higher than that of the developing agent of the development unit that transfers the developing-agent image later in sequence, the recovery unit starts recovery of the developing agent or performs recovery operation for improving recovery capability of the developing agent.

    摘要翻译: 图像形成装置包括:多个显影单元,具有对应于三个或更多个显影剂设置的显影剂载体,并且在图像载体的表面上显影静电潜像,以在图像载体上形成显影剂图像; 以及回收单元,其在非显影操作期间恢复附着在显影剂载体上的显影剂。 至少提供了恢复单元,除了显影单元之外的显影单元,该显影单元首先在多个显影单元之间传送显影剂图像。 当多个显影单元中的一个显影单元执行显影剂的开发时,显影剂的充电能力比依次转印显影剂图像的显影剂的显影剂的显影剂的显影剂的显影剂的显影剂高,恢复单元开始显影剂的回收或 执行用于提高显影剂的恢复能力的恢复操作。

    Tandem image forming device with reduced footprint
    10.
    发明授权
    Tandem image forming device with reduced footprint 有权
    串联成像设备,占地面积减小

    公开(公告)号:US07113199B2

    公开(公告)日:2006-09-26

    申请号:US10642205

    申请日:2003-08-18

    申请人: Tomoaki Hattori

    发明人: Tomoaki Hattori

    IPC分类号: B41J2/435 G03G15/01

    摘要: A tandem color laser printer 1 is provided with a photosensitive drum unit 15, a developing unit 14, and a scanning unit 13 for each color. The developing units 14, each including a main developer unit 25 and a toner hopper 24, and the scanning units 13, which irradiate laser beam, are alternately stacked vertically to overlap with each other in the vertical direction. This arrangement eliminates space required when arranging the developing units 14 and scanning units 13 side by side, thereby reducing the footprint of the color laser printer 1.

    摘要翻译: 串联式彩色激光打印机1具有用于各种颜色的感光鼓单元15,显影单元14和扫描单元13。 包括主显影剂单元25和调色剂料斗24的显影单元14和照射激光束的扫描单元13在垂直方向上交替堆叠以彼此重叠。 这种布置消除了并排布置显影单元14和扫描单元13所需的空间,从而减少了彩色激光打印机1的占地面积。