Method and apparatus for positioning a writing assembly of an image processing apparatus
    61.
    发明授权
    Method and apparatus for positioning a writing assembly of an image processing apparatus 有权
    用于定位图像处理装置的书写组件的方法和装置

    公开(公告)号:US06249300B1

    公开(公告)日:2001-06-19

    申请号:US09354005

    申请日:1999-07-15

    IPC分类号: B41J25304

    CPC分类号: B41J19/205

    摘要: An image processing apparatus (10) comprises an imaging drum (300) for holding print media (32) and donor material (36) in registration on the imaging drum (300). A print head (500), driven by a lead screw (250) and stepper motor, moves along a line parallel to a longitudinal axis (X) of the imaging drum (300) as the imaging drum (300) rotates. The print head (500) is brought repeatably to a mechanical registration position using sensors. For coarse positioning, the print head (500) is moved to a first linear sensor position, with the drive motor operated in full-step mode. For fine positioning, the drive motor is then operated in microstepping mode, during which a second sensor detects rotational orientation by detecting a rotational indicator mounted on the lead screw (250). The rotational indicator permits straightforward adjustment for fine-tuning, being adjustable to any one of a number of fixed positions relative to lead screw rotation.

    摘要翻译: 一种图像处理装置(10)包括用于保持印刷介质(32)和成像鼓(300)对准的供体材料(36)的成像鼓(300)。 当成像鼓(300)旋转时,由导螺杆(250)和步进电机驱动的打印头(500)沿平行于成像鼓(300)的纵向轴线(X)的线移动。 使用传感器将打印头(500)重复地带到机械配准位置。 对于粗略定位,打印头(500)移动到第一线性传感器位置,驱动电机以全步模式运行。 为了精细定位,驱动电机然后在微步进模式下操作,在此期间,第二传感器通过检测安装在导螺杆(250)上的旋转指示器来检测旋转方位。 旋转指示器允许微调的简单调整,可以相对于导螺杆旋转的多个固定位置中的任何一个调节。

    Method for changing focus and angle of a multichannel printhead
    62.
    发明授权
    Method for changing focus and angle of a multichannel printhead 失效
    改变多通道打印头的焦点和角度的方法

    公开(公告)号:US06232999B1

    公开(公告)日:2001-05-15

    申请号:US09344917

    申请日:1999-06-25

    IPC分类号: B41J1514

    CPC分类号: B41J2/442 B41J29/393

    摘要: The present invention is for a method for adjusting a focus of a multichannel printhead (500) for an imaging processing apparatus (10) performing the steps of establishing a home focus position and moving the printhead (500) in a first direction a predetermined number of coarse density. The printhead (500) is moved to the coarse focus position and then moved in a second direction a predetermined number of fine steps. A series of second test patches is printed on the media (32) at each of the fine steps. A fine focus position is determined by checking a fine density of each of the second test patches and selecting the fine focus position corresponding to the second test patch having a highest fine density.

    摘要翻译: 本发明是一种用于调整成像处理设备(10)的多通道打印头(500)的焦点的方法,该成像处理设备执行以下步骤:建立家庭对焦位置,并将打印头(500)沿第一方向移动预定数量的 粗密度。 打印头(500)移动到粗焦点位置,然后沿第二方向移动预定数量的精细步骤。 在每个精细步骤中,在介质(32)上印刷一系列第二测试贴片。 通过检查每个第二测试片的精细密度并选择与具有最高精细密度的第二测试片相对应的精细对焦位置来确定精细对焦位置。

    Printer with media supply spool adapted to sense type of media, and
method of assembling same
    63.
    发明授权
    Printer with media supply spool adapted to sense type of media, and method of assembling same 有权
    具有适于感测介质类型的介质供应卷筒的打印机及其组装方法

    公开(公告)号:US06099178A

    公开(公告)日:2000-08-08

    申请号:US133114

    申请日:1998-08-12

    摘要: A printer with media supply spool adapted to sense type of media, and method of assembling same. A supply spool to be loaded into the printer is adapted to allow the printer to sense type of a media ribbon thereon. The supply spool comprises a shaft having a supply of media ribbon wound thereabout. A transceiver unit is disposed proximate the shaft. The transceiver is capable of transmitting a first electromagnetic field and sensing a second electromagnetic field. A transponder including a semi-conductor chip is integrally connected to the shaft and has encoded data previously stored therein indicative of the type of media ribbon. The chip is capable of receiving the first electromagnetic field to power the chip and then generating the second electromagnetic field as the chip is powered. The second electromagnetic field is characteristic of the data previously stored in the chip. The transceiver unit senses the second electromagnetic field, which second electromagnetic field has the data subsumed in the chip. The printer then operates in accordance with the data sensed by the transceiver to produce quality prints consistent with the type of donor being used.

    摘要翻译: 具有适于感测介质类型的介质供应卷筒的打印机及其组装方法。 要装入打印机的供应卷轴适于允许打印机检测其上的介质带的类型。 供应卷轴包括一个轴,该轴具有缠绕在其上的介质带的供应。 收发器单元设置在轴附近。 收发器能够发射第一电磁场并感测第二电磁场。 包括半导体芯片的应答器一体地连接到轴上,并且已经编码了之前存储的指示介质带类型的数据。 芯片能够接收第一电磁场来为芯片供电,然后在芯片供电时产生第二电磁场。 第二电磁场是先前存储在芯片中的数据的特征。 收发器单元感测第二电磁场,该第二电磁场具有包含在芯片中的数据。 然后,打印机根据收发器感测的数据进行操作,以产生与使用的供体类型一致的质量打印。

    Laser diode controller
    64.
    发明授权
    Laser diode controller 失效
    激光二极管控制器

    公开(公告)号:US5966394A

    公开(公告)日:1999-10-12

    申请号:US866437

    申请日:1997-05-30

    摘要: A laser diode controller (30) having a constant current source (60) which supplies current to a laser diode (90) is disclosed. A current shunt switch (40) directs current to either the laser diode (90) or to a bypass circuit (42). A thermal compensator (70) alters a current level of the constant current source (60) as a function of on-time of the laser diode (90) to compensate for changes in optical power conversion efficiency due to temperature changes in the laser diode. A thermo electric cooler controller (80) maintains a constant temperature of a substrate on which the laser diode is mounted. In one embodiment, an array of sample and hold amplifiers (50) eliminates a need for multiple DACs.

    摘要翻译: 公开了一种具有向激光二极管(90)提供电流的恒流源(60)的激光二极管控制器(30)。 电流分流开关(40)将电流引导到激光二极管(90)或旁路电路(42)。 热补偿器(70)根据激光二极管(90)的导通时间来改变恒流源(60)的电流水平,以补偿由于激光二极管的温度变化引起的光功率转换效率的变化。 热电冷却器控制器(80)保持其上安装有激光二极管的基板的恒定温度。 在一个实施例中,采样和保持放大器阵列(50)消除了对多个DAC的需要。