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12 条记录 (耗时 0.023 秒)

    Image forming apparatus with laser calibration during ramp-up period of an optical device
    3.
    发明授权
    Image forming apparatus with laser calibration during ramp-up period of an optical device 失效
    在光学装置的上升期间具有激光校准的图像形成装置

    公开(公告)号：US5864355A

    公开(公告)日：1999-01-26

    申请号：US821595

    申请日：1997-03-20

    申请人： Craig Palmer Bush ,  Cyrus Bradford Clarke ,  David Brian Langer ,  Phillip Byron Wright

    发明人： Craig Palmer Bush ,  Cyrus Bradford Clarke ,  David Brian Langer ,  Phillip Byron Wright

    IPC分类号： B41J2/47 ,  G06K15/12 ,  H04N1/40 ,  G01D9/42

    CPC分类号： G06K15/1209 ,  B41J2/471 ,  H04N1/40037 ,  G03G15/0435 ,  G03G2215/025 ,  G03G2215/0402

    摘要： The invention is directed to a method of calibrating a laser in an electrophotographic image forming apparatus used for producing a print image on a print medium. A laser having a selectively energizable laser beam output is provided. A rotatable optical device and the laser combine to define a movable projection path of the laser beam output. Rotation of the optical device results in movement of the projection path across a scan line overlaying a photoconductive drum. The optical device has a rotational acceleration upon initial rotation thereof with a ramp-up period during which the rotational velocity increases. A safe area is established in a portion of the scan line which does not overlay an image area on the photoconductive drum. The laser is energized and calibrated when the projection path is positioned in the safe area. The calibration is carried out during the ramp-up period of the rotating optical device.

    摘要翻译： 本发明涉及一种用于在用于在打印介质上产生打印图像的电子照相图像形成装置中校准激光的方法。 提供具有选择性激励激光束输出的激光器。 可旋转光学装置和激光器组合以限定激光束输出的可移动投影路径。 光学装置的旋转导致投影路径跨越覆盖感光鼓的扫描线的移动。 光学装置在初始旋转时具有旋转加速度，其中旋转速度增加的斜坡上升期间。 在扫描线的一部分上建立安全区域，该区域不覆盖感光鼓上的图像​​区域。 当投影路径位于安全区域时，激光器通电并进行校准。 在旋转光学装置的上升期间进行校准。

    Method and apparatus for automatically determining the style printhead installed in a laser printer
    4.
    发明授权
    Method and apparatus for automatically determining the style printhead installed in a laser printer 失效
    用于自动确定安装在激光打印机中的样式打印头的方法和装置

    公开(公告)号：US5877798A

    公开(公告)日：1999-03-02

    申请号：US821832

    申请日：1997-03-21

    申请人： Cyrus Bradford Clarke ,  David Brian Langer ,  Phillip Byron Wright

    发明人： Cyrus Bradford Clarke ,  David Brian Langer ,  Phillip Byron Wright

    IPC分类号： B41J2/44 ,  B41J2/47 ,  G02B26/10 ,  G06K15/12 ,  B41J2/235

    CPC分类号： B41J2/471 ,  G06K15/1204 ,  B41J2202/17

    摘要： A laser printer is provided having an automatic printhead identification system for use in a family of laser printers that are compatible with more than one model of printhead. For example, a single laser printer model can be made so that two different printheads can be successfully used, so long as the printer system knows which laser printhead has actually been installed. To detect which printhead has been installed, the printer operating system provides a reference clock signal having a pre-determined frequency, which dictates the rotational speed of the motor. Once the motor has achieved a "lock" operational speed, the printer measures the scan rate of the faceted mirror by detecting the time interval between pulses of the "HSYNC" signal. The HSYNC signal is sent to a "divide-by-n counter" circuit which divides the pulse frequency of the HSYNC signal, thereby increasing the time interval (by a factor of "n") that must be sensed by the system to determine which printhead is in fact installed. So long as the HSYNC "lock" frequency is different between the various models of printheads that are compatible with a particular model laser printer, the principles of the invention can be used without adding any extra hardware sensors, signals, or memory addresses and detecting codes.

    摘要翻译： 提供了一种具有自动打印头识别系统的激光打印机，用于与多于一种型号的打印头兼容的激光打印机系列。 例如，只要打印机系统知道实际安装了哪个激光打印头，就可以制造单个激光打印机型号，使得可以成功地使用两个不同的打印头。 为了检测哪个打印头已被安装，打印机操作系统提供具有预定频率的参考时钟信号，其指示电动机的转速。 一旦电机达到“锁定”运行速度，打印机通过检测“HSYNC”信号脉冲之间的时间间隔来测量刻面镜的扫描速率。 HSYNC信号被发送到划分HSYNC信号的脉冲频率的“除以n计数器”电路，从而增加系统必须感测到的时间间隔（乘以“n”的因子），以确定哪个 打印头其实是安装的。 只要HSYNC“锁定”频率在与特定型号的激光打印机兼容的各种型号的打印头之间是不同的，则可以使用本发明的原理而不添加任何额外的硬件传感器，信号或存储器地址和检测代码 。

    Registration of paper location for multiple printing
    5.
    发明授权
    Registration of paper location for multiple printing 失效
    纸张位置注册多次打印

    公开(公告)号：US5688059A

    公开(公告)日：1997-11-18

    申请号：US717392

    申请日：1996-09-20

    申请人： Cyrus Bradford Clarke ,  David Brian Langer ,  Randall David Mayo ,  Gregory John Sherwood

    发明人： Cyrus Bradford Clarke ,  David Brian Langer ,  Randall David Mayo ,  Gregory John Sherwood

    IPC分类号： B41J2/01 ,  B41J2/44 ,  B41J11/42 ,  B41J13/00 ,  B41J13/26 ,  G03G15/00 ,  G03G21/14

    CPC分类号： B41J13/26

    摘要： A laser printer (3) can initiate a line of printing only when the sweep of the laser light reaches a point in its cycle. An inkjet printer (5) moves paper by stepper motor in increments. Switch (9) senses the paper (15) to determine the location of paper in path (6) with respect to nominal printing locations of the laser printer. The closest nominal position is selected for printing. The paper may lead or lag the selected position. Switch (11) senses the paper to determine the location of paper in the path with respect to nominal printing locations of the inkjet printer. Two leads are added to reach a net greater lead, a lag is subtracted from a lead, and two lags are added to reach a net greater lag. The closest nominal position is then selected. This assures that registration does not vary by more than one half of the spacing between nominal locations of the second printer.

    摘要翻译： 激光打印机（3）只有当激光的扫描到达其循环中的一点时，才能启动一行打印。 喷墨打印机（5）通过步进电机逐步移动纸张。 开关（9）感测纸张（15）以确定相对于激光打印机的标称打印位置的路径（6）中的纸张的位置。 选择最接近的标称位置进行打印。 纸张可能导致或滞后于所选位置。 开关（11）感测纸张以确定相对于喷墨打印机的标称打印位置的纸张在路径中的位置。 增加两个线索以达到净更大的领先优势，从潜在客户中减去滞后，并添加两个滞后以达到净更大的滞后。 然后选择最接近的标称位置。 这确保了注册不会超过第二台打印机的标称位置间距的一半以上。

    Control of thermal heating in a belt fuser
    7.
    发明授权
    Control of thermal heating in a belt fuser 有权
    控制带式定影器中的热加热

    公开(公告)号：US06185389B2

    公开(公告)日：2001-02-06

    申请号：US09494029

    申请日：2000-01-28

    申请人： Brian Keith Bartley ,  James Douglas Gilmore ,  Cyrus Bradford Clarke ,  Douglas Campbell Hamilton ,  Kevin D. Schoedinger

    发明人： Brian Keith Bartley ,  James Douglas Gilmore ,  Cyrus Bradford Clarke ,  Douglas Campbell Hamilton ,  Kevin D. Schoedinger

    IPC分类号： G03G1520

    CPC分类号： G03G15/2003

    摘要： An electrophotographic printing apparatus which eliminates overheating of the fuser belt when narrow gauge print media is utilized is disclosed. In this apparatus, a detection means determines whether a sheet of narrow gauge recording medium is being fed into the printer. When it is, the fuser heater is deactivated turned to a present lower temperature or is turned off when the narrow gauge recording medium exits the fusing nip. A preferred apparatus additionally contains means which measures the temperature of the heater once it is deactivated at predetermined intervals and, for each measurement, determines the amount of time required to bring the heater back up to the optimum fusing temperature. The preferred embodiment also includes a means for determining the amount of time it will take for the next piece of print media to travel from its current position to the fuser nip. This preferred embodiment then reactivates the heater when the time required to bring it back up to the fusing temperature is greater than or equal to the amount of time it will take the next piece of print medium to enter the fusing nip. This apparatus prevents overheating of the fuser belt which can accompany the use of narrow gauge print media. The application also discloses a method for fixing images using this apparatus.

    摘要翻译： 公开了一种在使用窄规格打印介质时消除了定影带过热的电子照相打印设备。 在该装置中，检测装置确定一张窄规格记录介质是否被送入打印机。 当它是，定影加热器被禁用转为当前较低的温度，或者当窄标记记录介质离开定影辊隙时关闭。 一种优选的装置还包括当预定的间隔被去激活时测量加热器的温度的装置，并且对于每个测量，确定使加热器回到最佳定影温度所需的时间量。 优选实施例还包括用于确定下一片打印介质从其当前位置行进到定影辊隙所需的时间量的装置。 然后，当使其恢复到定影温度所需的时间大于或等于下一片打印介质进入定影辊隙的时间量时，该优选实施例对加热器进行再启动。 该装置可防止随着使用窄规格打印介质而导致的定影带过热。 本申请还公开了一种使用该装置固定图像的方法。

    Printer for narrow media
    8.
    发明授权
    Printer for narrow media 有权
    狭窄媒体打印机

    公开(公告)号：US06304731B1

    公开(公告)日：2001-10-16

    申请号：US09590574

    申请日：2000-06-08

    申请人： Douglas Anthony Able ,  Charles Jerome Cheek ,  Cyrus Bradford Clarke ,  James Douglas Gilmore ,  Douglas Campbell Hamilton ,  Thomas Campbell Wade

    发明人： Douglas Anthony Able ,  Charles Jerome Cheek ,  Cyrus Bradford Clarke ,  James Douglas Gilmore ,  Douglas Campbell Hamilton ,  Thomas Campbell Wade

    IPC分类号： G03G1500

    CPC分类号： G03G15/2003 ,  G03G15/2042 ,  G03G15/6594 ,  G03G2215/00514 ,  G03G2215/00599 ,  G03G2215/2045

    摘要： A printer has a media feed path (12) for feeding sheets of media (14), with the path having a side reference edge (52) for aligning the media. A media transport mechanism feeds the sheets of media at a standard speed and at a reduced speed. A narrow media detector (38) generates a narrow media signal when sheets of narrow media are fed through the media feed path. A controller (68) adjusts the media transport mechanism to feed the narrow media aligned with the reference edge at the reduced speed. A method of printing sheets of narrow media in a printer comprises the steps of aligning the narrow media with a reference edge in a media feed path of the printer, sensing when the narrow media are present in the media feed path, and feeding the narrow media through the media feed path at the reduced sheet feeding speed and, particularly with a belt fuser, with increased inter-sheet gap.

    摘要翻译： 打印机具有用于馈送介质片材的介质进给路径（12），其中路径具有用于对准介质的侧向参考边缘（52）。 介质传送机构以标准速度和降低的速度馈送介质片。 当窄的介质片通过介质馈送路径馈送时，窄介质检测器（38）产生窄的介质信号。 控制器（68）调节介质传送机构以减小的速度供给与参考边缘对准的窄介质。 在打印机中打印窄介质的薄片的方法包括以下步骤：使窄介质与打印机的介质进给路径中的参考边缘对准，感测当介质进给路径中存在窄介质时，以及将窄介质 通过介质进给路径以减小的片材进给速度，特别是带式定影器，具有增加的片间间隙。