Underpulsed scanner with variable scan speed, P. W. M. color balance,
scan modes and column reversal
    1.
    发明授权
    Underpulsed scanner with variable scan speed, P. W. M. color balance, scan modes and column reversal 失效
    具有可变扫描速度的弱脉冲扫描仪,P. W. M.色彩平衡,扫描模式和色谱柱反转

    公开(公告)号:US5991055A

    公开(公告)日:1999-11-23

    申请号:US717921

    申请日:1996-09-23

    摘要: Scan exposure in a row or swath scanner is controlled by pulsing light sources with pulses that are separated by dark intervals from each other--and from the detector readout periods. Detector sequencing is thereby made independent of the velocity of the pixel-line advance mechanism. Different pulse widths for different colors provide color correction without calculation, or regularize color-space conversion calculations where needed. In a swath scanner, known technology of printing modes is imported into the scanning context. Order of pixel columns within each swath is reversed for printing--permitting use of novel configurations such as a dual-parallel-flatbed copier in which a single common scan-and-advance mechanism simultaneously transports the scan sensor and printheads. To produce mirror images, this configuration is also used without column reversal. In addition to red, green and blue light sources, an infrared source is used for reading invisible indicia that identify forms or media types. The scan sensor is also used for auxiliary printing functions.

    摘要翻译: 脉冲扫描仪中的扫描曝光是通过脉冲光源进行控制的,脉冲间隔相隔较长的脉冲和检测器读出周期。 因此,检测器排序与像素行前进机制的速度无关。 不同颜色的不同脉冲宽度可以在不进行计算的情况下提供颜色校正,也可以在必要时对颜色空间转换进行规 在扫描仪中,将已知的打印模式技术导入到扫描上下文中。 每个条带中的像素列的顺序相反,用于打印,允许使用新颖的配置,例如双平行平板复印机,其中单个共同的扫描和提前机构同时传送扫描传感器和打印头。 为了产生镜像,也可以在没有柱反转的情况下使用此配置。 除了红色,绿色和蓝色光源之外,红外光源用于读取识别形式或介质类型的不可见标记。 扫描传感器也用于辅助打印功能。

    Inter pen offset determination and compensation in multi-pen ink jet
printing systems
    2.
    发明授权
    Inter pen offset determination and compensation in multi-pen ink jet printing systems 失效
    多笔喷墨打印系统中的笔偏移确定和补偿

    公开(公告)号:US5109239A

    公开(公告)日:1992-04-28

    申请号:US490022

    申请日:1990-03-07

    摘要: Apparatus for determining inter-pen offsets in a multiple pen ink jet printer including a drop detector for measuring flight time of ink drops, an aperture plate disposed in the print media plane, and a carriage position sensor for determining carriage position when ink drop flight time exceeds a predetermined value, which indicates that an ink jet is at the edge of the aperture plate. The sensed carriage positions for the respective pens provides information indicative of inter-pen offset in the scan axis direction. In a further embodiment of the invention, the aperture plate can have a stair-shaped boundary to facilitate the calibration of a plurality of nozzles in one scan. For determination of inter-pen offset in the media scan direction, the aperture includes a comb-like boundary that is utilized to produce detect/no detect pattern for a nozzle array in each of the pens, whereby the pattern for each of the pens provides information indicative of the offset between pens.

    摘要翻译: 用于确定多笔喷墨打印机中的笔间偏移的装置,包括用于测量墨滴的飞行时间的墨滴检测器,设置在打印介质平面中的孔板,以及用于在墨滴飞行时间时确定托架位置的托架位置传感器 超过预定值,这表示喷墨处于孔板的边缘。 感测到的各笔的托架位置提供指示扫描轴方向的笔间偏移的信息。 在本发明的另一实施例中,孔板可以具有阶梯形边界以便于在一次扫描中校准多个喷嘴。 为了确定介质扫描方向上的笔间偏移,孔径包括梳状边界,其用于产生每个笔中的喷嘴阵列的检测/无检测图案,由此每个笔的图案提供 指示笔之间偏移的信息。

    Calibration system to correct printhead misalignments
    3.
    发明授权
    Calibration system to correct printhead misalignments 失效
    校准系统以校正打印头未对准

    公开(公告)号:US06568782B1

    公开(公告)日:2003-05-27

    申请号:US09654640

    申请日:2000-09-05

    申请人: Robert D. Haselby

    发明人: Robert D. Haselby

    IPC分类号: B41J29393

    摘要: Apparatus and techniques are disclosed for aligning the operation of the ink jet printhead cartridges of a multiple printhead ink jet swath printer that includes a print carriage that is movable along a horizontal carriage scan axis, (b) first and second ink jet printhead cartridges supported by the movable carriage for printing onto a print media that is selectively movable along a vertical media scan axis, and (c) an optical sensor supported by the movable carriage. The optical sensor includes a quad photodiode detector whose outputs are indicative of the horizontal positions of vertical test lines imaged on the detector in conjunction with horizontal alignment correction, as well as the vertical positions of horizontal test lines imaged on the detector in conjunction with vertical alignment correction

    摘要翻译: 公开了用于对准多打印头喷墨条扫描打印机的喷墨打印头墨盒的操作的装置和技术,其包括可沿水平滑架扫描轴移动的打印托架,(b)第一和第二喷墨打印头墨盒, 用于打印到沿着垂直介质扫描轴可选择性地移动的打印介质上的可移动托架,以及(c)由可移动托架支撑的光学传感器。 光学传感器包括四光电二极管检测器,其输出结合水平对准校正指示在检测器上成像的垂直测试线的水平位置以及在检测器上成像的水平测试线的垂直位置以及垂直对准 更正

    Print cartridge alignment in paper axis
    4.
    发明授权
    Print cartridge alignment in paper axis 失效
    打印墨盒对齐纸张轴

    公开(公告)号:US5297017A

    公开(公告)日:1994-03-22

    申请号:US785650

    申请日:1991-10-31

    摘要: Apparatus and techniques are disclosed for aligning the operation of the ink jet printhead cartridges of a multiple printhead ink jet swath printer that includes a print carriage that is movable along a horizontal carriage scan axis, (b) first and second ink jet printhead cartridges supported by the movable carriage for printing onto a print media that is selectively movable along a vertical media scan axis, and (c) an optical sensor supported by the movable carriage. Alignment of the operation of the printheads along the media scan axis is performed by determining with the optical sensor the relative positions of horizontal test line segments printed by selected nozzles of the printhead cartridges. The relative position information is utilized to calculate a vertical alignment correction which is implemented by enabling selected ink jet nozzles of the printheads and adjusting the position of one printhead cartridge relative to the other such that the nozzles of the ink jet printheads are properly spaced along the media scan axis.

    摘要翻译: 公开了用于对准多打印头喷墨条扫描打印机的喷墨打印头墨盒的操作的装置和技术,其包括可沿水平滑架扫描轴移动的打印托架,(b)第一和第二喷墨打印头墨盒, 用于打印到沿着垂直介质扫描轴可选择性地移动的打印介质上的可移动托架,以及(c)由可移动托架支撑的光学传感器。 通过使用光学传感器确定由打印头墨盒的选定喷嘴打印的水平测试线段的相对位置来执行打印头沿着介质扫描轴的操作的对准。 使用相对位置信息来计算垂直对准校正,其通过使得打印头的所选择的喷墨嘴能够实现,并且相对于另一个打印头墨盒调整一个打印头墨盒的位置,使得喷墨打印头的喷嘴沿着 介质扫描轴。

    Alignment sensor system for multiple print cartridges
    5.
    发明授权
    Alignment sensor system for multiple print cartridges 失效
    多个打印墨盒的对准传感器系统

    公开(公告)号:US6161914A

    公开(公告)日:2000-12-19

    申请号:US885337

    申请日:1997-06-30

    申请人: Robert D. Haselby

    发明人: Robert D. Haselby

    摘要: Apparatus and techniques are disclosed for aligning the operation of the ink jet printhead cartridges of a multiple printhead ink jet swath printer that includes a print carriage that is movable along a horizontal carriage scan axis, (b) first and second ink jet printhead cartridges supported by the movable carriage for printing onto a print media that is selectively movable along a vertical media scan axis, and (c) an optical sensor supported by the movable carriage. The optical sensor includes a quad photodiode detector whose outputs are indicative of the horizontal positions of vertical test lines imaged on the detector in conjunction with horizontal alignment correction, as well as the vertical positions of horizontal test lines imaged on the detector in conjunction with vertical alignment correction.

    摘要翻译: 公开了用于对准多打印头喷墨条扫描打印机的喷墨打印头墨盒的操作的装置和技术,其包括可沿水平滑架扫描轴移动的打印托架,(b)第一和第二喷墨打印头墨盒, 用于打印到沿着垂直介质扫描轴可选择性地移动的打印介质上的可移动托架,以及(c)由可移动托架支撑的光学传感器。 光学传感器包括四光电二极管检测器,其输出结合水平对准校正指示在检测器上成像的垂直测试线的水平位置以及在检测器上成像的水平测试线的垂直位置以及垂直对准 更正。

    Apparatus for enhancing ink-flow reliability in a thermal-inkjet pen;
method for priming and using such a pen
    6.
    发明授权
    Apparatus for enhancing ink-flow reliability in a thermal-inkjet pen; method for priming and using such a pen 失效
    用于提高热喷墨笔中的油墨流动可靠性的装置; 启动和使用这种笔的方法

    公开(公告)号:US5517217A

    公开(公告)日:1996-05-14

    申请号:US968705

    申请日:1992-10-30

    IPC分类号: B41J2/165

    CPC分类号: B41J2/16579

    摘要: Signals indicating ink-discharge presence control priming and preferably halt document creation pending ink resupply--or pending an operator command to go on without resupply. A detector senses ink discharge; circuits including a programmed microprocessor apply the detector signal to control, most typically, pen priming or repriming--and preferably related functions including suspension of printer operation. The detector preferably includes an optical source and detector along an optical path that intersects an ink-discharge path. With a pen that has multiple ink-discharge nozzles, preferably the apparatus distinguishes between ink discharge from the different nozzles (by correlation with nozzle-actuating pulses), and accordingly controls priming of each nozzle independently. Preferably this system is operated before starting to print a new sheet and upon newly installing a pen. In event of inadequate ink discharge, progressively more-energetic priming impulses (higher voltage or duration, or both) are directed to the pen, until adequate discharge results or no further energy increase is deemed suitable.

    摘要翻译: 指示喷墨存在控制启动的信号,并且优选地暂停文件创建,等待墨水补充 - 或等待操作者命令继续进行而不需要补给。 检测器感测墨水排出; 包括编程的微处理器的电路应用检测器信号来控制,最典型的是笔启动或重新引导,并且优选地包括打印机操作中止的相关功能。 检测器优选地包括沿着与喷墨路径相交的光路的光源和检测器。 使用具有多个喷墨喷嘴的笔,优选地,该装置区分来自不同喷嘴的墨排出(通过与喷嘴致动脉冲相关),并且因此独立地控制每个喷嘴的启动。 优选地,该系统在开始打印新纸张之前和新安装笔时操作。 在油墨排出不足的情况下,逐渐更能量的起动脉冲(更高的电压或持续时间,或两者)被引导到笔,直到充分的放电结果或者没有进一步的能量增加被认为是合适的。

    Apparatus and method for pen-lift system
    7.
    发明授权
    Apparatus and method for pen-lift system 失效
    笔式系统的装置和方法

    公开(公告)号:US4567565A

    公开(公告)日:1986-01-28

    申请号:US317980

    申请日:1981-11-03

    CPC分类号: G01D15/22

    摘要: A pen-lift system is provided which can achieve high speed plotting while maintaining line definition of drafting quality. The system includes a pen-lift mechanism for raising and lowering the pen, a pressure control system in order to provide a constant pen force for different kinds of pens, a velocity controller for varying the vertical velocity of the pen in response to changes in platen height and relative lateral pen position, and a position controller for sensing the present pen height relative to the platen and for actuating the pen-lift mechanism to achieve the desired pen-lift heights for different plotting situations.

    摘要翻译: 提供了一种笔式升降系统,可以实现高速绘图,同时保持绘图质量的线条定义。 该系统包括用于提升和降低笔的笔式升降机构,压力控制系统,以便为不同种类的笔提供恒定的笔力;速度控制器,用于响应于压板的变化改变笔的垂直速度 高度和相对横向笔位置,以及位置控制器,用于相对于压板感测当前笔的高度,并且用于致动笔式升降机构以实现用于不同绘制情况的期望的笔式升高高度。

    Automatic print cartridge alignment sensor system
    8.
    发明授权
    Automatic print cartridge alignment sensor system 失效
    自动打印墨盒对齐传感器系统

    公开(公告)号:US06241334B1

    公开(公告)日:2001-06-05

    申请号:US09273014

    申请日:1999-03-19

    申请人: Robert D. Haselby

    发明人: Robert D. Haselby

    IPC分类号: B41J201

    摘要: Apparatus and techniques are disclosed for aligning the operation of the ink jet printhead cartridges of a multiple printhead ink jet swath printer that includes a print carriage that is movable along a horizontal carriage scan axis, (b) first and second ink jet printhead cartridges supported by the movable carriage for printing onto a print media that is selectively movable along a vertical media scan axis, and (c) an optical sensor supported by the movable carriage. The optical sensor includes a quad photodiode detector whose outputs are indicative of the horizontal positions of vertical test lines imaged on the detector in conjunction with horizontal alignment correction, as well as the vertical positions of horizontal test lines imaged on the detector in conjunction with vertical alignment correction.

    摘要翻译: 公开了用于对准多打印头喷墨条扫描打印机的喷墨打印头墨盒的操作的装置和技术,其包括可沿水平滑架扫描轴移动的打印托架,(b)第一和第二喷墨打印头墨盒, 用于打印到沿着垂直介质扫描轴可选择性地移动的打印介质上的可移动托架,以及(c)由可移动托架支撑的光学传感器。 光学传感器包括四光电二极管检测器,其输出结合水平对准校正指示在检测器上成像的垂直测试线的水平位置以及在检测器上成像的水平测试线的垂直位置以及垂直对准 更正。