公开(公告)号：US5485180A

公开(公告)日：1996-01-16

申请号：US56263

申请日：1993-04-30

申请人： Ronald A. Askeland ,  Catherine B. Hunt ,  Keshava A. Prasad ,  Corrina A. E. Hall ,  Mark S. Hickman ,  Lance Cleveland ,  William J. Allen

发明人： Ronald A. Askeland ,  Catherine B. Hunt ,  Keshava A. Prasad ,  Corrina A. E. Hall ,  Mark S. Hickman ,  Lance Cleveland ,  William J. Allen

IPC分类号： B41J2/21 ,  B41M5/00 ,  G06K15/10 ,  H04N1/40 ,  H04N1/52 ,  B41J2/205

CPC分类号： B41J2/2121 ,  G06K15/102 ,  H04N1/40025 ,  H04N1/52 ,  G06K2215/0071

摘要： At least one certain primary or secondary color is established that receives special treatment for at least one printing medium. Such treatment may include (1) using more than two drops of primaries per pixel for binary printing of a particular secondary; or (2) binary-printing the chromatic primary or secondary--but not other hues--after rendition, by use of a "superpixel"; or (3) application of, in effect, a nonintegral number, greater than one, of ink drops per pixel; or (4) combinations of these treatments. As an example of the first of these treatments--using inks optimized for plain paper at one drop of ink for primaries and two (one of each of two primaries) for secondaries--red is printed on transparency film as one drop of yellow ink and two of magenta in each pixel. As to the second treatment, the superpixel is preferably a group of pixels (e.g., a two-by-two array) including the target pixel, in which group each pixel is inked and at least one pixel receives at least two drops of ink.

摘要翻译： 建立至少一种主要或次要颜色，其接收至少一种打印介质的特殊处理。 这样的处理可以包括（1）对于特定次要的二进制打印使用每像素多于两滴的原色; 或者（2）通过使用“超级像素”二进制打印色彩的初级或次级而不是其他色调 - 在再现之后。 或（3）实际上应用大于一个每像素的墨滴的非整数; 或（4）这些处理的组合。 作为这些处理中的第一个的一个例子 - 使用用于初级墨水的一滴墨水为普通纸优化的墨水和二次红色的两个（两个基色中的一个）中的一个打印在透明膜上，作为一滴黄色墨水和两个 的品红色。 关于第二处理，超像素优选为包括目标像素的一组像素（例如，二乘二阵列），其中每个像素被着墨，并且至少一个像素接收至少两滴墨。

公开(公告)号：US5555006A

公开(公告)日：1996-09-10

申请号：US57366

申请日：1993-04-30

申请人： Lance Cleveland ,  Corrina A. E. Hall ,  William C. Hilliard

发明人： Lance Cleveland ,  Corrina A. E. Hall ,  William C. Hilliard

IPC分类号： B41J2/01 ,  B41J2/21 ,  B41J11/42 ,  B41J19/14 ,  G06K15/10 ,  B41J2/145

CPC分类号： G06K15/107 ,  B41J11/42 ,  B41J19/142 ,  B41J2/2132 ,  G06K15/023 ,  G06K2215/0097

摘要： Images are printed using marks formed in pixel arrays by a scanning print head. For transparent and glossy media, with poor absorbance, drying is enhanced by a multipass (preferably six-pass) print mode in which the total number of ink drops or spots is allocated among correspondingly multiple masks, though some may be duplicates. To further hasten drying, heat is applied--through the medium, from the opposite side as that on which ink is deposited--but the amount of heat is strictly moderated, particularly for nontransparent glossy media, to accommodate the hypersensitivity of these media to heat-induced warping. Heating for glossy media is preferably restricted to about one-third the power used for drying plain paper. Convective drying too is promoted, by operating a fan over the printed image. Certain special techniques well-suited for plain-paper printing have been found undesirable for use with plastic media; these techniques include so-called "resolution-enhanced technology", bidirectional printing (particularly of black), and optical-density controlled printing speed. At top and bottom of each page or sheet of printing medium, where it is undesirable to operate with the pen partly off the edge of the sheet, and where also the printing medium is constrained from only one direction rather than being held taut beneath the pen, the print mask is rotated while the printing medium is held stationary--thereby entirely avoiding reliance upon accuracy of print-medium advance.

摘要翻译： 使用通过扫描打印头在像素阵列中形成的标记来打印图像。 对于透明和光泽的介质，吸光度差，通过多次（优选六遍）打印模式来增强干燥，其中在相应的多个掩模中分配总墨滴数或点数，尽管有些可能是重复的。 为了进一步加速干燥，通过介质从与油墨沉积相反的一侧施加热量，但是热量严格缓和，特别是对于不透明的光泽介质，以适应这些介质对热敏介质的超敏性， 引起翘曲。 光泽介质的加热优选限制在用于干燥普通纸的功率的约三分之一。 通过在打印图像上操作风扇来提升对流干燥。 已经发现某些特别适用于普通纸印刷的特殊技术不适合用于塑料介质; 这些技术包括所谓的“分辨率增强技术”，双向打印（特别是黑色）和光密度控制打印速度。 在每页或每页打印介质的顶部和底部，其中不希望用笔部分地从纸张的边缘操作，并且打印介质也仅在一个方向上被限制，而不是被保持拉紧在笔下方 打印介质保持静止时旋转印刷掩模，从而完全避免了依赖于打印介质前进的精度。

公开(公告)号：US5454553A

公开(公告)日：1995-10-03

申请号：US321336

申请日：1994-10-11

申请人： Gerold Firl ,  Lance Cleveland ,  Timothy Zantow, deceased

发明人： Gerold Firl ,  Lance Cleveland ,  Timothy Zantow, deceased

IPC分类号： B41J13/10 ,  B41J11/58 ,  B65H1/04 ,  B65H1/26 ,  B65H31/00 ,  B65H31/10 ,  B65H31/22 ,  B65H5/22

CPC分类号： B41J11/58 ,  B41J13/103 ,  B65H1/04 ,  B65H31/10 ,  B65H31/22 ,  B65H2801/21

摘要： A computer printer tray system comprising a paper input tray and a paper output tray, neither of which is required to have any moving parts. The output tray is supported in part by the input tray and both trays of the system are semi-permanently cantilever supported from the front of the printer so that neither tray has to be removed when loading an unprinted stack of cut sheet paper or removing printed paper. The output tray has a first portion which is inclined from a second portion by about 10.degree. to correct paper curl caused by a wet printing process.

摘要翻译： 一种包括进纸托盘和出纸托盘的计算机打印机托盘系统，两者都不需要具有任何运动部件。 输出托盘由输入托盘部分支撑，系统的两个托盘都是从打印机前部支撑的半永久悬臂，以便在装入未打印的一叠切纸或取出打印纸时，不得将托盘卸下 。 输出托盘具有第一部分，其从第二部分倾斜约10°，以校正由湿式印刷过程引起的纸张卷曲。

公开(公告)号：US5677716A

公开(公告)日：1997-10-14

申请号：US56633

申请日：1993-04-30

申请人： Lance Cleveland

发明人： Lance Cleveland

IPC分类号： B41J2/01 ,  B41J2/13 ,  B41J2/21 ,  B41J2/51 ,  B41J19/14 ,  B41J23/00

CPC分类号： B41J2/2132 ,  B41J19/142

摘要： Images are printed by marks formed in pixel arrays by a scanning print head. During each scan marks are made in a pattern that approximates at least portions of many parallel, separated lines--angled steeply (best at about 3:1 slope, or at least much greater than 1:1) to the scanning axis and shallowly to the print-medium advance. Areas are left unprinted between the angled lines during one or more earlier scans for each image segment, and filled in during one or more later scans. Preferably the marks are made with liquid ink, and the medium heated to hasten drying. Heating causes an end-of-page paper-shrink defect that accentuates positional error components parallel to the print-medium advance; but the lines at a shallow angle to that advance tend to minimize those components--so the heating and steeply angled lines together promote high throughput while hiding the end-of-page defects. In practice the mark-forming includes placing marks only at pixels where marks are desired for a given image: the angled lines are incomplete where marks are not desired. The angled lines are at a steepest angle possible within design architecture of the scanning print head and print-medium-advance mechanism--or the steepest such angle consistent with a roughly equal number of marks per pen scan (for desired images in which all pixels are to be marked) and avoidance of other types of defects.

摘要翻译： 图像由通过扫描打印头形成在像素阵列中的标记打印。 在每个扫描过程中，标记以近似于多个平行，分开的线的至少部分的形状，该部分与扫描轴陡峭地倾斜（最好是大约3：1的斜率，或至少大于1：1），并且浅到 打印介质提前。 在每个图像段的一个或多个较早扫描期间，区域在成角度的线之间保持未打印，并且在一个或多个稍后的扫描期间填充区域。 优选地，标记由液体油墨制成，并且将介质加热以加速干燥。 加热会导致纸页收缩缺陷，从而突出与打印介质前进平行的位置误差分量; 但是与该进步相比较浅的角度的线趋向于使那些部件最小化，因此加热和陡峭的线一起在隐藏页面缺陷的同时提高了高吞吐量。 在实践中，标记形成包括仅在给定图像需要标记的像素处放置标记：在不需要标记的情况下，成角度线是不完整的。 成角度的线在扫描打印头和打印介质提前机构的设计结构内可能是最陡的角度，或者最大的这样的角度与每笔扫描大致相等数量的标记一致（对于所有图像，其中所有像素都是 被标记）和避免其他类型的缺陷。

公开(公告)号：US5455607A

公开(公告)日：1995-10-03

申请号：US56959

申请日：1993-05-03

申请人： W. Wistar Rhoads ,  Lance Cleveland ,  Abdolreza Movaghar

发明人： W. Wistar Rhoads ,  Lance Cleveland ,  Abdolreza Movaghar

IPC分类号： B41J2/01 ,  B41J2/21 ,  B41J25/308

CPC分类号： B41J25/3082 ,  B41J2/2103 ,  B41J25/308

摘要： Color inkjet printers commonly employ a plurality of print cartridges, usually either two or four, mounted in the printer carriage to produce a full spectrum of colors. In order to optimize print quality, it is desirable to minimize the distance between a thermal inkjet printhead and the media that is being printed on. In a multiple printhead printer only one printhead can be the closest one to the media due to the various mechanical tolerances of the printer. Since black text print quality is more sensitive to printhead-to-media distance than is color graphics quality, the overall print quality of both black text and color graphics is optimized by assuring that the black print cartridge is closest to the media. Disclosed is a method for determining the relevant tolerances affecting printhead-to-media distance, analyzing the tolerance values to determine the range of tolerances and the greatest variation between one print cartridge and another, such that a determined percentage of the sampled print cartridges fall within this variation. This value is then used to offset the black print cartridge carriage slot so that the black print cartridge will be closest to the media.

摘要翻译： 彩色喷墨打印机通常采用多个安装在打印机托架中的两个或四个打印盒，以产生全色的颜色。 为了优化打印质量，期望使热喷墨打印头和正在打印的介质之间的距离最小化。 在多重打印头打印机中，由于打印机的各种机械公差，只有一个打印头与介质最接近。 由于黑色文字打印质量比彩色图形质量对打印头到媒体的距离更敏感，所以通过确保黑色打印墨盒最接近媒体来优化黑色文本和彩色图形的整体打印质量。 公开了一种用于确定影响打印头到介质距离的相关公差的方法，分析公差值以确定公差范围和一个打印盒与另一打印盒之间的最大变化，使得所确定的采样打印盒的百分比落在 这个变化。 然后将该值用于抵消黑色墨盒托架插槽，使黑色墨盒最接近介质。

公开(公告)号：US06848765B1

公开(公告)日：2005-02-01

申请号：US08828933

申请日：1997-03-28

申请人： Lance Cleveland

发明人： Lance Cleveland

IPC分类号： B41J2/01 ,  B41J2/13 ,  B41J2/21 ,  B41J2/51 ,  B41J19/14 ,  B41J13/14

CPC分类号： B41J2/2132 ,  B41J19/142

摘要： Two printing-medium guide systems restrain the medium. One is in an area upstream (along the direction of medium advance) from the pen, and extending laterally across the width of the medium except in one or more regions that are laterally near the engagement of a print-medium advancing device. The other guide system is disposed laterally from the pen, and extends laterally across the medium only in one or more regions that are laterally near the engagement of the advancing device. Preferably a human-actuable control selects a print-medium width, and shifts at least one bifurcation of the second guide system. A tensioning system, longitudinally beyond the marking head from the medium advancing device, and generally aligned laterally with that device, tensions the medium away from the advancing device to hold the medium taut at the pen. Preferably the advancing and tensioning devices are very closely spaced upstream and downstream, respectively, from the pen operating zone. When tensioned, the medium moves a normal distance through the apparatus at each operation of the advancing device; but after a trailing edge of the medium passes the advancing device (so that the medium is advanced only by the tensioner and is no longer tensioned), the advance distance is decreased (preferably by about half).

摘要翻译： 两个打印介质导向系统限制介质。 一个是在笔的上游（沿着介质前进的方向）的区域中，并且横向延伸穿过介质的宽度，除了在打印介质前进装置的接合侧面附近的一个或多个区域中。 另一个引导系统从笔的横向设置，并且仅在横向靠近推进装置的接合的一个或多个区域中横向延伸穿过介质。 优选地，人可起动控制选择打印介质宽度，并移动第二引导系统的至少一个分支。 纵向超过标记头从介质推进装置延伸并且与该装置大致对准的张紧系统使介质紧张地从推进装置拉紧以将中间张紧在笔上。 优选地，前进和张紧装置分别与笔操作区分别上游和下游非常紧密地间隔开。 当张紧时，在推进装置的每次操作时，介质移动通过装置的正常距离; 但是在介质的后缘通过前进装置（使得介质仅由张紧器前进并且不再被张紧）之后，提前距离减小（优选地大约一半）。

公开(公告)号：US5354044A

公开(公告)日：1994-10-11

申请号：US55650

申请日：1993-04-30

申请人： Gerold Firl ,  Lance Cleveland ,  Timothy Zantow, deceased

发明人： Gerold Firl ,  Lance Cleveland ,  Timothy Zantow, deceased

IPC分类号： B41J13/10 ,  B41J11/58 ,  B65H1/04 ,  B65H1/26 ,  B65H31/00 ,  B65H31/10 ,  B65H31/22 ,  B65H5/22

CPC分类号： B41J11/58 ,  B41J13/103 ,  B65H1/04 ,  B65H31/10 ,  B65H31/22 ,  B65H2801/21

摘要： A computer printer tray system comprising a paper input tray and a paper output tray, neither of which is required to have any moving parts. The output tray is supported in part by the input tray and both trays of the system are semi-permanently cantilever supported from the front of the printer so that neither tray has to be removed when loading an unprinted stack of cut sheet paper or removing printed paper. The output tray has a first portion which is inclined from a second portion by about 10.degree. to correct paper curl caused by a wet printing process.

摘要翻译： 一种包括进纸托盘和出纸托盘的计算机打印机托盘系统，两者都不需要具有任何运动部件。 输出托盘由输入托盘部分支撑，系统的两个托盘都是从打印机前部支撑的半永久悬臂，以便在装入未打印的一叠切纸或取出打印纸时，不得将托盘卸下 。 输出托盘具有第一部分，其从第二部分倾斜约10°，以校正由湿式印刷过程引起的纸张卷曲。

公开(公告)号：US4734987A

公开(公告)日：1988-04-05

申请号：US19409

申请日：1987-02-26

申请人： Lance Cleveland

发明人： Lance Cleveland

IPC分类号： B41J13/00 ,  B41J13/10 ,  B43L13/00 ,  G01D15/24 ,  G01D15/28

CPC分类号： G01D15/28

摘要： A wave isolator (18) is provided for large format drafting plotters (10) for preventing waves in the drafting medium (16) from traveling up the platen (14) and adversely affecting the pen (20) and its operation and reducing acceleration related vertical scalloping of angled lines. Such waves in the medium are generated by the motion of the paper during the plotting operation. The wave isolator comprises at least one strip (22a) of flexible material secured to the platen and of substantially the same length. Preferably, a polyimide film is used, having a coating of a thermoset acrylic resin with additives including conductive carbon black and polyethylene. In operation, when the medium is moving upward, the wave isolator deflects under the increased inertial load, and air trapped between the medium and the platen exits at the sides of the medium, dissipating some of its energy. When the medium is moving downward, the wave isolator sees a negative change in load and responds by flexing upward, tending to increase the volume of air between the medium and the platen, creating a low pressure area which sucks air in at the sides of the medium, again dissipating its energy. Use of the wave isolator of the invention permits high speed, high acceleration plotting on both sheet and roll media without the aid of firmware solutions.