Method of Multipass Printing Using a Plurality of Halftone Patterns of Dots
    21.
    发明申请
    Method of Multipass Printing Using a Plurality of Halftone Patterns of Dots 有权
    使用多个半色调模式的多点打印方法

    公开(公告)号:US20080036811A1

    公开(公告)日:2008-02-14

    申请号:US11463117

    申请日:2006-08-08

    IPC分类号: B41J2/205

    摘要: A method of printing dots in an area on a page using a plurality of printing passes of a printhead over the area, includes processing continuous tone data representing an image through N halftoning iterations to generate N halftone patterns of dots for the area; and printing each individual halftone pattern of the N halftone patterns during the plurality of printing passes, with each individual halftone pattern of the N halftone patterns being printed on a different printing pass of the plurality of printing passes over the area.

    摘要翻译: 一种使用该区域上的打印头的多个印刷遍印刷页面上的点的方法,包括通过N个半色调迭代处理表示图像的连续色调数据,以产生该区域的N个半色调图案; 以及在多个打印通过期间打印N个半色调图案的每个单独的半色调图案,其中N个半色调图案的每个单独的半色调图案被打印在该区域上的多个打印通过的不同打印通行上。

    Simultaneous Individual and Coupled Error Diffusion
    22.
    发明申请
    Simultaneous Individual and Coupled Error Diffusion 审中-公开
    同时单独和耦合误差扩散

    公开(公告)号:US20070268525A1

    公开(公告)日:2007-11-22

    申请号:US11383607

    申请日:2006-05-16

    IPC分类号: G06F15/00 G06K15/00

    CPC分类号: H04N1/52

    摘要: A system for halftoning an color image that includes first and second primary colors is disclosed. The system includes a first input-dependent threshold generator that generates a threshold based on the first color. The system further includes a second input-dependent threshold generator that generates a threshold based on sum of the first color and the second color.

    摘要翻译: 公开了一种用于半色调包括第一和第二基色的彩色图像的系统。 该系统包括基于第一颜色生成阈值的第一输入相关阈值生成器。 系统还包括第二输入相关阈值生成器,其基于第一颜色和第二颜色的和生成阈值。

    Subcovered printing mode for a printhead with multiple sized ejectors
    23.
    发明授权
    Subcovered printing mode for a printhead with multiple sized ejectors 有权
    带多个尺寸的喷墨头的打印头的底盖打印模式

    公开(公告)号:US06592203B1

    公开(公告)日:2003-07-15

    申请号:US10074923

    申请日:2002-02-11

    IPC分类号: B41J215

    CPC分类号: B41J2/2125 B41J2/15

    摘要: A method of printing with an ink jet printer includes providing a printhead having a plurality of first nozzles with a first size and a plurality of second nozzles with a second size larger than the first size. The first nozzles and the second nozzles are alternatingly disposed in a vertical direction. Print data corresponding to first columns of pixel locations is provided. The print data includes for each pixel location in the first columns both a respective large dot print datum and a respective small dot print datum. One of the respective large dot print datum and the respective small dot print datum is printed at a first pixel location of the corresponding pixel locations in the first columns. Second columns of pixel locations interleaved with the first columns of pixel locations are provided. The other of the respective large dot print datum and the respective small dot print datum not printed in the first pixel location of the first columns is printed at a first pixel location of the second columns of pixel locations.

    摘要翻译: 用喷墨打印机打印的方法包括提供具有第一尺寸的多个第一喷嘴和具有大于第一尺寸的第二尺寸的多个第二喷嘴的打印头。 第一喷嘴和第二喷嘴在垂直方向上交替地设置。 提供与第一列像素位置对应的打印数据。 打印数据包括第一列中的每个像素位置,各自的大点打印数据和相应的小点打印数据。 相应的大点打印基准和相应的小点打印基准之一被打印在第一列中的相应像素位置的第一像素位置处。 提供了与第一列像素位置交错的像素位置的第二列。 在第二列的像素位置的第一像素位置处印刷相应的大点打印数据中的另一个和未打印在第一列的第一像素位置中的各个小点打印数据。

    Image forming apparatus with controlled access
    24.
    发明授权
    Image forming apparatus with controlled access 失效
    具有受控访问的图像形成装置

    公开(公告)号:US06490049B1

    公开(公告)日:2002-12-03

    申请号:US08628177

    申请日:1996-04-04

    IPC分类号: G06F1500

    CPC分类号: B41J2/5056

    摘要: The invention is directed to an image forming apparatus including a print engine operable in at least two modes, and an access control system connected to and controlling the print engine. The access control system includes an access control key for allowing selective and discriminate switching of the print engine from one of the at least two modes to an other of the at least two modes, such as from an economy mode to a high quality mode, or vice versa.

    摘要翻译: 本发明涉及一种图像形成装置,其包括以至少两种模式操作的打印引擎和连接到并控制打印引擎的访问控制系统。 访问控制系统包括访问控制键,用于允许将打印引擎从所述至少两种模式中的一种选择性地区分为所述至少两种模式中的另一种,例如从经济模式到高质量模式,或者 反之亦然。

    Method of interlaced printing using an ink jet printer
    25.
    发明授权
    Method of interlaced printing using an ink jet printer 失效
    使用喷墨打印机进行隔行打印的方法

    公开(公告)号:US5999705A

    公开(公告)日:1999-12-07

    申请号:US60804

    申请日:1998-04-15

    IPC分类号: B41J2/21 G06K15/10 G06K15/00

    CPC分类号: G06K15/107 G06K2215/0094

    摘要: A method of printing on a print medium with an ink jet printer uses a first color ink, a second color ink and a black ink. An image area on the print medium has a plurality of pixel locations. Print image data indicate one of a presence and an absence of the first color ink, the second color ink and the black ink at the plurality of pixel locations. A subset of the print image data is defined. A determination is made as to whether the subset of print image data indicates 1) a presence of the first color ink and/or the second color ink within the subset and a presence of the black ink within the subset; 2) a presence of each of the first color ink and the second color ink within the subset at a same corresponding pixel location; and/or 3) a presence of the first color ink and/or the second color ink within the subset at a number of corresponding pixel locations exceeding a threshold value. The print medium is printed on in the image area at an interlace level which is dependent upon the determination.

    摘要翻译: 用喷墨打印机在打印介质上打印的方法使用第一颜色墨水,第二颜色墨水和黑色墨水。 打印介质上的图像区域具有多个像素位置。 打印图像数据指示多个像素位置处的第一颜色墨水,第二颜色墨水和黑色墨水的存在和不存在。 定义打印图像数据的一个子集。 确定打印图像数据的子集是否表示1)子集内的第一颜色墨水和/或第二颜色墨水的存在以及该子集内的黑色墨水的存在; 2)在相同对应的像素位置存在子集内的第一颜色墨水和第二颜色墨水中的每一个; 和/或3)在超过阈值的多个对应像素位置存在子集内的第一颜色墨水和/或第二颜色墨水。 打印介质以取决于确定的隔行扫描级别打印在图像区域中。

    Combined color halftoning
    26.
    发明授权

    公开(公告)号:US5973803A

    公开(公告)日:1999-10-26

    申请号:US932516

    申请日:1997-09-18

    CPC分类号: H04N1/52

    摘要: Halftoning algorithms such as error diffusion, blue noise mask, and void and cluster mask are known to produce visually pleasing, random, homogeneously distributed patterns of dots on output devices such as color displays or printers, for example. These algorithms are extended to take advantage of the mechanisms of each that cause a homogeneous distribution of dots of one colorant to produce a substantially homogeneous distribution of dots when using multiple colorants. The number of dots of each colorant are combined to form an output dot level number of dots that is caused to be substantially homogeneously distributed.

    Method of printing using a printhead having multiple rows of ink
emitting orifices
    27.
    发明授权
    Method of printing using a printhead having multiple rows of ink emitting orifices 失效
    使用具有多排喷墨孔的打印头进行打印的方法

    公开(公告)号:US5923348A

    公开(公告)日:1999-07-13

    申请号:US806172

    申请日:1997-02-26

    摘要: The invention is directed to a method of manufacturing a printhead in an ink jet printer for jetting an ink onto a print medium. An advance speed of the print medium in a feed direction in the ink jet printer is determined. An approximate drying time of the ink after being jetted onto the print medium from the printhead is also determined. At least two rows of ink emitting orifices are formed in the printhead, with each row of orifices extending substantially across a width of the print medium. Each row of orifices is spaced apart from an adjacent row of orifices in the feed direction a distance which is dependent upon the advance speed of the print medium and the drying time of the ink.

    摘要翻译: 本发明涉及一种在用于将墨喷射到打印介质上的喷墨打印机中制造打印头的方法。 确定喷墨打印机中的进给方向上的打印介质的提前速度。 也确定了从打印头喷射到打印介质上之后油墨的大致干燥时间。 在打印头中形成至少两排喷墨孔,每排孔基本上延伸穿过打印介质的宽度。 每排孔口在进给方向上与邻近的一排孔口间隔开,该距离取决于打印介质的进给速度和油墨的干燥时间。

    Method of printing to inhibit intercolor bleeding
    28.
    发明授权
    Method of printing to inhibit intercolor bleeding 失效
    打印方法来抑制斑间出血

    公开(公告)号:US5809215A

    公开(公告)日:1998-09-15

    申请号:US634455

    申请日:1996-04-18

    CPC分类号: G06K15/102 G06K2215/0094

    摘要: The invention is directed to a method of printing using an ink jet printer which jets a first color ink and a second color ink onto a print medium at locations defined by an image area having a plurality of pixels. The method inhibits intercolor bleeding between the first color ink and the second color ink. A first array of pixels in the image area is selected, with the first array being an M.times.N array wherein M and N are integers. A portion of the first array is defined as a second array of pixels, with the second array being an X.times.Y array wherein X and Y are integers. The integers X and Y are smaller than the integers M and N, respectively. The pixels within the second array are examined. The pixels within the first array are altered if the examined pixels within the second array substantially all correspond to the first color ink.

    摘要翻译: 本发明涉及一种使用喷墨打印机进行打印的方法,该喷墨打印机在由具有多个像素的图像区域限定的位置处将第一颜色墨水和第二颜色墨水喷射到打印介质上。 该方法抑制第一颜色墨水和第二颜色墨水之间的颜色间渗色。 选择图像区域中的第一像素阵列,其中第一阵列是M×N阵列,其中M和N是整数。 第一阵列的一部分被定义为第二像素阵列,其中第二阵列是X×Y阵列,其中X和Y是整数。 整数X和Y分别小于整数M和N。 检查第二阵列内的像素。 如果第二阵列中被检查的像素基本上全部对应于第一颜色墨水,则第一阵列内的像素被改变。