Apparatus for printing images on booklets
    2.
    发明授权
    Apparatus for printing images on booklets 失效
    用于在小册子上打印图像的装置

    公开(公告)号:US5183347A

    公开(公告)日:1993-02-02

    申请号:US920528

    申请日:1992-07-28

    IPC分类号: B41J3/28 B41J13/22 B42D9/04

    摘要: An apparatus for printing images on a booklet comprises, first and second paired pinch rollers for conveying pages of the opened booklet to a printing head, located between these paired pinch rollers, a rotatable platen opposed to the printing head and located between the paired pinch rollers, guide plate for guiding one page of the opened booklet to the platen, and a press member for fixing the free end of the one page to the platen. The second paired rollers hold the other page of the booklet but may slipe the page when the free end of the one page is fixed onto the platen thereby adding tension to the other page of the booklet as the platen is rotated. The layout of the recorded images are changed and then printed on the page.

    摘要翻译: 用于在小册子上打印图像的装置包括:第一和第二成对的夹送辊,用于将打开的小册子的页面传送到位于这些成对夹送辊之间的打印头;与打印头相对的位于成对夹送辊之间的可旋转压板 用于将打开的小册子的一页引导到压板的引导板,以及用于将一页的自由端固定到压板的按压构件。 第二个成对的辊子保持小册子的另一页,但是当一页的自由端固定在压板上时可以将页面滑动,从而在压板旋转时向小册子的另一页面增加张力。 记录的图像的布局被更改,然后打印在页面上。

    Color image processing apparatus with image corrector
    4.
    发明授权
    Color image processing apparatus with image corrector 失效
    具有图像校正器的彩色图像处理装置

    公开(公告)号:US4926251A

    公开(公告)日:1990-05-15

    申请号:US178431

    申请日:1988-04-06

    摘要: A color copying machine has a scanning-type proximity linear image sensor unit for optically scanning an input image and producing an image read signal, and a color printer unit for producing a copy image corresponding to the input image at limited levels of printing density. An image type discrimination circuit receives the image read signal, and at least partially discriminates the type of image based on a pattern matching technique, thereby producing a discrimination signal for specifying the image type in a pixel region of a predetermined size of the input image. An adaptive signal processing circuit also receives the image read signal, and performs different image signal correction processing in accordance with the discriminated image type, thus producing a corrected image signal, which is supplied to a multi-value dithering processor. The multi-value dithering processing circuit performs multi-value dither processing of the corrected image signal, and produces a printer drive signal for defining a printing pixel pattern for each pixel of the input image.

    摘要翻译: 彩色复印机具有用于光学扫描输入图像并产生图像读取信号的扫描型邻近线性图像传感器单元,以及彩色打印机单元,用于以有限的打印浓度水平产生与输入图像相对应的复印图像。 图像类型识别电路接收图像读取信号,并且至少部分地基于模式匹配技术来区分图像的类型,由此产生用于指定输入图像的预定大小的像素区域中的图像类型的判别信号。 自适应信号处理电路还接收图像读取信号,并根据鉴别图像类型执行不同的图像信号校正处理,从而产生被提供给多值抖动处理器的校正图像信号。 多值抖动处理电路执行校正图像信号的多值抖动处理,并且产生用于为输入图像的每个像素定义打印像素图案的打印机驱动信号。

    Picture image reader
    5.
    发明授权
    Picture image reader 失效
    图片阅读器

    公开(公告)号:US4692812A

    公开(公告)日:1987-09-08

    申请号:US837846

    申请日:1986-03-10

    IPC分类号: H04N1/191 H04N1/193 H04N1/04

    摘要: The present invention is aimed at reading picture image information of an original by illuminating the original with light and by receiving the transmitted or reflected light from the original. The picture image reader in accordance with the present invention includes an optical sensor for reading picture image information by receiving light from the original that is illuminated by light, a moving mechanism for relatively moving the optical sensor and the original, an overlapping mechanism for overlapping a portion of the reading region for picture images, in the reading of picture images by the optical sensor, and a synthetic picture image formation circuit for synthesizing picture image of the overlapped portion so as to have the picture image coincident with the picture image in the original, based on each picture image information that are read in overlapped manner. The overlapping mechanism comprises a control unit for controlling the moving mechanism so as to let the optical sensor read a portion of the region of picture images and/or a rod array lens arranged so as to have the images of a portion of the picture image of the original imaged in overlapped manner on the optical sensor that are composed of at least two of line image sensors. In addition, the synthetic picture image formation circuit comprises at least two of coefficient circuits for multiplying each of the picture image information of the overlapped portion with predetermined coefficients in order to weight the picture image information, and an adder for summing the weighted picture image information from each of the coefficient circuits.

    摘要翻译: 本发明旨在通过用光照亮原稿并通过接收来自原稿的透射或反射光来读取原稿的图像信息。 根据本发明的图像读取器包括:用于通过接收来自光源的原件的光来读取图像信息的光学传感器,用于相对移动光学传感器和原件的移动机构,用于重叠的重叠机构 用于图像图像的读取区域的部分,通过光学传感器读取图像图像的合成图像图像形成电路,以及用于合成重叠部分的图像图像以使图像图像与原始图像中的图像图像一致的合成图像形成电路 基于以重叠的方式读取的每个图像图像信息。 重叠机构包括:控制单元,用于控制移动机构,以使光学传感器读取图像区域的一部分和/或杆阵列透镜,其布置成具有图像的一部分的图像 原稿以重叠的方式成像在由至少两个线图像传感器组成的光学传感器上。 此外,合成图像形成电路包括用于将重叠部分的每个图像图像信息与预定系数相乘的系数电路中的至少两个以加权图像图像信息,以及加法器,用于将加权图像图像信息 从每个系数电路。

    Error diffusion method in a multi-level image recording apparatus
utilizing adjacent-pixel characteristics
    6.
    发明授权
    Error diffusion method in a multi-level image recording apparatus utilizing adjacent-pixel characteristics 失效
    利用相邻像素特性的多级图像记录装置中的误差扩散方法

    公开(公告)号:US5708514A

    公开(公告)日:1998-01-13

    申请号:US521323

    申请日:1995-08-30

    IPC分类号: H04N1/405 H04N1/40 H04N1/407

    CPC分类号: H04N1/4056

    摘要: An image recording apparatus according to the present invention is characterized by comprising first signal conversion section for converting a pixel density value of an current pixel of an input image signal into a first recording control signal for defining a recording amount, second signal conversion section for referring to an adjacent-pixel recording control signal for defining a recording amount of at least one adjacent pixel connected to the current pixel to convert the first recording control signal into a second recording control signal, being closest to the first recording control signal, for defining a recording amount at which pixel formation for the current pixel is stabilized, recording section for recording an image based on the second recording control signal, and error diffusion section for diffusing an error between the pixel density value and a recording density value of the second recording control signal to a pixel density value of each of non-processed pixels located around the current pixel.

    摘要翻译: 根据本发明的图像记录装置的特征在于包括:第一信号转换部分,用于将输入图像信号的当前像素的像素密度值转换为用于定义记录量的第一记录控制信号;第二信号转换部分,用于参考 涉及用于定义连接到当前像素的至少一个相邻像素的记录量的相邻像素记录控制信号,以将第一记录控制信号转换为最接近第一记录控制信号的第二记录控制信号,用于定义 用于当前像素的像素形成的记录量稳定,用于基于第二记录控制信号记录图像的记录部分和用于扩散像素浓度值和第二记录控制的记录浓度值之间的误差的误差扩散部分 信号到每个非处理像素的像素密度值 围绕当前像素。

    Color image printing apparatus
    9.
    发明授权
    Color image printing apparatus 失效
    彩色图像打印设备

    公开(公告)号:US4884080A

    公开(公告)日:1989-11-28

    申请号:US56763

    申请日:1987-06-02

    摘要: A color image printing apparatus prints one pixel by superposing a predetermined dots of three colors within a 3.times.3 dot matrix in accordance with a density of the pixel. The positions of the printed dots within the dot matrix are stored as a dot pattern for each color. One dot pattern is used for each of a plurality of densities included in one density range. The printing energy for each of the dots included in the dot pattern is controlled in accordance with the density level of the pixel. The dot pattern is different for each color and three dot patterns are stored for each color and for each density range. These three dot patterns are repeatedly used for every three pixels which are continuous in the horizontal direction. These three dot patterns have two or three texture directions. The texture direction other than the vertical direction is different for each color.

    摘要翻译: 彩色图像打印设备根据像素的密度,通过在3×3点阵中叠加三种颜色的预定点来打印一个像素。 点阵内的打印点的位置被存储为每种颜色的点阵图形。 一个点图案用于包括在一个密度范围内的多个密度中的每一个。 根据像素的浓度水平来控制点图案中包括的每个点的打印能量。 点阵图案对于每种颜色是不同的,并且针对每个颜色和每个浓度范围存储三个点图案。 对于在水平方向上连续的每三个像素重复使用这三个点图案。 这三个点图案具有两个或三个纹理方向。 垂直方向以外的纹理方向对于每种颜色都是不同的。

    Thermal recording head
    10.
    发明授权
    Thermal recording head 失效
    热敏记录头

    公开(公告)号:US5006870A

    公开(公告)日:1991-04-09

    申请号:US248847

    申请日:1988-09-26

    IPC分类号: B41J2/345 B41J2/36

    CPC分类号: B41J2/345

    摘要: An improved thermal recording head having a large number of heating elements connected in parallel between a plurality of pairs of electrodes for recording halftone images is provided. Each of the heating elements has end portions divided into two leg sections, and the center portion is narrowed. This configuration allows the thermal recording head to reduce image-roughness to the naked eye. In addition, the variable range of recording density can be significantly expanded.