Image reading apparatus with a function for correcting nonuniformity in
recording density
    1.
    发明授权
    Image reading apparatus with a function for correcting nonuniformity in recording density 失效
    具有校正记录密度不均匀功能的图像读取装置

    公开(公告)号:US5736996A

    公开(公告)日:1998-04-07

    申请号:US432008

    申请日:1995-05-01

    IPC分类号: B41J29/393 H04N1/407 B41J2/05

    CPC分类号: B41J29/393 H04N1/4078

    摘要: An image recording apparatus includes a recording head in which a plurality of recording elements are arranged so as to form an image on a recording medium, a device for causing the recording head to print a predetermined test pattern, an image density reading device for reading the density of the test pattern formed by the recording head, an uneven image density correction device for correcting conditions for driving the plurality of recording elements in accordance with the result of reading, so as to make even the density of the image, a recording stabilizing device for stabilizing a recording operation performed by the recording head, and a control device for operating the recording stabilizing device before the test pattern is printed and operating the test pattern printing device after the recording head has been stabilized by the recording stabilizing device.

    摘要翻译: 图像记录装置包括记录头,其中多个记录元件被布置成在记录介质上形成图像,用于使记录头打印预定测试图案的装置,用于读取记录头的图像浓度读取装置 由记录头形成的测试图案的密度,用于根据读取结果校正用于驱动多个记录元件的条件的不均匀图像浓度校正装置,以使均匀的图像浓度,记录稳定装置 用于稳定由记录头执行的记录操作;以及控制装置,用于在打印测试图案之前操作记录稳定装置,并且在记录头被记录稳定装置稳定之后操作测试图案打印装置。

    Image reading apparatus with a function for correcting nonuniformity in
recording density
    2.
    发明授权
    Image reading apparatus with a function for correcting nonuniformity in recording density 失效
    具有校正记录密度不均匀功能的图像读取装置

    公开(公告)号:US5596353A

    公开(公告)日:1997-01-21

    申请号:US371492

    申请日:1995-01-11

    IPC分类号: B41J29/393 H04N1/407 B41J2/01

    CPC分类号: B41J29/393 H04N1/4078

    摘要: An image recording apparatus includes a recording head in which a plurality of recording elements are arranged so as to form an image on a recording medium, a device for causing the recording head to print a predetermined test pattern, an image density reading device for reading the density of the test pattern formed by the recording head, an uneven image density correction device for correcting conditions for driving the plurality of recording elements in accordance with the result of reading, so as to make even the density of the image formed in accordance with the result of reading, a recording stabilizing device for stabilizing a recording operation performed by the recording head, and a control device for operating the recording stabilizing device before the test pattern is printed and operating the test pattern printing device after the recording head has been stabilized by the recording stabilizing device.

    摘要翻译: 图像记录装置包括记录头,其中多个记录元件被布置成在记录介质上形成图像,用于使记录头打印预定测试图案的装置,用于读取记录头的图像浓度读取装置 由记录头形成的测试图案的密度,用于根据读取结果来校正用于驱动多个记录元件的条件的不均匀图像浓度校正装置,以使均匀的根据读取的图像形成的图像的浓度 读取结果,用于稳定记录头执行的记录操作的记录稳定装置,以及用于在打印测试图案之前操作记录稳定装置的控制装置,并且在记录头已被稳定之后操作测试图案打印装置 记录稳定装置。

    Printing method in which both sides of the recording sheet are inspected
and apparatus therefor
    8.
    发明授权
    Printing method in which both sides of the recording sheet are inspected and apparatus therefor 失效
    检查记录纸的两面的印刷方法及其装置

    公开(公告)号:US5004928A

    公开(公告)日:1991-04-02

    申请号:US337376

    申请日:1989-04-13

    IPC分类号: B41J29/00 G01N21/55 G01N21/86

    CPC分类号: B41J29/00 G01N21/86 G01N21/55

    摘要: According to a method and apparatus for detecting a kind of a recording sheet, a light source for emitting a beam on the recording sheet and a photosensitive element for detecting an amount of beam are used. The photosensitive elements located at predetermined positions are caused to detect amounts of beams reflected by upper and lower surfaces of the recording sheet. The kind of upper or lower surface of the recording sheet is discriminated on the basis of a difference between the amounts of beams reflected by the upper and lower surfaces or one of the amounts of beams.

    摘要翻译: 根据用于检测记录纸的种类的方法和装置,使用用于在记录纸张上发射光束的光源和用于检测光束量的光敏元件。 使位于预定位置的感光元件检测由记录片材的上表面和下表面反射的光束量。 基于由上下表面反射的光束量或光束数量之间的差异来区分记录纸的上表面或下表面的种类。

    Image recording apparatus and method
    10.
    发明授权
    Image recording apparatus and method 失效
    图像记录装置及方法

    公开(公告)号:US5731825A

    公开(公告)日:1998-03-24

    申请号:US705278

    申请日:1996-08-29

    摘要: An image recording apparatus using a plurality of recording heads that can prevent black lines from occurring at scanning boundaries of the recording heads. The total recorded ink volume at the boundaries is positively reduced so that the black lines and the overflow of ink are prevented. The apparatus includes at least a pair of a dark head for discharging relatively dark ink and a light head for discharging relatively light ink. The apparatus separates an input image signal into image signals applied to the dark and light heads using at least two tables. The two tables, one for edge nozzles of each recording head and the other for the remaining nozzles, separate the input image signal independently so that the total ink volume discharged from the edge nozzles are limited to a relatively small amount. Further, the total volume of ink discharged from the edge nozzles of the recording heads are positively reduced by performing black abstraction processing, UCR processing and black inking processing on the basis of the image signals after the separation by the tables, which image signals linearly correspond to the ink volume.

    摘要翻译: 使用能够防止在记录头的扫描边界发生黑线的多个记录头的图像记录装置。 边界处的总记录墨水体积被正确地减小,从而防止墨水的黑线和溢出。 该装置包括至少一对用于排放较暗墨水的暗色头和用于排放相对较浅墨水的光头。 该装置使用至少两个表将输入图像信号分离成施加到暗和光头的图像信号。 两个表,一个用于每个记录头的边缘喷嘴,另一个用于剩余的喷嘴,独立地分离输入图像信号,使得从边缘喷嘴排出的总墨水体积被限制在相对较小的量。 此外,基于通过表分离之后的图像信号,通过执行黑色抽象处理,UCR处理和黑色上墨处理,从记录头的边缘喷嘴排出的墨水的总体积被正确地减少,该图像信号线性对应 到墨水量。