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    • 2. 发明授权
    • Printing paper seasoning apparatus, method of seasoning of printing paper, and inkjet recording apparatus
    • 打印纸调味装置,打印纸的调味方法和喷墨记录装置
    • US08388126B2
    • 2013-03-05
    • US12974685
    • 2010-12-21
    • Yuhei Chiwata
    • Yuhei Chiwata
    • B41J2/01B41J29/38
    • B65H31/00B65H2301/517B65H2405/114B65H2406/12B65H2515/40B65H2515/805B65H2515/83B65H2601/212B65H2801/06B65H2801/15B65H2220/02
    • A printing paper seasoning apparatus includes: a loading table on which a plurality of sheets of printing paper are stacked and loaded; a ceiling plate which is disposed above the loading table so as to oppose the loading table for covering over an upper side of a stack of the printing paper loaded on the loading table; an air blowing device which blows air from a side face side into a paper accommodating region formed between the loading table and the ceiling plate which are arranged so as to oppose each other; a side plate arranged in a side face portion of the paper accommodating region; and an exhaust section including openings formed in the side plate, wherein an opening ratio of the exhaust section varies in a vertical direction of the paper accommodating region in such a manner that the opening ratio on a lower side of the exhaust section is smaller than the opening ratio on an upper side of the exhaust section.
    • 一种打印纸调节装置,包括:装载台,堆叠并装载多张打印纸; 顶板,其设置在装载台上方,以与装载台相对,以覆盖装载在装载台上的打印纸的堆叠的上侧; 吹风装置,其从侧面侧将空气吹送到形成在所述装载台和所述顶板之间的纸容纳区域中,所述纸容纳区域被布置成彼此相对; 布置在纸容纳区域的侧面部分中的侧板; 以及排气部,其包括形成在所述侧板中的开口,其中所述排气部的开口率在所述纸容纳区域的垂直方向上变化,使得所述排气部的下侧的开口率小于 排气部的上侧的开口率。
    • 4. 发明授权
    • Image forming method and apparatus
    • 图像形成方法和装置
    • US08186820B2
    • 2012-05-29
    • US12410252
    • 2009-03-24
    • Yuhei Chiwata
    • Yuhei Chiwata
    • C09D11/00
    • B41M5/0017B41J11/002B41M7/0036B41M2205/12
    • The image forming method forms an image on a medium by using ink and treatment liquid. The ink contains coloring material and thermoplastic resin particles in a solvent, and the treatment liquid contains a component which aggregates the coloring material. The image forming method includes: a treatment liquid deposition step of depositing the treatment liquid onto the medium to form a treatment liquid film on the medium; an ink droplet deposition step of ejecting and depositing droplets of the ink onto the medium to form an ink film on the medium on which the treatment liquid film has been formed; and an ink film drying step of heating and drying the ink film under conditions where T
    • 图像形成方法通过使用油墨和处理液在介质上形成图像。 油墨在溶剂中含有着色材料和热塑性树脂颗粒,处理液含有使着色材料聚集的成分。 图像形成方法包括:处理液体沉积步骤,将处理液体沉积到介质上以在介质上形成处理液膜; 墨滴沉积步骤,将油墨的液滴喷射并沉积到介质上以在其上形成有处理液膜的介质上形成墨膜; 以及油墨膜干燥步骤,在T
    • 5. 发明申请
    • IMAGE FORMING METHOD AND APPARATUS
    • 图像形成方法和装置
    • US20100231673A1
    • 2010-09-16
    • US12722155
    • 2010-03-11
    • Yuhei CHIWATA
    • Yuhei CHIWATA
    • B41J2/01
    • B41J11/002
    • The image forming method includes: an image forming step of forming an image on a recording medium by using aqueous ink, the recording medium showing dimensional change of not more than 0.1% with respect to water content of 1 g/m2; a drying step of drying the ink on the recording medium after the image forming step; and a recording medium discharge step of discharging the recording medium after the drying step, wherein the drying is carried out in the drying step so that a difference in water content between an image portion and a non-image portion of the recording medium immediately before the recording medium discharge step is not more than 3.0 g/m2.
    • 图像形成方法包括:图像形成步骤,通过使用水性墨水在记录介质上形成图像,所述记录介质相对于1g / m 2的含水量显示不大于0.1%的尺寸变化; 在图像形成步骤之后干燥记录介质上的墨的干燥步骤; 以及记录介质排出步骤,用于在干燥步骤之后排出记录介质,其中在干燥步骤中进行干燥,使得紧接着在干燥步骤之前的记录介质的图像部分和非图像部分之间的含水量差异 记录介质放电步骤不大于3.0g / m 2。
    • 6. 发明授权
    • Image recording apparatus and method, and method of specifying density correction coefficients
    • 图像记录装置和方法以及密度校正系数的确定方法
    • US07484824B2
    • 2009-02-03
    • US11435922
    • 2006-05-18
    • Yuhei Chiwata
    • Yuhei Chiwata
    • B41J29/393
    • H04N1/4015
    • The image recording apparatus comprises: a recording head which has a plurality of recording elements; a conveyance device which causes the recording head and a recording medium to move relatively to each other by conveying at least one of the recording head and the recording medium; a characteristics information acquisition device which acquires information that indicates recording characteristics of the recording elements; a correction object recording element specification device which specifies a correction object recording element from among the plurality of recording elements, a density non-uniformity caused by the recording characteristic of the correction object recording element being corrected; a correction range setting device which sets N correction recording elements (where N is an integer larger than 1) from among the plurality of recording elements, the N correction recording elements being used in correction of output density; a correction coefficient specification device which calculates the density non-uniformity caused by the recording characteristic of the correction object recording element, and specifies density correction coefficients for the N correction recording elements according to correction conditions that reduce a low-frequency component of a power spectrum representing spatial frequency characteristics of the calculated density non-uniformity; a correction processing device which performs calculation for correcting the output density by using the density correction coefficients specified by the correction coefficient specification device; and a drive control device which controls driving of the recording elements according to correction results produced by the correction processing device.
    • 图像记录装置包括:具有多个记录元件的记录头; 输送装置,其通过输送所述记录头和记录介质中的至少一个使所述记录头和记录介质相对移动; 特征信息获取装置,其获取表示记录元件的记录特性的信息; 校正对象记录元件指定装置,其从多个记录元件中指定校正对象记录元件,由校正对象记录元件的记录特性引起的浓度不均匀性被校正; 校正范围设定装置,其用于从所述多个记录元件中设定N个校正记录元素(其中N为大于1的整数),所述N个校正记录元件用于校正输出密度; 校正系数指定装置,其计算由校正对象记录元件的记录特性引起的浓度不均匀性,并根据减少功率谱的低频分量的校正条件来指定N个校正记录元件的浓度校正系数 表示计算密度不均匀的空间频率特性; 校正处理装置,其通过使用由所述校正系数指定装置指定的浓度校正系数进行校正所述输出密度的计算; 以及驱动控制装置,其根据由校正处理装置产生的校正结果控制记录元件的驱动。
    • 7. 发明授权
    • Image forming apparatus and image processing method
    • 图像形成装置及图像处理方法
    • US07306312B2
    • 2007-12-11
    • US11384285
    • 2006-03-21
    • Yuhei Chiwata
    • Yuhei Chiwata
    • B41J2/205
    • H04N1/4015B41J2/205H04N1/405
    • The image forming apparatus forms an image on a prescribed recording medium by carrying out digital halftoning using a threshold value matrix. The image forming apparatus comprises: a plurality of nozzles which eject ink toward the recording medium to form an image; an ejection characteristics determination device which determines ejection characteristics of each of the nozzles; and a threshold value correction device which performs first threshold value correction to reduce density non-uniformity occurring in the image due to error in the ejection characteristics of the nozzles, by correcting the threshold value matrix according to the error in the ejection characteristics of the nozzles, and performs second threshold value correction to reduce granularity in the image by correcting the threshold value matrix having undergone the first threshold value correction, according to threshold values in the threshold value matrix.
    • 图像形成装置通过使用阈值矩阵执行数字半色调来在规定的记录介质上形成图像。 图像形成装置包括:多个喷嘴,用于向记录介质喷射墨以形成图像; 喷射特性确定装置,其确定每个喷嘴的喷射特性; 以及阈值校正装置,其通过根据喷嘴的喷射特性的误差校正阈值矩阵,执行第一阈值校正以减少由于喷嘴的喷射特性的误差而在图像中发生的密度不均匀性 并且根据阈值矩阵中的阈值,通过校正经过第一阈值校正的阈值矩阵来执行第二阈值校正以减少图像中的粒度。