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公开(公告)号：US4701811A
公开(公告)日：1987-10-20
申请号：US733770
申请日：1985-05-14
CPC分类号： H04N1/4057
摘要： In a half-tone recording method and apparatus, half-tone expressing units, each consisting of several recording picture elements, express gradations of density in a document. The recording picture elements in the units are assigned various half-tone levels with the half tone level of at least one of the recording picture elements both increasing and decreasing as the gradation of the half-tone expressing unit increases.
摘要翻译： 在半色调记录方法和装置中，每个由几个记录图像元素组成的半色调表示单元在文档中表示密度的灰度。 当半色调表示单元的灰度增加时，单元中的记录图像元素被分配有各种半色调水平，其中至少一个记录图像元素的半色调级别增加和减少。
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公开(公告)号：US4638372A
公开(公告)日：1987-01-20
申请号：US654403
申请日：1984-09-26
申请人： Svay Leng , Hiroyuki Saitoh , Toshiharu Inui , Norihiko Koizumi , Haruhiko Moriguchi , Takashi Omori , Masami Kurata , Yasuo Katoh
发明人： Svay Leng , Hiroyuki Saitoh , Toshiharu Inui , Norihiko Koizumi , Haruhiko Moriguchi , Takashi Omori , Masami Kurata , Yasuo Katoh
IPC分类号： B41J2/325 , B41J17/38 , B41J35/16 , H04N1/23 , H04N1/40 , H04N1/48 , H04N1/50 , H04N1/21 , H04N1/46
CPC分类号： H04N1/484 , H04N1/40031 , H04N1/506
摘要： A copier capable of producing both color images and monochrome images is disclosed, which comprises a platen for mounting thereon a manuscript, a scanner unit adapted to reciprocate relative to the platen and generate image signals divided in three primary colors by reading the manuscript for each line or for each set of a plurality of lines, four thermal heads for receiving image signals and, in response thereto, selectively actuating heat generation elements, means for supplying the thermal heads with ink donor films of four colors including black, and means for effecting thermal transfer printing on record paper.
摘要翻译： 公开了能够产生彩色图像和单色图像的复印机，其包括用于在其上安装原稿的压板，适于相对于压板往复移动的扫描器单元，并且通过读取每行的原稿产生分为三原色的图像信号 或对于每组多条线，四个热敏头用于接收图像信号，并且响应于此选择性地致动发热元件，用于向热敏头供应包括黑色的四种颜色的供墨膜的装置，以及用于实现热 在记录纸上转印。
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公开(公告)号：US4560988A
公开(公告)日：1985-12-24
申请号：US399147
申请日：1982-07-16
CPC分类号： B41J2/355
摘要： A thermal head for use in thermal printing is operated according to a method in which the data of one line are recorded divisionally, with recording operations for the first and second halves of a line being carried out alternatingly and repeatedly.
摘要翻译： 用于热敏打印的热敏头根据其中一行的数据被分开地记录的方法进行操作，其中一行的第一和第二半的记录操作被交替地重复执行。
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公开(公告)号：US4563691A
公开(公告)日：1986-01-07
申请号：US685382
申请日：1984-12-24
CPC分类号： B41J2/35
摘要： A thermo-sensitive recording apparatus individually controls the energization level of each of a plurality of heater elements formed on a substrate and constituting a thermal print head. In generating each energization level, the present and previous status of an individual heater element and selected neighboring elements are taken into consideration. Other factors combined in a selectively weighted manner include the latent heat of the individual heater element and its neighboring heater elements, the resistance of the heater element, the percentage of heater elements to be activated during the printing of a line, and the temperature of the substrate.
摘要翻译： 热敏记录装置分别控制形成在基板上并构成热打印头的多个加热元件中的每一个的通电电平。 在产生每个通电电平时，考虑各个加热器元件和选定的相邻元件的当前状态和先前状态。 以选择性加权的方式组合的其他因素包括各个加热器元件及其相邻的加热器元件的潜热，加热器元件的电阻，在印刷线路期间被激活的加热器元件的百分比，以及 基质。
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公开(公告)号：US4535340A
公开(公告)日：1985-08-13
申请号：US620258
申请日：1984-06-13
CPC分类号： B41J2/36
摘要： A thermal head is provided with a plurality of juxtaposed heat generating resistors for applying heat to heat sensitive printing medium for reproducing a picture. The resistance values of the heat generating resistors are individually detected at predetermined times and used to update the contents of a memory means. An arithmetic operating circuit calculates quantities of electric power to be supplied to respective heat generating resistors for causing them to generate the same quantity of heat irrespective of the difference in the resistance values of the heat generating resistors.
摘要翻译： 热敏头具有多个并置的发热电阻器，用于向用于再现图像的热敏打印介质施加热量。 在预定时间单独地检测发热电阻器的电阻值，并用于更新存储器装置的内容。 算术运算电路计算供给到各个发热电阻器的电力量，使得它们产生与发热电阻器的电阻值的差异相同的热量。
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公开(公告)号：US4524368A
公开(公告)日：1985-06-18
申请号：US595338
申请日：1984-03-30
申请人： Toshiharu Inui , Haruhiko Moriguchi
发明人： Toshiharu Inui , Haruhiko Moriguchi
摘要： A thermal head drive circuit with the input connected to a source of printing data and the output connected to a thermal head including heater elements, so as to improve the picture quality of a thermal head recording apparatus for printing successive lines. Improved picture quality is effected by using data from previously printed lines to compute a corrected pulse energy for the line being printed. The circuit uses a heat storage state operator for operating the heat storage state of each of the heater elements constituting a thermal head, a pulse energy operator for computing a printing pulse energy to be applied to each of the heater elements, a memory for storing the electrical pulse energy used in the previously printed line, and a counter to count the number of dots on the line to be printed. The pulse energy operator uses data from the heat storage state operator, the counter, and from the memory which has data on the pulse energy used in previously printed lines. The output of the pulse energy operator is connected to a pulse generator which is used to drive the heater elements of a thermal head.
摘要翻译： 一种热敏头驱动电路，其输入端连接到打印数据源，输出端连接到包括加热器元件的热敏头，从而提高用于打印连续线的热敏头记录装置的图像质量。 通过使用来自先前打印的线的数据来计算改进的图像质量，以计算正在打印的线的校正脉冲能量。 电路使用蓄热状态操作器来操作构成热敏头的各个加热元件的蓄热状态，用于计算要施加到每个加热器元件的打印脉冲能量的脉冲能量算子，存储器 在先前打印的线中使用的电脉冲能量，以及计数要打印的线上的点数的计数器。 脉冲能量运算符使用来自储热状态运算符，计数器和存储器中的数据，存储器具有关于以前打印的线中使用的脉冲能量的数据。 脉冲能量运算器的输出端连接到用于驱动热敏头的加热元件的脉冲发生器。
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公开(公告)号：US4514736A
公开(公告)日：1985-04-30
申请号：US455711
申请日：1983-01-05
申请人： Haruhiko Moriguchi , Toshiharu Inui
发明人： Haruhiko Moriguchi , Toshiharu Inui
CPC分类号： B41J2/345
摘要： A thermal head is provided with first and second sets of parallel bar-shaped electrodes which are arranged in slightly spaced parallel planes and cross over one another. Individual crossing resistors are selectively energized to produce a heat generating dot which may be reproduced on a heat sensitive media.
摘要翻译： 热敏头设有第一组和第二组平行的棒状电极，它们设置在稍微间隔开的平行平面上并相互交叉。 单独的交叉电阻器被选择性地通电以产生可以在热敏介质上再现的发热点。
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公开(公告)号：US4449137A
公开(公告)日：1984-05-15
申请号：US361158
申请日：1982-03-23
摘要： A thermal recording method which prevents recording density defects includes preheating the heating elements of the thermal recording head during a time when printing is not carried out. Particularly, the head may be preheated during times when a line is not printed, as between adjacent character lines of a printed or typed document, to prevent recording density deterioration of the next printed line.
摘要翻译： 防止记录密度缺陷的热记录方法包括在不执行打印的时间期间预热热敏记录头的加热元件。 特别地，在印刷或打印文件的相邻字符行之间的头部可以在不打印线的期间被预热，以防止下一个印刷线的记录密度变差。
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公开(公告)号：US4679055A
公开(公告)日：1987-07-07
申请号：US846515
申请日：1986-03-31
申请人： Toshiharu Inui , Haruhiko Moriguchi
发明人： Toshiharu Inui , Haruhiko Moriguchi
CPC分类号： H04N1/4005 , H04N1/40031 , H04N1/40081
摘要： Each picture element is made to correspond to a plurality of dots and the ratios of printing energy corresponding to respective dots in each picture element are determined to correspond to respective tones. The heat accumulation state of a heat generating member corresponding to a picture element to be printed is detected from the tones of picture elements about the picture element to be printed for controlling the printing energy supplied to the heat generating members corresponding to respective dots of the picture image to be printed in accordance with the printing energy ratio and the detected state. With this method it is possible to provide a half tone print having uniform high quality regardless of the tone of a previous line and tones of surrounding picture elements.
摘要翻译： 使每个图像元素对应于多个点，并且确定与每个图像元素中的各个点相对应的打印能量的比率以对应于各个音调。 根据要打印的图像元素的图像元素的色调，检测与要印刷的图像元素相对应的发热元件的热积累状态，以控制与图像的各个点相对应的提供给发热元件的印刷能量 根据打印能量比和检测状态打印的图像。 利用该方法，可以提供具有均匀高质量的半色调打印，而不管前一行的色调和周围图像元素的色调。
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公开(公告)号：US4651167A
公开(公告)日：1987-03-17
申请号：US779645
申请日：1985-09-24
CPC分类号： B41M5/38228 , B41J2/325 , B41M5/345
摘要： A printing method is shown in which printing quality is improved when superimposed thermal-transfer recording is performed. According to the present invention, at least one of a plurality of thermal-transfer media is made of a material of different thermal characteristics from the remaining media. Different thermal-transfer media thermal characteristics are obtained by changing the thickness, melting point or viscosity of the thermal-transfer ink on the thermal transfer media, or by changing the thickness, quality of material or density of the base material of the thermal-transfer media.
摘要翻译： 示出了当执行叠加热转印记录时，改善打印质量的打印方法。 根据本发明，多个热转印介质中的至少一个由与其余介质不同的热特性的材料制成。 通过改变热转印介质上的热转印油墨的厚度，熔点或粘度，或通过改变热转印基材的厚度，材料质量或密度来获得不同的热转印介质热特性 媒体。
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