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    Method and apparatus for dynamically enabling thermal elements in a printer
    3.
    发明公开
    Method and apparatus for dynamically enabling thermal elements in a printer 审中-公开
    用于在打印机动态允许热力元件的方法和装置

    公开(公告)号：EP0931665A3

    公开(公告)日：2000-01-12

    申请号：EP99200053.9

    申请日：1999-01-11

    申请人： EASTMAN KODAK COMPANY

    发明人： No, Young, Eastman Kodak Company

    IPC分类号： B41J2/32 ,  G06K15/02 ,  B41J2/355

    CPC分类号： B41J2/3551

    摘要： Both a method and apparatus are provided for sizing and operating enable groups of thermal elements in a thermal printer to allow the printer to be operated by power sources (7) having outputs too small to operate all of the thermal elements simultaneously. Prior to the printing operation, the maximum number of thermal elements that can be actuated by the output of the power source (7) is determined, and then divided into the total number of thermal elements. Next, the resulting quotient is rounded up into the nearest integer in order to ascertain the number of enable groups. The number of enable groups is then divided into the total number of thermal elements to determine the size of each enable group. During the printing operation, streams of non-actuating data are multiplexed into the stream of image data to create virtual enable groups wherein the number of thermal elements actuatable by the image data is no greater than the number of thermal elements in any of the enable groups at any time during the printing operation, thereby preventing the power source (7) from being overtaxed.

    Image forming system
    4.
    发明公开
    Image forming system 有权
    Bilderzeugungssystem

    公开(公告)号：EP0958925A1

    公开(公告)日：1999-11-24

    申请号：EP99109711.4

    申请日：1999-05-17

    申请人： RISO KAGAKU CORPORATION

    发明人： Irie, Yukio, c/o Rison Kagaku Corp. R&D Center

    IPC分类号： B41J2/355 ,  B41J2/505

    CPC分类号： B41J2/3551

    摘要： An image forming system includes a thermal head (21) having a linear array of a plurality of heater elements (21a) extending in a direction of the main scanning, and a head driver (72) which drives the thermal head on the basis of image data to selectively operate the respective heater elements according to image data while the thermal head is being moved relative to a recording medium in a direction of the sub-scanning, thereby forming a copy of the image represented by the image data on the recording medium line by line. The heater elements are divided into a plurality of head blocks (21a-21d) which are contiguous in the main scanning direction, and the head driver is provided with a plurality of head drive segments (72a-72d) of the same number as the number of the head blocks. Image data consisting of a plurality of pieces of line image data is stored in a memory (52). Each line image data consists of a plurality of image data fractions which are of the same number as the number of the head drive segments. When contiguous multi-imaging is to be carried out, the image data fraction of each of the pieces of line image data corresponding to the part to be multiplied of the image is input into the head drive segments which drive the head blocks corresponding to the positions where the copies are to be formed.

    摘要翻译： 图像形成系统包括具有沿主扫描方向延伸的多个加热器元件（21a）的线性阵列的热敏头（21），以及基于图像驱动热敏头的头驱动器（72） 数据，以在热敏头相对于记录介质在副扫描的方向上移动时根据图像数据选择性地操作相应的加热器元件，从而在记录介质线上形成由图像数据表示的图像的副本 一行一行 加热器元件被分成在主扫描方向上相邻的多个头块（21a-21d），并且头驱动器设置有与数字相同数量的多个头驱动段（72a-72d） 的头块。 由多条线图像数据组成的图像数据被存储在存储器（52）中。 每个行图像数据由与头驱动段的数量相同数目的多个图像数据分数组成。 当要执行连续的多成像时，将与图像相乘部分相对应的每条行图像数据的图像数据分数输入到驱动与位置相对应的头部块的磁头驱动段中 将要复印的地方。

    Tape printing device
    5.
    发明公开
    Tape printing device 失效
    磁带打印设备

    公开(公告)号：EP0882596A3

    公开(公告)日：1998-12-30

    申请号：EP98115977.5

    申请日：1995-11-30

    申请人： SEIKO EPSON CORPORATION ,  KING JIM CO., LTD.

    发明人： Yanagisawa, Shigekazu ,  Takatsu, Susumu ,  Watanabe, Kenji ,  Kameda, Takanobu ,  Aida, Chieko ,  Shimmura, Tomoyuki

    IPC分类号： B41J2/355

    CPC分类号： B41J2/3551 ,  B41J2/365 ,  B41J3/4075 ,  B41J3/46

    摘要： Disclosed is a tape printing device that is capable of having set therein any one of a plurality of kinds of tape of different widths for performing printing on the set tape (T). The device comprises printing means (11) having a plurality of heat elements arranged in an array along the width of said set tape (T) wherein the plurality corresponds to the largest one among said different widths. Advancing means (41) are provided for advancing said set tape (T) relative to said printing means (11). Control means (21, 42, 43) are provided for selectively driving said heat elements (11a) and for controlling said advancing means (41) so as to print dots on said set tape (T). The control means (21, 42, 43) is adapted to select, according to the width of said set tape (T), whether the heat elements (11a) used for printing a column of dots along the width of said set tape are to be driven all at once or are to be grouped into a plurality of groups and the groups driven sequentially. Such grouping allows printing on a wide tape even if the power supply to the printing device has a limited capacity as is the case with a battery.

    摘要翻译： 本发明公开了一种带式打印装置，其能够在其中设置用于在设置的带（T）上执行打印的不同宽度的多种带中的任何一种。 该装置包括印刷装置（11），该印刷装置具有沿着所述固定带（T）的宽度排列成阵列的多个加热元件，其中所述多个加热元件对应于所述不同宽度中的最大一个。 推进装置（41）设置用于相对于所述印刷装置（11）推进所述固定带（T）。 提供控制装置（21,42,43），用于选择性地驱动所述加热元件（11a）并控制所述前进装置（41）以在所述固定带（T）上打印点。 控制装置（21,42,43）适于根据所述设定带（T）的宽度来选择用于沿所述设定带的宽度打印一列点的加热元件（11a）是否是 一次全部驱动或者被分组为多个组，并且按顺序驱动组。 即使与打印设备相关的电源具有有限的容量，这种分组也可以在宽带上打印。

    Thermal Printer
    7.
    发明公开
    Thermal Printer 失效
    热敏打印机

    公开(公告)号：EP0774358A1

    公开(公告)日：1997-05-21

    申请号：EP96308339.9

    申请日：1996-11-15

    申请人： SEIKO INSTRUMENTS INC.

    发明人： Nureki, Shinji, c/o Seiko Instruments Inc. ,  Izumi, Shigeo, c/o Seiko Instruments Inc.

    IPC分类号： B41J2/355 ,  B41J2/38

    CPC分类号： B41J2/3551 ,  B41J2/3555 ,  B41J2/38

    摘要： Dynamic division drive of a thermal printer is simplified to reduce the number of signal lines, and history control drive is made efficient to shorten time necessary for data transfer. The thermal printer comprises a heating array 1 for printing split up into blocks and arranged in a line, a plurality of driver units 2, each for driving a block of the heating array 1 separately from other blocks, and a logic circuit 3 for controlling the driver units 2. The logic circuit 3 comprises a block specifying means 31 for specifying one driver unit 2 or two or more driver units 2 to be operated according to block selection data BDAT inputted from an external source. Only the specified driver units 2 are simultaneously operated according to a single strobe signal DST inputted from the external source. Further, the logic circuit 3 comprises a data operation means 33 for internally originating history data based on print data HDAT inputted from the external source. Further, the logic circuit 3 comprises a transfer control means 32 for transferring the history data and the print data HDAT efficiently to each of the driver units 2 to carry out history control drive of each of the blocks of the heating array.

    摘要翻译： 热敏打印机的动态分割驱动器被简化以减少信号线的数量，并且历史控制驱动器被有效地缩短数据传输所需的时间。 该热敏打印机包括：用于打印的加热阵列1，被分成块并排成一行;多个驱动器单元2，每个驱动器单元2用于驱动加热阵列1的块与其他块分开;以及逻辑电路3，用于控制 驱动器单元2.逻辑电路3包括块指定装置31，用于根据从外部源输入的块选择数据BDAT指定一个驱动器单元2或两个或更多个要被操作的驱动器单元2。 根据从外部源输入的单个选通信号DST仅同时操作指定的驱动器单元2。 此外，逻辑电路3包括数据操作装置33，用于基于从外部源输入的打印数据HDAT内部发起历史数据。 此外，逻辑电路3包括传送控制装置32，用于将历史数据和打印数据HDAT有效地传送到每个驱动器单元2，以对加热阵列的每个块执行历史控制驱动。

    Method and apparatus of driving the thermal head of a printing device
    8.
    发明公开
    Method and apparatus of driving the thermal head of a printing device 失效
    驱动印刷装置的热敏头的方法和设备

    公开(公告)号：EP0714781A3

    公开(公告)日：1996-08-28

    申请号：EP95118887.9

    申请日：1995-11-30

    申请人： SEIKO EPSON CORPORATION ,  KING JIM CO., LTD.

    发明人： Yanagisawa, Shigekazu, c/o Seiko Epson Corp. ,  Takatsu, Susumu, c/o Seiko Epson Corp. ,  Watanabe, Kenji, c/o King Jim Co., Ltd. ,  Kameda, Takanobu, c/o King Jim Co., Ltd. ,  Aida, Chieko, c/o King Jim Co., Ltd. ,  Shimmura, Tomoyuki, c/o King Jim Co., Ltd.

    IPC分类号： B41J2/365

    CPC分类号： B41J2/3551 ,  B41J2/365 ,  B41J3/4075 ,  B41J3/46

    摘要： The present invention provides a method and an apparatus for driving and controlling a thermal head used in a printing device, such as a tape printer, in response to the temperature variations of the environment and the thermal head. In the printing operation of the printing device, measurements are made of the initial temperature T₁ immediately after the power is switched on, the temperature T₂ prior to printing, and the ambient temperature T 3(i) of the thermal head each time the thermal head prints. If the temperature difference between the temperature T₁ and the temperature T₂ is small, the duration of the current signals provided to the thermal head is controlled in accordance with the temperature T₂. If the difference is large, the duration is controlled in accordance with the temperature T₁. If the rate of the increase in temperature T 3(i) during printing is large, the duration is controlled in accordance with the initial temperature T₂ to reduce the duration. If the temperature T 3(i) exceeds a temperature which indicates over-heating, the printing operation is aborted. Thus, the present invention allows for controlling the thermal head drive by means of the ambient temperature which is not affected by the heat generation of the thermal head and in accordance with the thermal state of the thermal head.

    摘要翻译： 本发明提供一种用于响应于环境和热敏头的温度变化来驱动和控制用于诸如带式打印机的打印装置中的热敏头的方法和设备。 在打印装置的打印操作中，对电源接通后的初始温度T 1，打印前的温度T 2以及热打印头每次打印时的环境温度T3（i）进行测量 。 如果温度T 1和温度T 2之间的温差很小，则提供给热敏头的电流信号的持续时间根据温度T 2进行控制。 如果差值很大，则根据温度T 1控制持续时间。 如果打印期间温度T3（i）的增加速率很大，则根据初始温度T 2控制持续时间以缩短持续时间。 如果温度T3（i）超过指示过热的温度，则打印操作被中止。 因此，本发明允许借助于不受热头的发热影响的环境温度并根据热头的热状态来控制热头驱动。