公开(公告)号：EP0388833A2

公开(公告)日：1990-09-26

申请号：EP90105111.0

申请日：1990-03-19

申请人： HITACHI, LTD.

发明人： Kobayashi, Shinya ,  Shimada, Akira ,  Hakoyama, Akiyoshi ,  Sasaki, Akira

IPC分类号： G06K15/12

CPC分类号： G06K15/128 ,  G06K2215/0071 ,  G06K2215/0074 ,  G06K2215/0082

摘要： An optical recording system is disclosed in which input pixels (101) are recorded by controlling the quantity of light as a medium based on the input pixels. The information on the pixels surrounding at least given one of the input pixels is compared with a predetermined pattern information, and the particular pixel is accord­ingly subdivided into a plurality of regions for each of which the light quantity is controlled. Specifically, an optical recording system includes a recognition device (105) for recognizing at least a feature of the desired image by comparing a pixel information constituting a predetermined pattern with another pixel information making up a recording target and at least given one of the pixels with surrounding pixels, and a device (106) for determining the light quantity in a predetermined manner in accordance with the feature. The system further includes a light quantity control device including a data base (106) having stored therein a set of rules for controlling the light quantity of a given one of the input pixels in accordance with the information on the surrounding pixels.

摘要翻译： 公开了一种光记录系统，其中通过基于输入像素将光量控制为介质来记录输入像素（101）。 将关于至少给定一个输入像素的像素的信息与预定的图案信息进行比较，并且特定像素被相应地细分为多个区域，每个区域的光量被控制。 具体而言，光学记录系统包括识别装置（105），用于通过将构成预定图案的像素信息与构成记录目标的另一个像素信息和至少给定的像素之一进行比较来识别所需图像的至少一个特征， 周围像素，以及用于根据特征以预定方式确定光量的装置（106）。 该系统还包括光量控制装置，其包括数据库（106），其中存储有根据关于周围像素的信息来控制给定一个输入像素的光量的一组规则。

公开(公告)号：EP0367994A2

公开(公告)日：1990-05-16

申请号：EP89118518.3

申请日：1989-10-05

申请人： HITACHI, LTD.

发明人： Sasaki, Akira ,  Hakoyama, Akiyoshi ,  Kato, Takeshi

IPC分类号： H04N1/40

CPC分类号： H04N1/4056 ,  H04N1/4092

摘要： An apparatus for processing a binary video signal (Video Data 1) carrying information of dots to be printed. The binary video signal remains at a relatively higher or lower level for the whole of each bit time to constitute a unit portion of the binary video signal. The unit portion of the binary video signal at one of the levels is representative of one dot. The apparatus includes a first detector (60) for detecting a start of a length of each of those parts of the binary video signal which are at the one level, a second detector (20, 21, 22a, 25, 28) connected with the first detector for determining the number of unit portions contained in each part of the video signal, a generator (20, 21, 22a, 24, 25, 28) connected with the second detector for producing one or more dot pulses for each part of the video signal, each of the dot pulses having a pulse width smaller than that corresponding to the bit time, the number of the one dot pulses being the same as that of the determined number of unit portions, and a controller (12, 20, 21, 22a, 22b, 24a-24c, 22c, 26) connected with the generator for controllably adjusting the pulse width of the dot pulses.

摘要翻译： 要打印的用于处理承载点的信息的二进制视频信号（视频数据1）的装置。 二进制视频信号保持在整个每个位时间来构成二进制视频信号的单元部分的相对较高或较低的水平。 二进制视频信号中的水平的一个单元部是代表一个点的。 该装置包括与该连接的，用于检测每一个是在一个水平上，第二检测器的二进制视频信号的那些部分的长度的开始的第一检测器（60）（20，21，22A，25,28） 确定性采矿第一检测器包含在视频信号中，发电机的每一个部分单元部分的数量（20，21，22A，24，25，28）与所述第二检测器连接，用于产生一个或多个点的脉冲对中的每一个部分 视频信号，每个具有一个脉冲的点脉冲的宽度比对应于所述位时间越小，一个点脉冲是相同的象单元部分的确定性开采数的数目，和一个控制器（12，20，21 ，与发电机连接，以便可控制地调节点脉冲的脉冲宽度22A，22B，24A-24C，22C，26）。

公开(公告)号：EP0194694A2

公开(公告)日：1986-09-17

申请号：EP86103427.0

申请日：1986-03-14

申请人： HITACHI, LTD.

发明人： Suzaki, Masafumi ,  Takahagi, Fumio ,  Mikami, Katsumasa ,  Kitagishi, Tomoji ,  Kobayashi, Ryooichi ,  Furukawa, Shigetaka ,  Sasaki, Akira

IPC分类号： B41J32/00 ,  B41J11/08 ,  B41J33/52 ,  B41J35/36

CPC分类号： B41J32/00 ,  B41J35/08

摘要： A combination of a printer and a ribbon cassette (45) has a mechanism for preventing a portion of the inked ribbon extending between a supply core (51) and a take-up core - (62) of the ribbon cassette (45) from shifting in the direction perpendicular to the longitudinal direction of the inked ribbon with respect to a printing head (40). The mechanism is constituted by a substantially planar surface of the platen - (13), and the printing head (40) is urged against the planar surface of the platen through the inked ribbon portion and a sheet (32) to which solid ink in the area on the inked ribbon portion is transferred by the printing head (40). The width of that area on the inked ribbon portion in the widthwise direc- ion of the inked ribbon is at most equal to a half of the width of the inked ribbon. Alternatively, the mechanism (400) is constitued by a mechanism operative in response to the variation in diameter of the inked ribbon wound on the supply core (51) for applying a variable back tension in the reverse direction to the tension acting on the inked ribbon portion by the take-up core (62).

公开(公告)号：EP0194528A2

公开(公告)日：1986-09-17

申请号：EP86102639.1

申请日：1986-02-28

申请人： HITACHI, LTD.

发明人： Kobayashi, Ryooichi ,  Mikami, Katsumasa ,  Suzaki, Masafumi ,  Nagano, Yousuke ,  Sasaki, Akira ,  Takahagi, Fumio

IPC分类号： B41J2/315 ,  B41J11/02

CPC分类号： G01D15/10 ,  B41J2/33525 ,  B41J2/33565 ,  B41J11/08

摘要： A thermal head (1) is pressed against a platen (62;12) consisting of rubber through a recording paper (13) or a heat sensitive paper. The thermal head (1) is provided a head base (2), a glaze layer portion (3a, 3b, 3c, 3d, 3a', 3d') mounted on the head base (2), and a heating resistor portion (4a, 4b, 4a', 4b') provided on the glaze layer portion (3a, 3b, 3c, 3d, 3a', 3d'). An unit area surface pressure (P) applied from the glaze layer portion (3a, 3b, 3c, 3d, 3a', 3d',) of the thermal head (1) to the recording paper (13) or the heat sensitive paper is set to not less than 0.3 kg/mm 2. A hardness (Hs) of the rubber of the platen (62;12) is adapted of about Hs 40°-Hs 100°. The high areas (13a) of the surface of the recording paper (13) or the heat sensitive paper are flattened to increase the smoothness of the surface of the recording paper (13) or the heat sensitive paper. A high quality printed product of the thermal transfer printer or the thermal printer can be obtained even when the relatively rough recording paper (13) or the heat sensitive paper is used as the object paper.

摘要翻译： 热敏头通过记录纸或热敏纸压在由橡胶构成的压板上。 热敏头设置有头基部，安装在头基部上的釉层部分和设置在釉层部分上的发热电阻部分。 从热敏头的釉层部分到记录纸或热敏纸施加的单位面积表面压力设定为不小于0.3kg / mm2。 压板的橡胶的硬度适应于约40℃-150℃。 记录纸或热敏纸的表面的高面积被压平，以增加记录纸或热敏纸的表面的平滑度。 即使使用相对粗糙的记录纸或热敏纸作为目标纸，也可以获得热转印打印机或热敏打印机的高质量打印产品。

公开(公告)号：EP0160967A2

公开(公告)日：1985-11-13

申请号：EP85105576.4

申请日：1985-05-07

申请人： HITACHI, LTD.

发明人： Suzaki, Masafumi ,  Mikami, Katsumasa ,  Nagano, Yousuke ,  Kitagishi, Tomoji ,  Sasaki, Akira ,  Tajima, Kunio

IPC分类号： B41J3/20

CPC分类号： B41J33/38 ,  B41J2/325 ,  B41J33/36 ,  Y10T74/1524 ,  Y10T74/1553

摘要： A thermal transfer printer wherein the carriage is equipped with the ribbon cassette (5) and the thermal head (6) and has a take-up shaft (28) engageable with the take-up core (27) of the ribbon cassette (5), and clutch means (36) is provided between the motion converting means (35) and the take-up shaft (28) of the carriage, rotational force is transmitted from said motion converting means (35) to the clutch means (36), and the clutch means (36) cuts off the transmission of the rotational force to the take-up shaft (28). The rubbing transfer phenomenon does not occur, since, the ink ribbon (7) starts to travel before the thermal head (6) contacts the platen (11) or after the thermal head (6) separates the platen (11). It is possible to effect control such that no rubbing transfer occurs even when the thermal head (6) is pressed against the platen (11) to effect printing while the carriage is moving transversely at high speed.

公开(公告)号：EP0115841A2

公开(公告)日：1984-08-15

申请号：EP84100950.9

申请日：1984-01-31

申请人： HITACHI, LTD.

发明人： Sasaki, Akira ,  Mashiko, Kazuyuki ,  Saitoh, Shouji ,  Hakoyama, Akiyoshi

IPC分类号： B41J3/20

CPC分类号： B41J2/36 ,  B41J2/325 ,  B41J33/28

摘要： A thermal printer includes an inked ribbon (21), an inked ribbon take-up mechanism, a print head (14) with two arrays (26, 27) of thermal resistance elements (R 11 -R 1n , R 2 ,-R 2n ), a carriage (8) mounting the print head, and a controller (1) for controlling the print operation. The printer is provided with print mode switching circuit which selects low-speed print mode in which one array of thermal resistance elements is activated for each dot pitch for printing, or high-speed print mode in which the two arrays of thermal resistance elements are activated alternately for every dot pitch for printing. The printer having the print head with two thermal resistance elements is capable of high-speed printing and also high quality printing at a low print speed.