公开(公告)号：US4591878A

公开(公告)日：1986-05-27

申请号：US649655

申请日：1984-09-12

申请人： Akira Sasaki ,  Kazuyuki Mashiko ,  Shouji Saitoh ,  Akiyoshi Hakoyama

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

IPC分类号： B41J2/51 ,  B41J2/355 ,  B41J33/54 ,  G06K15/02 ,  H04N1/393 ,  H04N1/21

CPC分类号： B41J33/54 ,  G06K15/028

摘要： A thermal printer comprising a print head having many thermal resistors, a movable carriage with the print head mounted thereon, and a ribbon cassette mounted on the carriage. Print data transmitted from a host system, such as a personal computer, in the form of character code is conducted through a processor into character buffers separately for each line, the print data are transformed into dot-matrix data by character generators CG(L) and CG(S), the converted dot matrix data for two lines are stored through the processor into a dot line buffer, the contents of the dot line buffer are transferred to a shift register, and a head driver for the thermal resistors is activated in response to data from the shift register.

摘要翻译： 一种热敏打印机，包括具有许多热电阻器的打印头，安装有打印头的可移动托架以及安装在托架上的色带盒。 从字符代码形式的主机系统（例如个人计算机）发送的数据通过处理器分别进行到每个行的字符缓冲器，打印数据通过字符发生器CG（L）被转换为点阵数据， 和CG（S），两行的转换点阵数据通过处理器存储到点行缓冲器中，点线缓冲器的内容被传送到移位寄存器，并且热敏电阻的头驱动器被激活 响应来自移位寄存器的数据。

公开(公告)号：US4528572A

公开(公告)日：1985-07-09

申请号：US575784

申请日：1984-02-01

申请人： Akira Sasaki ,  Kazuyuki Mashiko ,  Shouji Saitoh ,  Akiyoshi Hakoyama

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

IPC分类号： B41J2/355 ,  B41J2/325 ,  B41J2/36 ,  B41J3/54 ,  B41J32/00 ,  B41J33/28 ,  G01D15/10

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

摘要： A thermal printer includes an inked ribbon, an inked ribbon take-up mechanism, a print head with two arrays of thermal resistance elements, a carriage mounting the print head, and a controller 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.

摘要翻译： 热敏打印机包括着墨色带，着色色带卷取机构，具有两组热电阻元件的打印头，安装打印头的滑架以及用于控制打印操作的控制器。 打印机设置有打印模式切换电路，其选择低速打印模式，其中一个热电阻元件阵列被激活用于打印的每个点间距，或者两个热电阻元件阵列被激活的高速打印模式 交替地用于打印的每个点间距。 具有具有两个热电阻元件的打印头的打印机能够进行高速打印，并且还能以低打印速度进行高质量打印。

公开(公告)号：US4672391A

公开(公告)日：1987-06-09

申请号：US723220

申请日：1985-04-15

申请人： Akiyoshi Hakoyama ,  Shouji Saitoh ,  Akira Sasaki

发明人： Akiyoshi Hakoyama ,  Shouji Saitoh ,  Akira Sasaki

IPC分类号： B41J2/255 ,  B41J2/345 ,  G01D15/10

CPC分类号： B41J2/345

摘要： A thermal head for use in a dot-matrix printer is disclosed in which a plurality of heating elements for printing dots on recording paper are arranged in a line oblique with respect the moving direction of the thermal head, the dimension of the heating surface of each heating element in a direction parallel to the moving direction of the thermal head is made smaller than the dimension of the heating surface in a direction perpendicular to the above moving direction, each of wiring conductor pairs for supplying a current to the heating elements is extended from both ends of the heating surface in the lengthwise direction thereof, in a direction perpendicular to the moving direction of the thermal head, one wiring conductor of each wiring conductor pair is connected to a common wiring conductor, and the other wiring conductor of each wiring conductor pair is connected directly to a drive circuit.

摘要翻译： 公开了一种用于点阵式打印机的热敏头，其中用于在记录纸上印刷点的多个加热元件相对于热敏头的移动方向以倾斜的方式布置，每个的加热表面的尺寸 加热元件在与热敏头的移动方向平行的方向上的尺寸比垂直于上述移动方向的加热面的尺寸小，用于向加热元件供给电流的布线导体对从 加热面的长度方向的两端沿着与热敏头的移动方向垂直的方向，每个布线导体对的一个布线导体连接到公共布线导体，并且每个布线导体的另一布线导体 对直接连接到驱动电路。

公开(公告)号：US4912564A

公开(公告)日：1990-03-27

申请号：US315303

申请日：1989-02-24

申请人： Shouji Saitoh

发明人： Shouji Saitoh

IPC分类号： H04N1/23 ,  G03G15/04 ,  H04N1/053 ,  H04N1/113 ,  H04N1/12 ,  H04N1/36

CPC分类号： H04N1/053 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04786

摘要： A clock signal generation apparatus is disclosed in which an original signal source generates an original clock signal, a first frequency divider starts dividing the frequency of the original clock signal in response to the rise of the original clock signal and produces a frequency-divided clock signal, a second frequency divider starts dividing the frequency of the original clock signal in response to the fall of the original clock signal and produces a frequency-divided clock signal, a sync timing signal source generates a sync timing signal, and a selection circuit renders effective selected one of the first and second frequency dividers in accordance with a level of the original clock signal at selected one of the ride and fall timings of the sync timing signal thereby to produce the frequency-divided clock signal of the effective frequency divider as a clock signal.

摘要翻译： 公开了一种时钟信号产生装置，其中原始信号源产生原始时钟信号，第一分频器根据原始时钟信号的上升开始分频原始时钟信号的频率，并产生分频时钟信号 ，第二分频器响应于原始时钟信号的下降开始分频原始时钟信号的频率，并产生分频时钟信号，同步定时信号源产生同步定时信号，并且选择电路呈现有效 根据同步定时信号的选择的一个乘坐和下降定时的原始时钟信号的电平，选择第一和第二分频器中的一个，从而产生有效分频器的分频时钟信号作为时钟 信号。

公开(公告)号：US5512928A

公开(公告)日：1996-04-30

申请号：US953963

申请日：1992-09-30

申请人： Takeshi Kato ,  Shouji Saitoh

发明人： Takeshi Kato ,  Shouji Saitoh

IPC分类号： B41J13/00 ,  B41J29/54 ,  B65H1/26 ,  B65H3/44 ,  B65H7/20 ,  G03G15/00 ,  G03G21/00 ,  G06K15/00 ,  G01D15/14

CPC分类号： G03G15/6502 ,  G06K15/00 ,  G03G2215/00383

摘要： In a laser beam printer, printing information is sent from plural hosts and printing is carried out according to the printing information. A printing paper cassette detachment inhibition mechanism unit is provided on a printing paper cassette. The paper cassette detachment inhibition mechanism unit includes fixture grooves provided on the printing paper cassette and stop levers provided on a printing paper cassette mounting port. The printing paper cassette detachment inhibition mechanism unit inhibits the detachment of the printing paper cassette when the printing paper in the printing paper cassette has been selected for use by one of the hosts. A selected printing paper cassette display unit is provided on the laser beam printer and displays the selected printing paper cassette.

摘要翻译： 在激光束打印机中，从多个主机发送打印信息，并根据打印信息进行打印。 在打印纸盒上设置有打印纸盒拆卸禁止机构单元。 纸盒拆卸禁止机构单元包括设置在打印纸盒上的固定槽和设置在打印纸盒安装口上的停止杆。 打印纸盒拆卸禁止机构单元禁止当打印纸盒中的打印纸被选择为主机之一使用时打印纸盒的分离。 在激光束打印机上设置选定的打印纸盒显示单元，并显示所选择的打印纸盒。

公开(公告)号：US5197117A

公开(公告)日：1993-03-23

申请号：US723565

申请日：1991-07-01

申请人： Takeshi Kato ,  Shouji Saitoh

发明人： Takeshi Kato ,  Shouji Saitoh

IPC分类号： B41J29/38 ,  B41J2/485 ,  B41J5/30 ,  G06F3/12 ,  G06K15/02 ,  G06K15/12 ,  H04N1/41

CPC分类号： G06K15/02 ,  G06K15/128 ,  G06K2215/0051 ,  G06K2215/0071 ,  G06K2215/0077

摘要： A laser beam printer comprises a frame memory of one page part and a compression means for compressing a dot data in the frame memory. The compression means compresses to make a compressed and encoded data. The laser beam printer comprises further a memory operable for storing dividedly a plural pages part of the compressed and encoded data and an extension means for decoding and extending the encoded data in the memory by synchronizing with a printing timing. The data compression in the frame memory and the decoding/printing of the dot data in the encoded data memory carries out in parallel. A printing in the laser beam printer can be realized at a high speed.