公开(公告)号：US5263782A

公开(公告)日：1993-11-23

申请号：US853600

申请日：1992-03-18

申请人： Kohichi Yageta ,  Toshio Hiki ,  Shinichi Watahiki ,  Kazunari Kodama

发明人： Kohichi Yageta ,  Toshio Hiki ,  Shinichi Watahiki ,  Kazunari Kodama

IPC分类号： B41J9/52 ,  B41J2/235

CPC分类号： B41J9/52

摘要： A dot line printer has a plurality of print hammers accommodated in a hammer bank, which make dot impressions on a sheet of print paper as the hammer bank reciprocally moves in a print line direction perpendicular to the direction in which the sheet of print paper is fed. To print L dot lines at a time with each of forward and backward movements of the hammer bank, the print hammers are divided into a preselected number of groups so that each group includes N number of print hammers where L and N are integers equal to or greater than 3. The print hammers in each group are displaced one dot line distance from one another in the sheet feeding direction. The print hammers in each group are further displaced in the print line direction by respective predetermined distances from their home positions so that the respective hammers in each group do not impinge upon the sheet of print paper simultaneously. The print hammers equal in number to the least common multiple of L and N or integer multiples of the least common multiple thereof are integrally formed into a module structure to facilitate the manufacture and management of the hammer assemblies.

摘要翻译： 点阵式打印机具有容纳在锤组中的多个打印锤，当锤组在垂直于纸张供给纸的方向的打印线方向上往复移动时，在打印纸张上形成点印模 。 为了每次打印锤头组的向前和向后运动中的L点线，打印锤被分成预选数量的组，使得每组包括N个打印锤，其中L和N是等于或等于 大于3.每组中的打印锤在片材进给方向上彼此偏移一点点距离。 每组中的打印锤在印刷线方向上进一步位移与其原始位置相隔预定距离，使得每组中的各个锤不会同时撞击在打印纸上。 打印锤的数量等于L和N的最小公倍数或其最小公倍数的整数倍一体地形成为模块结构，以便于锤组件的制造和管理。

公开(公告)号：US5618118A

公开(公告)日：1997-04-08

申请号：US490150

申请日：1995-06-14

申请人： Yoshikane Matsumoto ,  Toshio Hiki ,  Shingo Nakahara ,  Kohichi Yageta ,  Hiroyuki Kurosawa ,  Kohki Kushima

发明人： Yoshikane Matsumoto ,  Toshio Hiki ,  Shingo Nakahara ,  Kohichi Yageta ,  Hiroyuki Kurosawa ,  Kohki Kushima

IPC分类号： B41J33/22 ,  B41J32/02

CPC分类号： B41J32/02

摘要： A printer and ribbon cassette with gears for transmitting power from the drive motor of the printer to the ribbon cassette. Guides are provided for guiding the ribbon cassette in a direction perpendicular to the rotational axis of the gears, so that the ribbon cassette slides easily into place and the gears engage easily, but the gears are tightly engaged.

摘要翻译： 一种具有齿轮的打印机和色带盒，用于从打印机的驱动电机向色带盒传输电力。 引导件用于沿着与齿轮的旋转轴线垂直的方向引导色带盒，使得色带盒容易地滑入就位，并且齿轮容易啮合，但齿轮紧密接合。

公开(公告)号：US5826990A

公开(公告)日：1998-10-27

申请号：US933967

申请日：1997-09-19

申请人： Toshiyuki Suzuki ,  Masami Iwama ,  Kohichi Yageta ,  Mitsuru Kawakami

发明人： Toshiyuki Suzuki ,  Masami Iwama ,  Kohichi Yageta ,  Mitsuru Kawakami

IPC分类号： B41J2/30 ,  B41J9/26 ,  B41J29/38

CPC分类号： B41J9/26

摘要： To prevent effective print speed from being lowered, a counter is provided for each of a plurality of print hammers. A number of times a print hammer is driven during one print phase having a predetermined period of time is counted by the counter. The counted value is compared with a reference value, and when the counted value has reached the reference value during the print phase, driving of the print hammer is halted until the end of the print phase. A reference value is changed based on the number of times the print hammer is driven during a previous print phase immediately before the present print phase. The reference value represents an allowable number the print hammer can be driven during each of successive print phases.

摘要翻译： 为了防止有效的打印速度降低，为多个打印锤中的每一个提供计数器。 通过计数器对打印锤在一个预定时间段的一个打印阶段中被驱动的次数进行计数。 将计数值与参考值进行比较，并且当在打印阶段期间计数值已经达到参考值时，停止打印锤的驱动直到打印阶段结束。 基于在紧接在当前打印阶段之前的之前的打印阶段期间打印锤被驱动的次数来改变参考值。 参考值表示在每个连续打印阶段期间可以驱动打印锤的允许数量。