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公开(公告)号：US3911814A
公开(公告)日：1975-10-14
申请号：US47026974
申请日：1974-05-15
申请人： DATA PRODUCTS CORP
摘要： A hammer bank system for use in a high speed impact printer includes a movable hammer bank in which the hammer spacing is twice the character spacing. A hammer bank controller is used to move the entire hammer bank between two selected hammer bank positions. In one hammer bank position, the hammers are aligned with odd character positions and in the other hammer bank position, the hammers are aligned with the even character positions. The hammer bank controller in response to a move command signal from the printer logic section drives the hammer bank (in a velocity mode) from one of its positions to the other first at an increasing velocity, followed by a constant velocity, until the bank is at a selected distance from the desired position, at which time the hammer bank velocity is decreased to zero and the hammer bank is substantially at the desired position. The controller switches to a position mode in which a position signal is used in a position servo loop to lock the hammer bank at the desired position. In normal operation when the bank is switched to the position mode, a move complete signal is fed back to the printer logic section to terminate the move command signal. Positioning initialization circuitry is also included to automatically drive the hammer bank to one of its desired positions.
摘要翻译： 用于高速冲击打印机的锤击系统包括一个可移动的锤组，其中锤间距是字符间距的两倍。 锤子组控制器用于将整个锤子组移动到两个选定的锤子位置之间。 在一个锤组位置，锤子与奇怪的字符位置对齐，而在另一个锤击位置中，锤子与偶数字符位置对准。 响应于来自打印机逻辑部分的移动命令信号的锤片组控制器以增加的速度将锤组（以速度模式）从其一个位置首先驱动到另一位置，然后以恒定速度驱动，直到该组是 在距离期望位置的选定距离处，此时锤击组速度减小到零，锤组基本处于所需位置。 控制器切换到位置模式，其中在位置伺服回路中使用位置信号以将锤组锁定在期望的位置。 在正常操作中，当存储体切换到位置模式时，移动完成信号被反馈到打印机逻辑部分以终止移动指令信号。 还包括定位初始化电路以自动将锤组驱动到其所需位置之一。
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2.发明授权Electromagnetic setting means and hammer actuating means in print wheel arrangements 失效打印轮安装中的电磁设定装置和锤子动作装置
公开(公告)号：US3596593A
公开(公告)日：1971-08-03
申请号：US3596593D
申请日：1968-06-05
发明人： WADA TASAKU
摘要： A printer for selecting automatically types of numerals and/or characters in response to input signals and for printing the selected types of numerals and characters on a printing paper, in which a plurality of type wheels are arranged rotatably on a shaft at regular intervals. Each of the type wheels has an even number of permanent magnets radially arranged from the center of the type wheel at regular intervals in the alternating arrangement of magnetic polarities of the permanent magnets. Type characters are fixed along the periphery of each type wheel at respective projections each arranged between adjacent two of the permanent magnets. One of the types is selected by rotating each type wheel in the clockwise or counterclockwise direction by driving alternately a pair of electromagnets arranged oppositely to one of the types and the pole of one of the permanent magnets respectively until the selected type opposes a print hammer.
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公开(公告)号：US3565230A
公开(公告)日：1971-02-23
申请号：US3565230D
申请日：1968-04-19
申请人： CREED & CO LTD
CPC分类号： B41J1/34 , B41J9/12 , B41J19/20 , Y10S400/901
摘要： A printing element in the form of a continuously rotating type wheel and an associated operating element in the form of a printing hammer are disposed on opposite sides of a record medium, means are provided for causing said hammer to cooperate with said type wheel to print a selected character on said medium, and said elements move synchronously in a direction parallel to the printing of successive characters.
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公开(公告)号：US3482511A
公开(公告)日：1969-12-09
申请号：US3482511D
申请日：1967-07-18
发明人： TAUCHERT KLAUS , HETTICH BERNHARD , KONIG GERHARD , HOFHEINZ KARLHEINZ , KADE PETER , MUNSTER HORST
IPC分类号： B41J1/50 , B41J9/12 , B41J25/304 , B41F33/16
CPC分类号： B41J9/12 , B41J1/50 , B41J25/304
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公开(公告)号：US4448123A
公开(公告)日：1984-05-15
申请号：US394054
申请日：1982-06-30
申请人： Arthur E. Fleek , Samuel C. Tseng
发明人： Arthur E. Fleek , Samuel C. Tseng
摘要： A variable speed printing (VSP) adaptor for a dot matrix printer which includes a monitoring means having a plurality of devices each capable of assuming one of two states. The monitoring means monitors the state of the pattern data to be printed, and, in the preferred embodiment, the monitoring means comprises a counter which is preset with a number equal to the number of column scans with a dot print line. The pattern data to be printed is scanned in a forward direction, i.e., in the normal printing direction starting at the first print position and the count in the counter is decremented one count for each column data scanned. During the time interval between when this data is latched and the actual hammer actuation, the pattern data is scanned in the backward direction starting at the last print position. Each time the column data for a backward scan is zero, i.e., no dot to be printed, prior to sensing a non-zero column, the count in the counter is decremented one count. The printing operation continues in the interleaved forward/backward scans until the count in the counter reaches a reference level such as zero. Upon sensing this reference level in the counter, a control signal is generated which indicates that the printing of the dot row is complete and initiates movement of the paper to the next dot row position. In an alternate embodiment, the monitoring means comprises a random access storage device.
摘要翻译： 一种用于点阵式打印机的变速打印（VSP）适配器，其包括具有多个装置的监视装置，每个装置能够承担两种状态之一。 监视装置监视要打印的图案数据的状态，并且在优选实施例中，监视装置包括预设有与点打印行相等于列扫描数的计数器。 要打印的图案数据沿着从第一打印位置开始的正向扫描方向，即在从第一打印位置开始的正常打印方向上扫描，并且计数器中的计数对于扫描的每列数据减少一个计数。 在该数据被锁存和实际的锤击致动之间的时间间隔期间，从最后的打印位置开始沿着向后方向扫描图案数据。 每次反向扫描的列数据为零时，即不要打印的点，在感测非零列之前，计数器中的计数减1计数。 打印操作在交错的正向/反向扫描中继续进行，直到计数器中的计数达到诸如零的参考水平。 在计数器中感测到该参考电平时，产生指示点阵列的打印完成并且启动纸张到下一个点行位置的控制信号。 在替代实施例中，监视装置包括随机存取存储装置。
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公开(公告)号：US4278019A
公开(公告)日：1981-07-14
申请号：US58050
申请日：1979-07-16
申请人： Johann H. Meier
发明人： Johann H. Meier
CPC分类号： B41J25/006 , B41J2/31 , B41J9/12
摘要： An all-points addressable dot printer has rows of sloped parallel anvils on a rotating drum. Alternate rows slope in opposite directions for bi-directional printing with a single row of hammer blades. The blades which are spaced apart, are shifted bi-directionally in synchronism with the scanning motion of the anvils to print dots at all dot line points. A second embodiment has a reciprocating comb bar located between the blades and a print medium. Spring fingers on the comb bar have dot forming protrusions. The spring fingers are uniformly spaced with center spacing equal to the center distances between the blades. Comb bar motion is linear with time along the line segments. Blade motion is simple harmonic.
摘要翻译： 全点可寻址点打印机在旋转鼓上具有一排倾斜的平行砧座。 替代行以相反方向倾斜，用于单排锤式叶片的双向打印。 间隔开的叶片与砧座的扫描运动同步地双向移动，以在所有点线点处打印点。 第二实施例具有位于叶片和打印介质之间的往复梳杆。 梳子上的弹簧手指具有点形突起。 弹簧手指均匀间隔开，中心间距等于叶片之间的中心距离。 梳齿条运动与线段的时间呈线性关系。 刀片运动是简单的谐波。
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公开(公告)号：US4134337A
公开(公告)日：1979-01-16
申请号：US805337
申请日：1977-06-10
申请人： Aram S. Arzoumanian
发明人： Aram S. Arzoumanian
摘要： Print smearing observed in double wide hammers can be controlled and reduced by providing the impact face of the print hammer with a concave cylindrical radius of curvature wherein the cylindrical axis is parallel to the vertical font direction. The radius of curvature is chosen according to impact energy and font velocities. In other embodiments, the timing of impact between the hammer and font characters may be offset such that the center of the print column leads the center of the impact hammer at the time of impact. In another embodiment, the radius of cylindrical curvature may be ground off center from the center line of the print hammer by a predetermined offset.
摘要翻译： 通过提供具有凹圆柱形曲率半径的打印锤的冲击面，其中圆柱轴线垂直于垂直字体方向，可以控制和减少在双宽锤中观察到的打印拖尾。 曲率半径根据冲击能量和字体速度选择。 在其他实施例中，锤和字体之间的冲击时间可以偏移，使得打印柱的中心在冲击时引导冲击锤的中心。 在另一个实施例中，圆柱形曲率的半径可以从打印锤的中心线离开中心预定的偏移。
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公开(公告)号：US3734012A
公开(公告)日：1973-05-22
申请号：US3734012D
申请日：1971-08-02
申请人： NCR CO
发明人： HUGGINS O
摘要： A printing apparatus for printing a color bar code and alphanumerics on a label. The apparatus includes first and second groups of characters positioned on first and second portions, respectively, of a printing drum to form a ring of characters therearound. A first inking roll supplies a first ink to the first group of characters, and a second inking roll supplies a second ink to the second group of characters as the drum is rotated. A carriage having print hammers thereon is shifted slightly between first and second positions in timed relation with the rotation of the drum. Several rings of characters composed of the first and second groups of characters are placed axially along the drum. The bars used for printing the color bar code are aligned in a shuttling pattern on the drum, with the long dimension of the bars being transverse to the rotating axis of the drum.
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9.发明授权
公开(公告)号：US3724631A
公开(公告)日：1973-04-03
申请号：US3724631D
申请日：1971-01-15
发明人： KACZEUS S
CPC分类号： B41J9/12 , B41J1/50 , Y10S400/901
摘要： An electronic printer employs a character drum on which the elements are arranged along helical paths, and are divided into a plurality of discrete, axially offset character groups. An impact member is aligned with each of the character groups, and enables printing during concurrent rotation of the drum and axial movement of both the drum and the hammers synchronously past the object to be printed.
摘要翻译： 电子打印机采用字符鼓，元件沿螺旋形路径布置在其上，并被分成多个离散的，轴向偏移的字符组。 冲击构件与每个字符组对齐，并且能够在鼓的同时旋转期间进行打印，并且使滚筒和锤两者的轴向移动同步地经过要打印的对象。
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公开(公告)号：US3349696A
公开(公告)日：1967-10-31
申请号：US47982865
申请日：1965-08-16
发明人： POTTER JOHN T
IPC分类号： B41J9/12
CPC分类号： B41J9/12
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