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公开(公告)号：EP0312772A2
公开(公告)日：1989-04-26
申请号：EP88115159.1
申请日：1988-09-15
发明人： Saito, Tetsuya
CPC分类号： B41J9/42 , B41J9/50 , G01N2203/0083
摘要： An impact printer has a platen (1), a carriage (5) movable in parallelism to the platen (1), a hammer (9) carried on the carriage (5), driving means for protruding the hammer (9) toward the platen (1), detecting means (11,12) for detecting the speed of the hammer (9) striking against the platen (1) and returned therefrom, and control means for changing over the speed at which the hammer (9) is protruded toward the platen (1) in conformity with the result of the detection of the detecting means (11,12).
摘要翻译： 冲击式打印机具有台板，与台板平行移动的托架，托架上的锤子，用于将锤子朝向台板突出的驱动装置的检测装置，用于检测撞击台板的锤击速度并返回， 以及控制装置，用于根据检测装置的检测结果，改变锤子朝向压板伸出的速度。
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2.发明公开
公开(公告)号：EP0067936A3
公开(公告)日：1984-04-04
申请号：EP82103177
申请日：1982-04-15
CPC分类号： B41J9/50 , H01H47/325
摘要： A constant energy drive circuit for an inductive load, e.g. an electromagnetic print hammer has a chopping circuit including a comparator (19) which cycles a switch means (10. 14) connecting the energizing coil (11) of the print hammer to an unregulated power supply. Changes in the drive voltage (V1) of the unregulated source are compensated for by altering the switching rate of the switch means by adjusting the amplitude of a reference signal (V R ) applied to the comparator. The reference signal adjustment is inverse to changes in the drive voltage.
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公开(公告)号：EP0312772A3
公开(公告)日：1993-11-10
申请号：EP88115159.1
申请日：1988-09-15
发明人： Saito, Tetsuya
CPC分类号： B41J9/42 , B41J9/50 , G01N2203/0083
摘要： An impact printer has a platen (1), a carriage (5) movable in parallelism to the platen (1), a hammer (9) carried on the carriage (5), driving means for protruding the hammer (9) toward the platen (1), detecting means (11,12) for detecting the speed of the hammer (9) striking against the platen (1) and returned therefrom, and control means for changing over the speed at which the hammer (9) is protruded toward the platen (1) in conformity with the result of the detection of the detecting means (11,12).
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公开(公告)号：EP0139538B1
公开(公告)日：1987-09-09
申请号：EP84307274.5
申请日：1984-10-23
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公开(公告)号：EP0382465B1
公开(公告)日：1993-06-16
申请号：EP90301211.0
申请日：1990-02-06
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公开(公告)号：EP0067936B1
公开(公告)日：1986-08-06
申请号：EP82103177.0
申请日：1982-04-15
CPC分类号： B41J9/50 , H01H47/325
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公开(公告)号：EP0139538A1
公开(公告)日：1985-05-02
申请号：EP84307274.5
申请日：1984-10-23
摘要： A control signal generating circuit generates control signals at times dependent on variable time intervals defined between respective start and stop signals (104, 100). When applied to a character printer to which documents such as checks are fed for printing, the variable time intervals are dependent on the document speed and the control signals control print hammer operation such that uniform character spacing is achieved. The start signal (104) initiates the up-counting of clock pulses in an up/down counter (112) which after a predetermined count causes a control gate (122) to produce a signal. Counting continues in an upward mode until the stop signal (100) occurs, whereafter the counter (112) counts downwards until the predetermined count is reached thereby causing the control gate (122) to terminate the signal produced thereby and thereby enable production of the desired control signal.
摘要翻译： 控制信号产生电路根据在相应的起始和停止信号（104,100）之间定义的可变时间间隔来生成控制信号。 当应用于诸如检查的文档的字符打印机进行打印时，可变时间间隔取决于文档速度，并且控制信号控制打印锤操作，使得实现均匀的字符间隔。 起始信号（104）在上/下计数器（112）中启动时钟脉冲的向上计数，其在预定计数使得控制门（122）产生信号之后。 计数继续向上模式，直到发生停止信号（100），之后计数器（112）向下计数直到达到预定计数，从而使得控制门（122）终止由此产生的信号，从而能够产生所需的 控制信号。
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公开(公告)号：EP0096462A1
公开(公告)日：1983-12-21
申请号：EP83302512.5
申请日：1983-05-04
发明人： Suzuki, Kuniaki
摘要： According to this invention, a voltage signal generating circuit (12, 16, 30, 33) generates a voltage signal which is in synchronism with a print timing signal produced when a printing head is driven. A detection circuit (15a, 15b, 16, 30, 33) detects variations in a power source voltage for driving the printing head. A driving pulse outputting circuit (13, 17, 30, 33) is adapted to output a driving pulse signal with a pulse generating timing and pulse width corresponding to variations in the power source voltage, on the basis of the voltage signal output from the voltage signal generating circuit (15a, 15b, 16,30,33) and detection signal output from the detection circuit (15a, 15b, 16, 30, 33). A driving circuit (14,40) drives the printing head, with the printing timing and printing pressure being based on the driving pulse signal.
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公开(公告)号：EP0409577A1
公开(公告)日：1991-01-23
申请号：EP90307822.8
申请日：1990-07-17
CPC分类号： H01F7/1883 , B41J9/50
摘要： In a printing device employing a solenoid (116) for driving a printing hammer (110), provided are switching member (126) for ON/OFF operating electric current flowing through the solenoid coil, voltage generating member (128) for generating voltage in accordance with the electric current, converting member (130) for converting the generated voltage to a digital value, chopping member (134) for comparing the converted digital value with a predetermined comparison value, while for turning on the switching member (126) when the converted value is smaller than the predetermined comparison value and turning off the switching member (126) when the converted value is larger than the predetermined comparison value, detecting member (128) for detecting voltage relating to a driving operation of said solenoid (116), and controlling member (134) for controlling the predetermined comparison value so as to be varied in an amount based upon the detected voltage. Thus, the current flowed through the solenoid is controlled so as not to be largely varied.
摘要翻译： 在采用用于驱动打印锤（110）的螺线管（116）的打印装置中，设置有用于通过螺线管线圈的导通/截止操作电流的切换构件（126），用于产生电压的电压产生构件（128） 用于将产生的电压转换为数字值的电流转换构件（130），用于将转换后的数字值与预定比较值进行比较的切割构件（134），同时当转换构件 值小于预定比较值，并且当转换值大于预定比较值时关闭切换构件（126），用于检测与所述螺线管（116）的驱动操作有关的电压的检测构件（128），以及 控制构件（134），用于控制预定比较值，以便基于检测到的电压而改变量。 因此，流过螺线管的电流被控制为不会大大变化。
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