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公开(公告)号：EP0409576A1
公开(公告)日：1991-01-23
申请号：EP90307821.0
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 (116), 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, another chopping member for alternatively turning the switching member in another predetermined interval shorter than the predetermined interval, when the set value becomes similar to the comparison value, during said predetermined interval. Thus, the current deviation at each of the solenoid driving period are controlled to be limited in the desired range.
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，设置有用于通过电磁线圈（116）的ON / OFF操作电流的切换部件（126），用于产生电压的电压产生部件 根据用于将所产生的电压转换为数字值的电流转换构件（130），用于将转换的数字值与预定比较值进行比较的切割构件（134），同时用于接通切换构件（126） 当所述转换值小于所述预定比较值并且当所述转换值大于所述预定比较值时关闭所述切换构件（126），则另一个切割构件用于在比预定间隔短的另一预定间隔中交替地转动所述切换构件 当所述设定值变得类似于所述比较值时，在所述预定间隔期间。 因此，将每个螺线管驱动期间的电流偏差控制在期望的范围内。
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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：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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4.发明公开
公开(公告)号：EP0382465A1
公开(公告)日：1990-08-16
申请号：EP90301211.0
申请日：1990-02-06
摘要： A drive circuit for driving a wire dot print head including a driving coil (5), a lever (6) for causing a print wire (7) to strike a platen (16) under the action of the driving coil, a spring member (12) for urging the lever (6) to an initial position, and a damper member (13) for absorbing kinetic energy of the lever when it returns to the initial position, comprises a circuit (30, 32, 40, 50) for causing current to flow through the driving coil (5) when the lever (6) is returning to the initial position after having struck the platen (16) in the case where the temperature of the print head is outside a set temperature range. Thus, in operation, a braking force is applied to the lever (6) as it returns to the initial position.
摘要翻译： 一种用于驱动包括驱动线圈（5）的线点打印头的驱动电路，用于在驱动线圈的作用下使打印线（7）撞击压板（16）的杆（6），弹簧构件 12），用于将杠杆（6）推动到初始位置，以及当杠杆返回初始位置时吸收杠杆的动能的阻尼器构件（13）包括用于引起 在打印头的温度超出设定温度范围的情况下，当杆（6）在撞击压板（16）之后返回初始位置时流过驱动线圈（5）的电流。 因此，在操作中，当杠杆（6）返回初始位置时，施加制动力。
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