-
公开(公告)号：US4192230A
公开(公告)日：1980-03-11
申请号：US872169
申请日：1978-01-25
申请人： Nico Blom , Jan T. Wor
发明人： Nico Blom , Jan T. Wor
摘要： A printer comprising an impact device which is provided with an impact member which is electromechanically driven and whose position or speed is measured by means of a transducer in order to obtain a speed signal which is compared with a reference signal in a comparator. The signal output of the comparator is connected to a signal input of an electrical actuation device for driving the impact member, the actuation of the drive being terminated only after a stop signal has appeared on the signal output of the comparator. An adapted speed of the impact member is obtained in all circumstances in a printer in accordance with the invention.
摘要翻译： 一种打印机，其包括设置有机电驱动的冲击构件并且其位置或速度通过换能器测量的冲击装置，以便获得与比较器中的参考信号进行比较的速度信号。 比较器的信号输出连接到用于驱动冲击构件的电致动装置的信号输入，仅在比较器的信号输出端上出现停止信号之后才驱动驱动器的驱动。 在根据本发明的打印机中，在所有情况下获得冲击构件的适应速度。
-
公开(公告)号：US4184781A
公开(公告)日：1980-01-22
申请号：US894711
申请日：1978-04-10
申请人： Toshimichi Ota
发明人： Toshimichi Ota
CPC分类号： B41J7/96 , B41J29/393
摘要： The present invention discloses a dot printer in which means are provided for detecting deterioration of dot print elements which print characters and so on and for detecting trouble caused by a print drive circuit. Print sensing elements are placed at a suitable point of a platen corresponding to a traverse range of dot print elements which are housed within a printing head and a mechanism for driving each dot print element is provided when said dot print elements move in front of the above-said print sensing elements sensing signal is generated when said dot print elements effect printing on the print sensing elements, to indicate the existence of trouble of the print drive circuit or dot print elements.
摘要翻译： 本发明公开了一种点式打印机，其中提供了用于检测打印字符等的点打印元件的劣化并且用于检测由打印驱动电路引起的故障的装置。 打印感应元件被放置在与打印头内容纳的点状印刷元件的横动范围相对应的压板的合适点处，并且当所述点状印刷元件在上述位置移动时设置用于驱动每个点印刷元件的机构 当所述点印刷元件在打印感测元件上进行打印时，产生打印感测元件感测信号，以指示打印驱动电路或点打印元件的故障的存在。
-
公开(公告)号：US4376411A
公开(公告)日：1983-03-15
申请号：US353287
申请日：1982-03-01
摘要： A hammer limit control for an on-the-fly line printer comprises a counter which counts compare signals from a compare circuit which detects coincidences of print data and type position data in synchronism with the motion of an endless type carrier. The counter maintains a running count of the number of compare signals for a control interval having a duration which is a function of the printing interval of a print line cycle. A hammer on storage device stores a plurality of compare counts registered by the counter at the end of each of a plurality of control intervals. An adder adds the running count registered in the counter to the total count stored in the storage means and stores the total sum in a hammer on register. When the total sum in the hammer on register equals a maximum number, a limit comparator generates a control signal which inhibits further comparisons by the compare circuit. The content of the hammer on storage device is updated each control interval by transferring the compare count registered in the compare counter to the storage device and by deleting the oldest count in the hammer on storage after a predetermined number of control intervals. The maximum number is stored in a register which is programmable.
摘要翻译： 用于飞行式打印机的锤击限制控制器包括计数器，其对来自检测与打印数据的重合和类型位置数据的同步的比较电路的信号进行计数。 该计数器维持具有作为打印行周期的打印间隔的函数的持续时间的控制间隔的比较信号数的运行计数。 存储装置上的锤子存储在多个控制间隔的每一个结束时由计数器登记的多个比较计数。 加法器将在计数器中登记的运行计数器加到存储装置中存储的总计数中，并将总和存入锤位寄存器。 当寄存器中的锤子中的总和等于最大数量时，限制比较器产生禁止比较电路进一步比较的控制信号。 通过将登录在比较计数器中的比较计数器传送到存储装置，并且通过在预定数量的控制间隔之后删除存储器中的锤子中的最旧计数，每个控制间隔更新存储装置上的锤的内容。 最大数量存储在可编程寄存器中。
-
公开(公告)号：US3872788A
公开(公告)日：1975-03-25
申请号：US40902473
申请日：1973-10-23
申请人： HONEYWELL BULL SA
CPC分类号： B41J9/46
摘要： A closed loop system is provided in an impact printer wherein a variable delay circuit is introduced into the command input to a hammer of the printer. The introduced delay time between the command input for the hammer to strike and the time at which the hammer actually is released or actuated to travel during its flight time from its normal position into impacting relation with the printer anvil, is adjustable so that the time of impact may be corrected to coincide with a desired timing relation, i.e. the hammer may be ''''aligned.'''' All hammers of the printer are similarly aligned and in order to accommodate for the fact that the actual flight time of any hammer will vary from strike-tostrike, provision is made for determining the average of several actual flight times and for correcting the delay time in accord with this average.
-
公开(公告)号：US3727075A
公开(公告)日：1973-04-10
申请号：US3727075D
申请日：1972-02-24
申请人： IBM
IPC分类号： G01N27/90 , B41J1/20 , B41J9/54 , B41J29/46 , G01N27/02 , G06F11/00 , G06K15/00 , G06K15/08 , G01N27/00 , H02J
CPC分类号： G06F11/0751 , G01N27/023
摘要： A moving train of type elements associated with a high speed printer are passed through the gap of an inductor. The inductor, which is part of a tank circuit of an oscillator, provides a magnetic field across the gap which induces eddy currents in the type elements. The oscillator provides an output signal which is responsive to the changes in the effective resistance of the inductor caused by changes in the eddy currents whenever at least a predetermined portion of at least one of the type elements is missing.
摘要翻译： 与高速打印机相关联的类型元件的移动列通过电感器的间隙。 作为振荡器的振荡电路的一部分的电感器在间隙上提供磁场，其在类型元件中引起涡流。 当至少一个类型元件的至少一个预定部分丢失时，振荡器提供响应于由涡流的变化引起的电感器的有效电阻的变化的输出信号。
-
6.发明授权Printer system having parity checking of print hammers using software control 失效打印机系统使用软件控制对打印锤进行奇偶校验
公开(公告)号：US4335460A
公开(公告)日：1982-06-15
申请号：US115841
申请日：1980-01-28
摘要： A printer control system for a belt printer has an arrangement for checking print hammer operating circuits by comparing a real time actual parity of the circuits with a precalculated expected parity. Prior to printing, a microprocessor calculates expected parity bytes for each subscan for storage in a storage device along with the print position fire data used for selecting the operating circuits to be activated in the related subscans. An actual parity byte is generated on a real time basis by ODD/EVEN parity circuits associated with groups of operating circuits for comparison with a composite parity byte generated each subscan by the microprocessor. The composite parity byte is generated by combining the expected parity bytes from the storage device for several successive subscans. The composite parity byte is updated each subscan by a process of subtracting the initial expected parity byte and adding a new subscan expected parity byte. Comparison is made when all the activating circuits are in stable condition.
摘要翻译： 用于带式打印机的打印机控制系统具有通过将电路的实时实际奇偶校验与预先计算的预期奇偶校验进行比较来检查打印锤操作电路的布置。 在打印之前，微处理器计算用于存储在存储设备中的每个副扫描的预期奇偶校验字节以及用于选择要在相关副扫描程序中被激活的操作电路的打印位置火灾数据。 通过与操作电路组相关联的ODD / EVEN奇偶校验电路实时生成实际奇偶校验字节，以与由微处理器生成的每个副扫描的复合奇偶校验字节进行比较。 通过将来自存储设备的预期奇偶校验字节组合用于几个连续副扫描器来生成复合奇偶校验字节。 复合奇偶校验字节通过减去初始预期奇偶校验字节并添加新的副扫描期望奇偶校验位的处理来更新每个子表。 当所有激活电路处于稳定状态时进行比较。
-
7.发明授权Control system and method for testing print hammers in a high speed printer 失效用于在高速打印机中测试打印锤的控制系统和方法
公开(公告)号：US4317412A
公开(公告)日：1982-03-02
申请号：US162994
申请日：1980-06-25
CPC分类号： B41J1/20 , B41J29/393
摘要： A method and apparatus for testing print elements of a printer, such as a belt printer, in which the print element operating circuits are energized at an energy level insufficient to cause printing but sufficient to generate feedback signals for checking operativeness by a microprocessor.
摘要翻译： 一种用于测试诸如带式打印机的打印机的打印元件的方法和装置，其中打印元件操作电路以不足以引起打印的能级被激励，但足以产生用于检查微处理器的操作性的反馈信号。
-
公开(公告)号：US4315297A
公开(公告)日：1982-02-09
申请号：US56736
申请日：1979-07-11
CPC分类号： H02H3/087
摘要： A hammer drive safety device for a line printer having a plurality of solenoid-driven hammers is disclosed, which includes a time limiting circuit for producing an output when a character print command signal is not produced for more than a predetermined duration, the plurality of detectors for detecting currents flowing through the respective solenoids, and a switch responsive to the output of the time limiting circuit and the outputs of the detector for disconnecting the solenoids from the power source.
摘要翻译： 公开了一种用于具有多个螺线管驱动锤的线打印机的锤驱动安全装置，其包括用于当字符打印命令信号不产生多于预定持续时间时产生输出的时间限制电路，所述多个检测器 用于检测流过各螺线管的电流，以及响应于时间限制电路的输出和用于从电源断开螺线管的检测器的输出的开关。
-
公开(公告)号：US3539786A
公开(公告)日：1970-11-10
申请号：US3539786D
申请日：1969-03-24
申请人： NCR CO
发明人： RAEHPOUR ASSAD
IPC分类号： B41J9/54 , B41J29/393 , G01R31/02 , G06K15/06 , G06F11/00
CPC分类号： B41J29/393 , G01R31/024
-
公开(公告)号：US5518326A
公开(公告)日：1996-05-21
申请号：US355801
申请日：1994-12-14
申请人： Satoshi Yoshino , Akihiro Abe
发明人： Satoshi Yoshino , Akihiro Abe
CPC分类号： B41J2/30 , B41J29/393 , B41J9/52
摘要： An impact printer which can detect halfway defects of printing coils such as partial short circuits is disclosed. The impact printer according to the present invention includes at least one printing coil for driving a printing element and driving transistor which controls the printing element by switching a current flowed through the printing coil, and further includes an inductance detection means for detecting whether or not said printing coil has an appropriate inductance.
摘要翻译： 公开了可以检测诸如局部短路的打印线圈的中途缺陷的冲击式打印机。 根据本发明的冲击式打印机包括用于驱动打印元件的至少一个打印线圈和通过切换流过打印线圈的电流来控制打印元件的驱动晶体管，并且还包括电感检测装置，用于检测所述 印刷线圈具有适当的电感。
-
-
-
-
-
-
-
-
-
搜索结果
13 条记录 (耗时 0.012 秒)
