WARNING DEVICE FOR PRINTERS
    4.
    发明公开
    WARNING DEVICE FOR PRINTERS 失效
    WARNUNGSVORRICHTUNGFÜRDRUCKMASCHINEN

    公开(公告)号:EP0901673A4

    公开(公告)日:1999-11-17

    申请号:EP97927844

    申请日:1997-05-29

    申请人: QMS INC

    CPC分类号: B41J29/393 B41J29/46

    摘要: A modular peripheral error warning device (10) for use with printers having a Centronics parallel port (20). The peripheral error warning device monitors various voltages of connecting wires (18) that interface with the computer and the printer (22) and includes an interface box (12), an alarm box (14), and a power supply (16). Activation of an alarm, such as a buzzer (36) or LED (34), will occur if the monitored voltage corresponds to printer error, such as a paper jam. Correction of the printer error results in deactivation of the alarm.

    摘要翻译: 一种用于具有Centronics并行端口(20)的打印机的模块化外围错误警告装置(10)。 外围错误警告装置监视与计算机和打印机(22)连接的连接线(18)的各种电压,并包括接口盒(12),警报器(14)和电源(16)。 如果监测到的电压与打印机错误(如卡纸)相对应,则会发生蜂鸣器(36)或LED(34)等警报的激活。 更正打印机错误导致禁用警报。

    Improved printer
    6.
    发明公开
    Improved printer 失效
    Verbesserter Drucker

    公开(公告)号:EP0732213A2

    公开(公告)日:1996-09-18

    申请号:EP96301798.3

    申请日:1996-03-15

    申请人: PRINTRONIX, INC.

    IPC分类号: B41J2/30

    摘要: A printer with a reciprocally moving hammerbank with a plurality of hammers thereon is disclosed including a magnet for retaining hammers on the hammerbank of the printer from a firing position. A coil overcomes the magnetism of the magnet by a circuit for reversing the magnetic field. At least a portion of the circuit comprises transistor drivers located directly on the hammerbank of the printer.

    摘要翻译: 公开了一种具有在其上具有多个锤的往复运动锤库的打印机,其包括用于将锤从击发位置将锤保持在打印机锤锤组上的磁体。 线圈通过用于反转磁场的电路来克服磁体的磁性。 电路的至少一部分包括直接位于打印机锤锤组上的晶体管驱动器。

    Dot matrix printer using piezoelectric or other actuator having discharge control means
    8.
    发明公开
    Dot matrix printer using piezoelectric or other actuator having discharge control means 失效
    Punktmatrixdrucker mit piezoelektrischem oder anderem Aktuator und Entladungsregelvorrichtung。

    公开(公告)号:EP0668166A3

    公开(公告)日:1996-03-06

    申请号:EP95105985.6

    申请日:1989-10-27

    IPC分类号: B41J2/30

    CPC分类号: B41J2/30 H01L41/042

    摘要: A driver circuit for driving a piezoelectric element (P), including a charging circuit having a DC power source (E) and a coil (L) for charging the piezoelectric element, and a discharging circuit for discharging the piezoelectric element. When the piezoelectric element is charged, a first switching device (TR1) in the charging circuit is held on until a voltage of the element reaches a predetermined level below a line voltage of the power source. A second switching device (TR2) provided in the discharging circuit is turned on at the time when the first switching device is turned off or at a predetermined later time, and is turned off by the time when said first switching device is again turned on next activation of the piezoelectric element. A voltage limiter (D1, D2) inhibits the voltage of the piezoelectric element element from exceeding the predetermined level. The driver circuit may be used for a dot-matrix printer, which may be adapted to discharge the piezoelectric element for a comparatively long time where a distance between adjacent two dots to be formed is larger than a predetermined value.

    摘要翻译: 一种用于驱动压电元件(P)的驱动电路,包括具有DC电源(E)的充电电路和用于对压电元件充电的线圈(L)以及用于对压电元件进行放电的放电电路。 当压电元件被充电时,充电电路中的第一开关装置(TR1)被保持,直到元件的电压达到低于电源线路电压的预定电平。 设置在放电电路中的第二开关装置(TR2)在第一开关装置关闭时或在预定的稍后时间被导通,并且在所述第一开关装置再次接通的时间被关断 激活压电元件。 电压限制器(D1,D2)抑制压电元件的电压超过预定值。 驱动器电路可以用于点阵式打印机,该点阵打印机可适于将压电元件放电相对较长的时间,其中相邻的两个点之间的距离大于预定值。

    DIGITAL PRINTHEAD ENERGY CONTROL SYSTEM
    9.
    发明授权
    DIGITAL PRINTHEAD ENERGY CONTROL SYSTEM 失效
    能源控制系统的参数数字化头颅。

    公开(公告)号:EP0373187B1

    公开(公告)日:1994-05-11

    申请号:EP89902908.6

    申请日:1989-02-21

    IPC分类号: B41J2/30 B41J9/48

    CPC分类号: B41J2/30 B41J9/48

    摘要: A digital printhead energy control system includes a first storage device (20) for receiving hammer pulse duration data, a second storage device (22) for receiving hammer pulse energization data and for producing a trigger signal and hammer pulse energization signals, a counter (48, 50) for counting to a value equal to the value stored in the first storage device (20), a comparator (40, 42) for comparing the value stored in the first storage device (20) with the incrementing counter value, latch means (58) for latching the output of the comparator (40, 42) to produce an end pulse signal, first gating means (30) for combining the end pulse signal and a reset signal for controlling the clearing of the second storage device (22) and terminating the hammer pulse energization signals, and second gating means (38) for combining the trigger signal and a reset signal for controlling the clearing of the counter (48, 50).

    Printer and method for controlling it
    10.
    发明公开
    Printer and method for controlling it 失效
    Drucker und Verfahren zur Steuerung desselben。

    公开(公告)号:EP0570909A2

    公开(公告)日:1993-11-24

    申请号:EP93108090.7

    申请日:1993-05-18

    发明人: Kazuhisa, Aruga

    IPC分类号: B41J2/30

    摘要: Disclosed is a printer in which the driving time of its printer head (10) is determined based on a printer head driving mode selected as a result of control commands interpreted by a control command interpreter (45) and the actual driving voltage Vp used for driving the printer head, and printing is performed according to the determined driving time. The purpose is to set the driving time of the printer head (10) to a time suited to both the used type of recording paper and the actual head driving voltage.

    摘要翻译: 公开了一种打印机,其中,基于由控制命令解释器(45)解释的控制命令和用于驱动的​​实际驱动电压Vp而选择的打印头驱动模式来确定其打印头(10)的驱动时间 打印头,并根据确定的行驶时间进行打印。 目的是将打印机头(10)的驱动时间设置为适合于所使用的记录纸类型和实际头驱动电压的时间。