Tape drive and printing apparatus
    31.
    发明授权
    Tape drive and printing apparatus 有权
    磁带机和打印机

    公开(公告)号:US08007190B2

    公开(公告)日:2011-08-30

    申请号:US12401871

    申请日:2009-03-11

    IPC分类号: B41J2/32 B41J25/304

    摘要: A tape drive for use in for example a transfer printing apparatus to drive a printer ribbon. The printer ribbon is mounted on two spools each of which is driven by a respective stepper motor. A controller controls the energization of the motor such that the ribbon is transported in at least one direction between spools mounted on the spool support. The controller is operative to energize both motors to drive the spools of ribbon in the direction of ribbon transport to achieve push-pull operations. Ribbon tension is monitored to enable accurate control of ribbon supply and ribbon take-up, the ribbon tension being monitored, for example, by monitoring power supply to the two stepper motors.

    摘要翻译: 用于例如用于驱动打印机色带的转印打印设备的磁带机。 打印机色带安装在两个卷轴上,每个卷轴由相应的步进电机驱动。 控制器控制电动机的通电,使得色带在安装在卷轴支撑件上的卷轴之间沿至少一个方向传送。 控制器可操作以对两个电动机通电,以沿色带输送方向驱动色带卷轴,以实现推挽操作。 监控色带张力,以便能够准确控制色带供应和色带卷取,例如通过监控两台步进电机的电源来监测色带张力。

    Thermal transfer label printer with rewind control, and method for multiple label printing
    34.
    发明授权
    Thermal transfer label printer with rewind control, and method for multiple label printing 失效
    具有快退控制的热转印标签打印机,以及多标签打印方法

    公开(公告)号:US07064774B2

    公开(公告)日:2006-06-20

    申请号:US10702175

    申请日:2003-11-05

    IPC分类号: B41J2/325

    摘要: This label has a printing head (1) which may be stationary or mob vale along a guide (2), a ribbon (3) bearing a printing medium, a ribbon pay-out spool (4), a ribbon tale-up spool (5) driven by a stepper motor (6), a control device (8) that governs the printing head (1), and a means for controlling the advance of the ribbon, (3). Said means for controlling the advance of the ribbon (3) comprises a device (7) for detecting the spin of the pay-out spool (4) and sending a signal to the control device (8) that reports on the spinning of the pay-out spool (4) when the stepper motor (6) makes the take-up spool (5) spin at a certain rate. The invention also includes a method for using this label printer for multiple label printing.

    摘要翻译: 该标签具有打印头(1),其可以沿着引导件(2),带有打印介质的色带(3),色带放出卷轴(4),色带卷轴卷轴(4) 5)由步进电动机(6)驱动,控制装置(8),其控制打印头(1),以及用于控制色带前进的装置(3)。 用于控制色带(3)的前进的所述装置包括用于检测放出卷轴(4)的旋转的装置(7),并向控制装置(8)发送一个信号,该控制装置报告纺纱 当步进马达(6)使卷取卷轴(5)以一定的速度旋转时,输出轴(4)。 本发明还包括使用该标签打印机进行多标签打印的方法。

    Ink ribbon feeder that equalizes ribbon tension over the entire ink
ribbon width
    35.
    发明授权
    Ink ribbon feeder that equalizes ribbon tension over the entire ink ribbon width 失效
    色带供料器,可在整个墨带宽度上均衡色带张力

    公开(公告)号:US5993091A

    公开(公告)日:1999-11-30

    申请号:US996205

    申请日:1997-12-22

    CPC分类号: B41J33/34 B41J17/24 B41J35/08

    摘要: An ink ribbon feeder wherein a feed roll support section rotatably supports an ink ribbon feed roll and a take-up roll support section rotatably supports a take-up roll support section; a first driving section turns a take-up roll to wind the ink ribbon in an ink ribbon take-up direction, and a second driving section turns the feed roll in the opposite direction of the first driving section, to apply a tension to the ink ribbon. The first driving section and the second driving section are disposed on the same side of both the take-up roll and the feed roll in the ribbon take-up direction. The recording unit, inclusive of the recording head, the ink ribbon feed roll and the take-up roll are mounted in various ways to equalize the tension over the width of the ink roller.

    摘要翻译: 一种色带馈送器,其中馈送辊支撑部分可旋转地支撑色带馈送辊和卷取辊支撑部分可旋转地支撑卷取辊支撑部分; 第一驱动部转动卷取辊以使墨带卷绕在墨带卷取方向上,第二驱动部使进给辊沿第一驱动部的相反方向转动,以向墨水施加张力 色带。 第一驱动部和第二驱动部在带卷收方向上配置在卷取辊和进给辊的同一侧。 记录单元,包括记录头,色带供给辊和卷取辊以各种方式安装以均衡墨辊宽度上的张力。

    Ribbon tension control with dynamic braking and variable current sink
    36.
    发明授权
    Ribbon tension control with dynamic braking and variable current sink 失效
    带张力控制与动态制动和可变电流吸收

    公开(公告)号:US5490638A

    公开(公告)日:1996-02-13

    申请号:US843875

    申请日:1992-02-27

    摘要: A pair of ribbon spools are independently operated by respective motors to rotate in one direction until the ribbon end and then in the opposite direction, and so forth. Spools alternately function as feed and take-up spools and motors as a drive and drag motors, respectively To eliminate excess drag motor cogging, a ribbon tension control system uses dynamic braking of the drag motor, and includes drag circuitry with rectifier bridge circuitry and a constant current sink settable for drawing predefined selectable levels of current from the windings of the drag motor. The motors are polyphase, permanent magnet, stepper motors which, when turned by the ribbon, generate alternating back emf signals in their windings. A full-wave rectifier bridge is connected to each winding of the drag motor with bridge outputs connected to a common sink which is an emitter follower circuit whose current level is set and maintained by an operational amplifier. The current level of the emitter follower circuit is set by adjusting the reference voltage of the amplifier using a resistive voltage divider network connected to a binary switch controlled by a microprocessor with a memory. The microprocessor monitors the back emf signals, periodically adjusts the rotational speed of the drive motor depending on distribution of ribbon, and adjusts the sink based on drag value tables stored in memory.

    摘要翻译: 一对带状卷轴由相应的马达独立地操作,以在一个方向上旋转直到带状端部然后沿相反的方向转动,等等。 轮轴交替作为进给和卷取线轴和马达分别用作驱动和拖动马达。为了消除多余的拖拉马达齿槽,色带张力控制系统使用拖拉电机的动态制动,并且包括具有整流桥电路和 恒定电流可设置用于从拖曳电机的绕组中抽出预定的可选电流。 电动机是多相,永磁体,步进电机,当由带状物转动时,它们在其绕组中产生交替的反电动势信号。 全波整流桥连接到拖曳电机的每个绕组,其桥接输出连接到公共接收端,公共接收端是电流电平由运算放大器设置和维持的射极跟随器电路。 通过使用连接到由具有存储器的微处理器控制的二进制开关的电阻分压器网络来调节放大器的参考电压来设置射极跟随器电路的电流电平。 微处理器监视反电动势信号,根据色带的分布周期性地调节驱动电动机的转速,并根据存储在存储器中的拖动值表调整接收器。

    Method and apparatus for controlling tension in tape progressed along a
feed path
    38.
    发明授权
    Method and apparatus for controlling tension in tape progressed along a feed path 失效
    用于控制带中的张力的方法和装置沿着进给路径进行

    公开(公告)号:US4788558A

    公开(公告)日:1988-11-29

    申请号:US12209

    申请日:1987-02-06

    摘要: A method and apparatus for controlling the tension in a tape (16, 18) along a feed path between a reel (84, 112) and a processing station (20) is disclosed. A motor (146, 162) having a controllable torque is coupled to the reel. An advancement mechanism (22, 142) advances the tape through the processing station. Sensors (190, 192) produce signals proportional to the advancement of the tape through the processing station as well as the advance of the reel. These signals are compared to produce an indicia of the present operating radius of the tape on the reel, which is dependent upon the amount of tape wound upon the reel. With this indicia determined, empirically derived data can be consulted to determined the energization of the motor necessary to produce a torque that will compensate for the changing tape diameter on the reel, maintaining the tension in the tape substantially constant independent of the transfer of tape with respect to the reel. In a preferred embodiment, this arrangement is employed to control the tension in thermal transfer ribbon (16) and receiving paper (18) between a print roller (22) and their respective reels (146, 162) in a thermal transfer printer (10).

    摘要翻译: 公开了一种用于控制沿着卷轴(84,112)和处理站(20)之间的进给路径的带(16,18)中的张力的方法和装置。 具有可控扭矩的电动机(146,162)联接到卷轴。 前进机构(22,142)使带子前进通过处理站。 传感器(190,192)产生与通过处理站的带的前进成比例的信号以及卷轴的前进。 将这些信号进行比较以产生卷轴上的带的当前操作半径的标记,这取决于卷绕在卷轴上的带的量。 在确定了该标记的情况下,可以查阅经验导出的数据,以确定产生扭矩的马达的通电,该扭矩将补偿卷轴上的更换带直径,从而保持带中的张力基本上恒定,而与带的传送无关, 相对于卷轴。 在优选实施例中,这种布置用于控制热转印打印机(10)中的热转印带(16)和接收纸(18)之间的张力在打印辊(22)和它们各自的卷轴(146,162)之间, 。

    Ribbon tension control
    39.
    发明授权
    Ribbon tension control 失效
    丝带张力控制

    公开(公告)号:US4573645A

    公开(公告)日:1986-03-04

    申请号:US554736

    申请日:1983-11-23

    摘要: A ribbon tension control for controlling the tension of ribbon traveling between a rotating supply spool and a rotating take-up spool varies the amount of braking torque applied to the supply spool to hold ribbon tension constant as the distribution of ribbon between the spools changes. A generator rotationally coupled to the supply spool produces braking torque to resist the rotation of the spool when the generator windings are electrically loaded. The loading of the generator is controlled by processing feedback signals emitted by the generator to provide periodic load switching signals. Processing of the feedback signal is accomplished in the exemplary embodiment by a drag lookup table which is addressed by the feedback signal. The drag lookup table produces a duty cycle value which is used to determine the duty cycle of the switching signal, which, in turn, controls the electrical loading of the generator. Because electrical loading of the generator at the switching signal rate modulates the feedback signal which it emits, the period of the switching signal is sufficiently different from that of the feedback signal to permit separation of the feedback signal from the switching signal.

    摘要翻译: 用于控制在旋转供给卷轴和旋转卷取卷轴之间行进的带张力的卷带张力控制器改变施加到供应卷轴的制动扭矩的量,以在卷轴之间的带分布改变时保持色带张力常数。 当发电机绕组被电负载时,旋转地联接到供应线轴的发电机产生制动力矩以抵抗线轴的旋转。 通过处理发电机发出的反馈信号来控制发电机的负载,以提供周期性负载切换信号。 在示例性实施例中,由反馈信号寻址的拖动查找表来完成反馈信号的处理。 拖曳查找表产生占空比值,该占空比值用于确定开关信号的占空比,其继而控制发电机的电负载。 由于发生器在开关信号速率下的电荷负载调制其发出的反馈信号,所以开关信号的周期与反馈信号的周期充分不同,以允许反馈信号与开关信号分离。