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    Thermal print head, manufacturing method of the same, and thermal printer
    1.
    发明授权
    Thermal print head, manufacturing method of the same, and thermal printer 有权

    公开(公告)号：US12023940B2

    公开(公告)日：2024-07-02

    申请号：US17961009

    申请日：2022-10-06

    Applicant: ROHM CO., LTD.

    Inventor： Satoshi Kageyama

    IPC: B41J2/345 ,  B41J2/325 ,  B41J2/335

    CPC classification number: B41J2/3355 ,  B41J2/33515 ,  B41J2/33525 ,  B41J2/3353 ,  B41J2/33535 ,  B41J2/3354 ,  B41J2/3357 ,  B41J2/3359 ,  B41J2/345 ,  B41J2/325 ,  B41J2/3351 ,  B41J2/3352

    Abstract: A thermal print head includes a head substrate (11) having a main surface (11a) on which a convex part (12) is formed, a resistor layer (21) that is formed on the main surface (11a) and the convex part (12), a wiring layer (22) that covers the resistor layer (21) such that the resistor layer (21) is exposed at a heat generating part (20) formed at a part of the convex part (12), and a protective layer (25) that is formed on the main surface (11a) of the head substrate (11) and covers the resistor layer (21) and the wiring layer (22). The resistor layer (21) has a main resistor layer that contains tantalum, and at least one of a first sub-resistor layer that contains tantalum nitride and is stacked below the tantalum layer and a second sub-resistor layer that contains tantalum nitride and is stacked on the tantalum layer. The nitrogen content of tantalum nitride contained in the first sub-resistor layer and the second sub-resistor layer exceeds a predetermined value such that the tantalum nitride is deposited in a stable structure.

    PRINTER AND PRINTER SYSTEM
    2.
    发明申请
    PRINTER AND PRINTER SYSTEM 审中-公开

    公开(公告)号：US20190210377A1

    公开(公告)日：2019-07-11

    申请号：US16351608

    申请日：2019-03-13

    Applicant: TOSHIBA TEC KABUSHIKI KAISHA

    Inventor： Yoshitaka Kuniya

    IPC: B41J2/335 ,  B41J29/38 ,  G06K15/00 ,  B41J2/32

    CPC classification number: B41J2/3352 ,  B41J2/32 ,  B41J29/38 ,  G06K15/00 ,  G06K15/1809

    Abstract: In accordance with an embodiment, a printer connectable to a host device comprises a printing module for carrying out printing on a medium, a reception module for receiving a first control signal for driving the printing module which is generated based on an image indicated by data which is a printing object from the host device, and a printing processing module for printing the image indicated by the data which is the printing object on the medium by driving the printing module according to the first control signal received by the reception module.

    SECURE THERMAL PRINT HEAD
    3.
    发明申请
    SECURE THERMAL PRINT HEAD 审中-公开

    公开(公告)号：US20190143712A1

    公开(公告)日：2019-05-16

    申请号：US15808988

    申请日：2017-11-10

    Applicant: Datamax-O'Neil Corporation

    Inventor： Sébastien Michel Marie Joseph D'Armancourt

    IPC: B41J2/335 ,  G06F21/44 ,  H04L9/32

    CPC classification number: B41J2/3352 ,  B41J2/355 ,  G06F21/10 ,  G06F21/44 ,  H04L9/3234 ,  H04L9/3297

    Abstract: Methods and apparatus to detect if an authorized thermal print head (TPH) has been installed in a specific model or manufacturer printer are provided. The method provides a system to check the resistivity or impedance value at the TPH side, either upon printer boot-up or during printing operation. During printing operation, the impedance measurement may be executed for a time period at a fixed periodicity and/or one or more events. Based on the impedance measurement, the printer may determine that the impedance value matches the authorized TPH range value. In a case of non-matching impedance values or change of impedance values, the printer may prevent printing operation until an authorized TPH is installed.

    Drive circuit for driving a capacitive load
    7.
    发明授权
    Drive circuit for driving a capacitive load 有权
    用于驱动电容性负载的驱动电路

    公开(公告)号：US09586396B2

    公开(公告)日：2017-03-07

    申请号：US15144972

    申请日：2016-05-03

    Applicant: Seiko Epson Corporation

    Inventor： Toru Kashimura

    IPC: B41J29/38 ,  B41J2/045 ,  B41J2/30 ,  B41J2/335 ,  B41J2/355 ,  H03K17/687 ,  H03K19/0185 ,  B41J2/14

    CPC classification number: B41J2/04541 ,  B41J2/04523 ,  B41J2/04548 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04593 ,  B41J2/04596 ,  B41J2/14072 ,  B41J2/14201 ,  B41J2/14233 ,  B41J2/30 ,  B41J2/3352 ,  B41J2/355 ,  B41J2002/14491 ,  H03K17/6871 ,  H03K19/018507

    Abstract: A liquid discharge apparatus includes: a modulation circuit that generates a modulated signal by pulse-modulating a source signal; a transistor that amplifies the modulated signal to generate an amplified modulated signal; a low-pass filter that includes an inductor and a capacitor and smoothes the amplified modulated signal to generate a drive signal; a feedback circuit that returns the drive signal to the modulation circuit; a circuit board; a piezoelectric element that is displaced by application of the drive signal thereto. The circuit board has a first mounting surface and a second mounting surface. The capacitor and the feedback circuit are mounted and a first ground wiring connected to the capacitor and a second ground wiring connected to the feedback circuit are provided on the first mounting surface. At least one of the modulation circuit, the transistor, and the inductor is mounted on the second mounting surface.

    Abstract translation: 液体排出装置包括：调制电路，其通过对源极信号进行脉冲调制而产生调制信号; 放大调制信号以产生放大的调制信号的晶体管; 包括电感器和电容器的低通滤波器，并且对经放大的调制信号进行平滑以产生驱动信号; 将驱动信号返回到调制电路的反馈电路; 电路板; 通过施加驱动信号而移位的压电元件。 电路板具有第一安装表面和第二安装表面。 安装电容器和反馈电路，并且在第一安装表面上设置连接到电容器的第一接地布线和连接到反馈电路的第二接地布线。 调制电路，晶体管和电感器中的至少一个安装在第二安装表面上。

    LIQUID DISCHARGE APPARATUS AND HEAD UNIT
    8.
    发明申请
    LIQUID DISCHARGE APPARATUS AND HEAD UNIT 有权
    液体排放装置和头部

    公开(公告)号：US20160046119A1

    公开(公告)日：2016-02-18

    申请号：US14818563

    申请日：2015-08-05

    Applicant: Seiko Epson Corporation

    Inventor： Toru KASHIMURA

    IPC: B41J2/045

    CPC classification number: B41J2/04541 ,  B41J2/04523 ,  B41J2/04548 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04593 ,  B41J2/04596 ,  B41J2/14072 ,  B41J2/14201 ,  B41J2/14233 ,  B41J2/30 ,  B41J2/3352 ,  B41J2/355 ,  B41J2002/14491 ,  H03K17/6871 ,  H03K19/018507

    Abstract: A liquid discharge apparatus includes: a modulation circuit that generates a modulated signal by pulse-modulating a source signal; a transistor that amplifies the modulated signal to generate an amplified modulated signal; a low-pass filter that includes an inductor and a capacitor and smoothes the amplified modulated signal to generate a drive signal; a feedback circuit that returns the drive signal to the modulation circuit; a circuit board; a piezoelectric element that is displaced by application of the drive signal thereto. The circuit board has a first mounting surface and a second mounting surface. The capacitor and the feedback circuit are mounted and a first ground wiring connected to the capacitor and a second ground wiring connected to the feedback circuit are provided on the first mounting surface. At least one of the modulation circuit, the transistor, and the inductor is mounted on the second mounting surface.

    Abstract translation: 液体排出装置包括：调制电路，其通过对源极信号进行脉冲调制而产生调制信号; 放大调制信号以产生放大的调制信号的晶体管; 包括电感器和电容器的低通滤波器，并且对经放大的调制信号进行平滑以产生驱动信号; 反馈电路，其将驱动信号返回到调制电路; 电路板; 通过施加驱动信号而移位的压电元件。 电路板具有第一安装表面和第二安装表面。 安装电容器和反馈电路，并且在第一安装表面上设置连接到电容器的第一接地布线和连接到反馈电路的第二接地布线。 调制电路，晶体管和电感器中的至少一个安装在第二安装表面上。

    THERMAL HEAD AND THERMAL PRINTER EQUIPPED WITH THE THERMAL HEAD
    9.
    发明申请
    THERMAL HEAD AND THERMAL PRINTER EQUIPPED WITH THE THERMAL HEAD 有权
    热头和热打印机配有热头

    公开(公告)号：US20150352858A1

    公开(公告)日：2015-12-10

    申请号：US14655544

    申请日：2013-12-26

    Applicant: KYOCERA CORPORATION

    Inventor： Ayumi NODA ,  Tadashi MITSUOKA ,  Yasumitsu YAMAMOTO

    IPC: B41J2/335

    CPC classification number: B41J2/3352 ,  B41J2/335 ,  B41J2/3351 ,  B41J2/3353 ,  B41J2/3357

    Abstract: A thermal head capable of decreasing the possibility of causing wrinkles in a recording medium is provided. A thermal head includes: a substrate; a heat generating portion disposed on the substrate; a driving IC disposed on the substrate and controlling actuation of the heat generating portion; a covering member covering the driving IC; and a projection portion disposed on the substrate and making contact with a recording medium. The substrate includes a first region and a second region in a plan view, the first region being defined by extending an area where the driving IC is disposed in a sub scanning direction and the second region being an area other than the first region. The projection portion is disposed on the second region closer to the heat generating portion than the area where the driving IC is disposed.

    Abstract translation: 提供了能够降低在记录介质中引起皱纹的可能性的热敏头。 热敏头包括：基底; 设置在所述基板上的发热部; 驱动IC，其设置在所述基板上并控制所述发热部的致动; 覆盖驱动IC的覆盖部件; 以及设置在基板上并与记录介质接触的突出部。 基板在平面图中包括第一区域和第二区域，第一区域通过将驱动IC设置在副扫描方向上的区域延伸而第二区域是除了第一区域之外的区域。 突出部设置在比设置驱动IC的区域更靠近发热部的第二区域上。

    Thick film print head structure and control circuit
    10.
    发明授权
    Thick film print head structure and control circuit 有权
    厚膜打印头结构和控制电路

    公开(公告)号：US09186905B2

    公开(公告)日：2015-11-17

    申请号：US13481546

    申请日：2012-05-25

    Applicant: Takeshi Toyosawa ,  Jiun-Chung Wang ,  Chung I. Tan

    Inventor： Takeshi Toyosawa ,  Jiun-Chung Wang ,  Chung I. Tan

    IPC: B41J2/14 ,  B41J2/335 ,  B41J2/345 ,  B41J2/355

    CPC classification number: B41J2/3352 ,  B41J2/345 ,  B41J2/355

    Abstract: A new structure (FIG. 11) for a thick-film thermal printhead and a variety of implementation approaches for controlling such a printhead. In the structure of the invention, the conductive lead at each end of the heater element is switched to either the power supply (Vhd) or ground, depending on the corresponding nib data bit. The improvement over a traditional center-tap structure (FIG. 1) is the reduction of density of conductive leads to achieve the resolution of printed dots. Compared to the printhead structure of alternated conductive system, either with diodes (FIG. 2) or without diodes (FIG. 4), which both suffer from the introduction of undesirable leaking currents, the printhead structure of the invention provides the advantage of eliminating leakage current completely. Control of the thermal printhead according to the invention is based on the sequential exclusive-OR (XOR) logic operation applied to the shifted-in nib data bit stream. The XOR functionality may be incorporated in the driver IC, embedded in the raster data processing FPGA (Field Programming Gate Array), or implemented in the form of a lookup table in the memory block of a main processor system. All prior art advanced controls based on a multi-pulse strategy can be applied directly from those used in prior art printhead structures to the controls for the thermal printhead for this invention without modification. A new driver IC (FIG. 26) is also disclosed according to the invention in which the outputs are SPDT (Single-Pole-Double-Throw) switches and the built-in XOR gates can be configured to act in the pass-through mode, if required, so that the new driver IC may be used as a traditional driver IC.

    Abstract translation: 用于厚膜热敏打印头的新结构（图11）和用于控制这种打印头的各种实现方法。 在本发明的结构中，取决于对应的笔尖数据位，加热元件的每一端处的导电引线被切换到电源（Vhd）或接地。 传统的中心抽头结构（图1）的改进是降低导电引线的密度以实现印刷点的分辨率。 与交替导电系统的打印头结构相比，无论是二极管（图2）还是没有二极管（图4），它们都会引入不希望的漏电流，本发明的打印头结构提供了消除泄漏的优点 目前完全 根据本发明的热打印头的控制基于应用于移入的笔尖数据比特流的顺序异或（XOR）逻辑运算。 XOR功能可以并入嵌入在光栅数据处理FPGA（Field Programming Gate Array）中的驱动器IC中，或者以主处理器系统的存储器块中的查找表的形式实现。 基于多脉冲策略的所有现有技术的高级控制可以直接从现有技术的打印头结构中使用的先进控制应用于本发明的热打印头的控制，而无需修改。 根据本发明还公开了一种新的驱动器IC（图26），其中输出是SPDT（单极双掷）开关，并且内置的异或门可被配置为以直通模式 如果需要，使得新的驱动器IC可以用作传统的驱动器IC。

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