DEVICE TO BE COUPLED TO A PLURALITY OF TERMINALS OF A PRINT CARTRIDGE

    公开(公告)号:EP4205986A1

    公开(公告)日:2023-07-05

    申请号:EP22168410.3

    申请日:2022-04-14

    IPC分类号: B41J2/175

    摘要: A device (120) outputs a first low voltage (FS) to a first terminal (210) at a first timing (t1) in a period (RT1) in which a voltage input to a second terminal (220, 230, 240) is a high voltage. After outputting the first low voltage, the device (120) outputs a second high voltage (SS) to the first terminal (210) at a second timing (t2) in a period (RT2) in which the voltage input to the second terminal (220, 230, 240) is a low voltage. After outputting the second high voltage, the device (120) outputs a second low voltage to the first terminal (210) at a third timing (t3) in a period in which the voltage input to the second terminal (220, 230, 240) is a high voltage.

    DEVICE CONFIGURED TO CONTACT THE TERMINALS OF A PRINT CARTRIDGE

    公开(公告)号:EP4205985A1

    公开(公告)日:2023-07-05

    申请号:EP22168405.3

    申请日:2022-04-14

    IPC分类号: B41J2/175

    摘要: In a board (120), among contact portions (cp), some contact portions (210, 220, 230, 240) are disposed in a first region, the remaining contact portions (250) are arranged in a second region. The some contact portions include a first contact portion (210), a second contact portion (220), a third contact portion (230), and a fourth contact portion (240). The remaining contact portions include a fifth contact portion (250). The some contact portions and the remaining contact portions are asymmetrically arranged with respect to a first virtual line (C1).

    PRINTHEAD AND INSPECTION METHOD OF PRINTHEAD

    公开(公告)号:EP4116101A1

    公开(公告)日:2023-01-11

    申请号:EP22183277.7

    申请日:2022-07-06

    IPC分类号: B41J2/045

    摘要: Provided is a printhead that performs printing by supplying a drive signal inputted to a second terminal to a drive element according to print data inputted to a first terminal, the printhead including: the first terminal; the second terminal; a determination circuit configured to perform based on different criteria, first determination to determine, in response to a first signal inputted to the first terminal, whether a potential of the second terminal is normal and second determination to determine, in response to a second signal inputted to the first terminal, whether the potential of the second terminal is normal; and a permission circuit configured to permit printing when the potential of the second terminal is determined to be normal in the first determination and second determination and does not permit printing when the potential of the second terminal is determined to be not normal in the first determination or second determination.

    PRINTHEAD CONTROL CIRCUIT AND LIQUID EJECTING APPARATUS

    公开(公告)号:EP4116100A1

    公开(公告)日:2023-01-11

    申请号:EP22183274.4

    申请日:2022-07-06

    IPC分类号: B41J2/045

    摘要: In a printhead control circuit causing a printhead to execute printing, the printhead performing abnormality detection in response to a first signal inputted to a second terminal in a state in which the potential of a first terminal is a first potential and a second signal inputted to the second terminal in a state in which the potential of the first terminal is a second potential, one of the first and second potentials is higher than the potentials of the first and second signals, and a signal circuit is configured to output the first and second signals. The signal circuit outputs the first signal to the second wire electrically coupled to the second terminal in a state in which the first wire is being supplied with a first voltage signal at the first potential and outputs the second signal to the second wire after outputting the first signal in a state in which the first wire is being supplied with a second voltage signal at the second potential, which is different from the first potential, to cause the printhead to execute the abnormality detection in response to the first signal, the second signal, the first voltage signal, and the second voltage signal.