Seiko Epson Corporation

Yoshikawa Rf Systems Co., Ltd.

Yasuhiko Kosugi

Shuichi Nakano

Noboru Asauchi

Jun Sato

Shuichi Koganehira

Toshihisa Saruta

Takakazu Fukano

Atsushi Kobayashi

Takashi Suzuki

Tsuyoshi Hayashi

Kenji Matsumoto

Tomohiko Sano

Satoshi Shinada

Taku Ishizawa

Izumi Nozawa

Yuji Aoki

Hiroyuki Kawate

Satoru Hosono

Toshiki Usui

Hideo Yamazaki

Eiichi Ishii

Shinya Yamagata

Shinichi Yamada

Yoshihiro Nakamura

Kenta Masuzawa

Shigeki Fukushima

Noriyuki Inukai

Toshio Kumagai

Takahiro Imai

Takeo Seino

Hirokazu Nunokawa

Kenji Tsukada

Shuji Yonekubo

Takeshi Iwamuro

Kaoru Koike

Kazunaga Suzuki

Ryoji Fujimori

Yuichi Nishihara

Toshihiro Shinbara

Kenichi Kanbayashi

Ryohei Ito

Yasuhiro Ouki

Kenichi Oe

Tomoo Kubota

Yoshiyuki Koike

Katsutoshi Ozawa

Hidetaka Sakurai

Kohei Kumamoto

Kazuma Fujihashi

In a board that includes a plurality of contact portions that are arranged to contact corresponding apparatus-side terminals when the board is mounted in a printing apparatus, some contact portions are disposed in a first region, and the remaining contact portions are disposed in a second region. The some contact portions include a first contact portion, a second contact portion, a third contact portion, and a fourth contact portion. The remaining contact portions include a fifth contact portion. The some contact portions are arranged in a first pattern in the first region and the remaining contact portions are arranged in a second pattern in the second region, and the first pattern is asymmetrical to the second pattern with respect to a first virtual line.

Board, liquid accommodation container, and printing system

A liquid ejecting apparatus includes a driven element that is driven by a drive signal; an ejection head that ejects a liquid when the driven element is driven; a drive circuit that outputs the drive signal, the drive circuit including an amplifier circuit that includes a first transistor and amplifies, based on an amplification voltage and through an operation of the first transistor, a base drive signal based on which the drive signal is generated; and a leakage current detection circuit that detects a leakage current in the drive circuit. The leakage current detection circuit is electrically connected to the first transistor included in the amplifier circuit to which the amplification voltage is supplied.

Liquid ejecting apparatus

A device outputs a first low voltage to a first terminal at a first timing in a period in which a voltage input to a second terminal is a high voltage. After outputting the first low voltage, the device outputs a second high voltage to the first terminal at a second timing in a period in which the voltage input to the second terminal is a low voltage. After outputting the second high voltage, the device outputs a second low voltage to the first terminal at a third timing in a period in which the voltage input to the second terminal is a high voltage.

Device, board, liquid accommodation container, and printing system

Circuit board for computer printers

A liquid ejecting apparatus includes a digital signal output circuit and a liquid accommodating container, in which the print head includes a supply port, a nozzle plate, a substrate having first and second sides positioned opposite to each other, third and fourth sides positioned opposite to each other, a first surface, and a second surface, a connector to which the digital signal is input, and an integrated circuit to which the digital signal is input via the connector and that outputs an abnormality detection signal, the connector is provided on the first surface, the integrated circuit is provided on the second surface, the substrate includes an annular wiring electrically coupled to the integrated circuit, and the annular wiring is disposed in an annular shape along an outer periphery of the substrate including the first side, the second side, the third side, and the fourth side.

A control unit of a liquid consumption apparatus performs determination processing that determines whether or not each of a first housing container and a second housing container is an unsuitable container that does not satisfy a use condition, performs switching decision that decides switching of a supply source that supplies a liquid composition to a liquid consumption unit to the second housing container when the first housing container is determined to be the unsuitable container while the liquid composition is being supplied from the first housing container to the liquid consumption unit, and continues supply of the liquid composition from the first housing container to the liquid consumption unit regardless of whether or not the second housing container is the unsuitable container until when the switching decision is performed while the liquid composition is being supplied from the first housing container to the liquid consumption unit.

Liquid consumption apparatus and control method of liquid consumption apparatus

A liquid container has: a liquid storage section that stores a liquid; a surrounding wall that envelops the liquid storage section; a liquid supply opening formed in the surrounding wall, the liquid supply opening enabling the liquid to be supplied from the liquid storage section to the liquid introducing section; a first storage device that can be electrically coupled to the holder-side terminal through a first contact section; and a second storage device that can be electrically couple to the holder-side terminal through a second contact section. Even when the liquid container is rotated by 180 degrees around the central axis of the liquid supply opening and is mounted in the holder, either of the first storage device and second storage device is coupled to the holder-side terminal. Information about the amount of the liquid is stored in both the first storage device and the second storage device.

Liquid container and liquid ejecting system

Growing community of inventors

Nagano-ken, Japan

Yasuhiko Kosugi