Seiko Epson Corporation

Junpei Yoshida

Toru Matsuyama

Yasuhiro Hosokawa

Tadashi Ishikawa

Yuichi Nishihara

Takanori Yokoi

Masashi Kamiyanagi

Takayuki Yazawa

Wataru Ito

Masaki Tsukida

Hiroshi Hirayama

Hidetoshi Yokoyama

Hisanori Maruyama

Masahiro Yamada

A liquid discharging apparatus includes an accommodating container accommodating conductive liquid, a rod-shaped first electrode accommodated in the accommodating container, a rod-shaped second electrode accommodated in the accommodating container, a detection portion that is electrically coupled to the first electrode and the second electrode and that detects a remaining amount of the liquid accommodated in the accommodating container in response to an electric signal from at least one of the first electrode and the second electrode, and a liquid discharging head discharging the liquid that is supplied from the accommodating container, in which the first electrode includes a first part having an outer periphery with a first length, and a second part having an outer periphery with a second length that is shorter than the first length.

Liquid discharging apparatus and liquid accommodating device

A liquid accommodating device includes an accommodating container accommodating conductive liquid, a first electrode accommodated in the accommodating container, a second electrode accommodated in the accommodating container, and a detection portion that is electrically coupled to the first electrode and the second electrode and that detects a remaining amount of the liquid accommodated in the accommodating container in response to an electric signal from at least one of the first electrode and the second electrode, in which the first electrode includes a first part where a first conduction portion formed with a conductive member is exposed, a second part where the first conduction portion is exposed, and a first insulation part that is provided between the first part and the second part and in which the first conduction portion is covered with an insulation member.

A liquid discharging apparatus includes an accommodating container accommodating conductive liquid, a first electrode accommodated in the accommodating container, a second electrode accommodated in the accommodating container, a detection portion that is electrically coupled to the first electrode and the second electrode and that detects a remaining amount of the liquid accommodated in the accommodating container in response to an electric signal from at least one of the first electrode and the second electrode, and a liquid discharging head discharging the liquid that is supplied from the accommodating container, in which the first electrode includes a first part where a distance between the first part and the second electrode is a first distance, and a second part where a distance between the second part and the second electrode is a second distance that is longer than the first distance.

A liquid consumption apparatus that detects a liquid surface level of a liquid inside a liquid container (ink tank), including: a circuit substrate; a substrate holder that holds the circuit substrate; and a control unit that detects the liquid surface level. A pair of electrically-conductive members consisting of a first electrically-conductive member and a second electrically-conductive member are provided for the liquid container. The circuit substrate is provided with a pair of terminals corresponding to the pair of electrically-conductive members. The substrate holder is provided with an elastic contact for connecting the pair of electrically-conductive members and the pair of terminals with each other. The elastic contact is a contact that is elastic in a first direction, where the first direction is a longitudinal direction of the pair of electrically-conductive members.

Liquid consumption apparatus

A liquid consumption device of the present invention has a holder in which an opening section is provided in a position to face a prism of an ink cartridge, a light emitting section, and a light receiving section. The holder has a region that changes a light amount of the reflected light emitted from the light emitting section and received by the light receiving section in a position spaced apart from the opening section at a predetermined distance in a main scanning direction.

Liquid consumption device having holder and detecting section

The liquid consuming apparatus includes a detection portionhaving a light-emitting portionand a light-receiving portion, a holderin which a liquid container provided with a prismis attachably and detachably installed, the holderhaving an opening portionprovided at a position facing the prismwhen the liquid container is installed, and a reflection portion, and a moving portion that relatively moves the holder in a first direction with respect to the detection portion. A first portion of the holderthat is peripheral to the reflection portionin a plan view of the holderas seen from the side of the detection portionhas an inclined face that inclines in a second direction intersecting the first direction.

Liquid consuming apparatus with a movable holder having an inclined face

There is provided a method of driving an electrophoretic display device including a display unit in which an electrophoretic element containing electrophoretic particles is interposed between first and second substrates and in which a plurality of pixels are arranged. The method includes lowering a contrast of the display unit, when a predetermined non-operation period elapses after the display unit displays an image.

Electrophoretic display device driving method, electrophoretic display device, and electronic apparatus

A liquid consumption apparatus includes a detection portion in which a light emitting portion and a light receiving portion are arranged, a liquid container that houses a liquid and in which a prism having a cavity is disposed, a carriage with respect to which the liquid container is attachable and detachable, and in which an opening is provided in a position that opposes the prism, and a light shielding portion disposed in the opening in the carriage. When a driving portion moves the carriage in a direction in which the light emitting portion and the light receiving portion are arranged, noise light produced by the prism bottom surface or cavity portion is suppressed, as a result of the light shielding portion blocking part of irradiated light.

Disclosed is a method of driving an electrophoretic device that includes an electrophoretic element having a first electrode, a second electrode, and an electrophoretic layer disposed between the first and second electrodes, and further includes a capacitor connected to the first electrode at one terminal. The method includes (a) applying a reference potential or a first potential higher than the reference potential to the first electrode of the electrophoretic element and the terminal of the capacitor and applying the reference potential to the second electrode of the electrophoretic element, and (b) applying a signal fluctuating between a second potential and a third potential to the second electrode subsequently to the step (a), the second potential being equal to or higher than the reference potential, the third potential being higher than the second potential and being equal to or lower than the first potential.

Electrophoretic device with capacitive storage and applied fluctuating signal, method of driving the same, and electronic apparatus

An electrophoretic display includes an electrophoretic display module including an element substrate, a counter substrate disposed on a display side of the element substrate, and an electrophoretic layer held therebetween; a first protective sheet disposed on a counter substrate side of the electrophoretic display module; a second protective sheet disposed on an element substrate side of the electrophoretic display module so as to face the first protective sheet with the electrophoretic display module disposed therebetween; and a frame member disposed between the first and second protective sheets along the periphery thereof so as to surround the electrophoretic display module. The frame member is integrated with the first and second protective sheets by welding the frame member to the first protective sheet and to the second protective sheet.

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Nagano, Japan

Junpei Yoshida