Fuji Xerox Co., Ltd.

Fujifilm Corporation

Ihi Corporation

Citizen Holdings Company, Ltd.

Citizen Watch Company, Ltd.

Kabushiki Kaisha Toshiba

Atsushi Murakami

Masaki Kataoka

Masashi Hiratsuka

Kishiharu Itazu

Tetsuzo Kadomatsu

Masahito Katada

Hiroshi Shibata

Yuko Katada, Legal Representative

Naoki Fujiwara

Shigeru Watanabe

Hiroshi Ikeda

Shinsuke Matsuno

Naoki Morita

Kenji Takano

Yoshiyuki Iso

Katsushi Amarume

Manabu Numata

Jian Huang

Natsuki Katada, Legal Representative

Daichi Katada, Legal Representative

Kohei Murakami

Mariko Katou

Akira Sakamoto

Masaki Kobayashi

Yasuhiro Ogasawara

Masakazu Okuda

Jun Isozaki

Takeshi Zengo

Akira Mihara

Hiroaki Satoh

Yasuo Abuyama

Takehiro Niitsu

Tomoo Ikeda

Masami Furuya

Yukari Motosugi

Izumi Yamamoto

Mami Hatanaka

Susumu Hirakata

Toshinori Ishiyama

Yumiko Sakamaki

Shiko Nakamura

Katsumi Kimoto

Shinya Okuno

Akihiro Shioji

Takashi Moriya

Norihisa Takemoto

An ejection device includes: ejection portions that eject liquids; supply portions that supply the liquids to the ejection portions respectively; a common pressure applying mechanism that applies pressure onto the liquids at the supply portions; and a pressure difference generating mechanism that generates a relative pressure difference between the ejection portions for the liquids to be supplied from the supply portions to the ejection portions.

Ejection device and image forming apparatus

Provided is a gas separation apparatus advantageous in suppression of increase in pressure loss and achievement of reduced size and weight, thereby reducing costs. The gas separation apparatus causes an absorbent to flow down along the surface of a packing arranged in a treatment chamber, and supplies to the treatment chamber a gas to be treated which contains a target gas component, and then causes the gas to be treated and the absorbent flowing down along the surface of the packing to come into gas-liquid contact. Thus the target gas component contained in the gas to be treated is absorbed into the absorbent and separated or recovered from the gas to be treated. The packing has at least one packing unit configured by a plurality of expanded metal plates standing vertically and being aligned.

Gas separation apparatus and packing

The gas separation device separates or captures a target gas component from a gas to be processed by: causing an absorbing liquid to flow down on a surface of a packing disposed inside a processing tank while supplying the gas to be processed containing the target gas component into the processing tank; bringing the absorbing liquid flowing down on the surface of the packing and the gas to be processed into gas-liquid contact; and thereby causing the absorbing liquid to absorb the target gas component contained in the gas to be processed. The packing includes at least one packing unit formed from multiple expanded metal plates, which are disposed vertically and arranged in parallel. Each expanded metal plate includes strands forming the openings which are arranged like stairs. Each strand is inclined to the vertical direction at an angle in a range from 48&#xb0; to 73&#xb0;.

Gas separation device and packing

An ejection apparatus is provided with a plurality of ejection units, a controller that controls a temperature of a liquid, and a supply mechanism that includes a plurality of supply units. The plurality of supply units flow the liquid in a predetermined flow direction. Respective portion of the plurality of supply units in the flow direction are connected to the ejection units to supply the liquid to the ejection units. A downstream side portion of one of the supply units in the flow direction is connected to another one of supply units via a heat transfer member.

Ejection apparatus

A droplets drying device includes: an illuminating unit that applies infrared laser light to droplets that have been ejected onto a recording medium by an ejecting unit that ejects droplets in accordance with an image to be formed; and a control unit that controls at least one of timing, a position or positions, and an amount or amounts of application of infrared laser light to the droplets by the illuminating unit in accordance with an attribute that influences image quality of an image formed.

Droplets drying device, computer readable medium storing program for droplets drying, and image forming apparatus

A degasifier includes a gas chamber, a degasification unit and a resistance applying unit. The gas chamber is separated from a liquid flow path by a transmission member capable of transmitting a gas dissolving in a liquid in the liquid flow path. The degasification unit expels the gas dissolving in the liquid from the liquid by discharging the gas in the gas chamber through a discharge path so that a pressure in the gas chamber is negative. The resistance applying unit applies an inflow resistance to atmosphere which flows into the discharge path so that the gas chamber is maintained at a pressure at which the liquid can be degasified at the time of the discharging by the degasification unit while the discharge path is open to the atmosphere at all times.

Degasifier and image forming apparatus

The inkjet recording apparatus includes: a supply manifold having an inlet port to which a first main flow channel is connected, the liquid supplied from a tank through the first main flow channel being stored in the supply manifold, the supply manifold being connected to supply ports of head modules; a collection manifold having an outlet port to which a second main flow channel is connected, the liquid to be collected to the tank through the second main flow channel being stored in the collection manifold, the collection manifold being connected to discharge ports of the head modules; and a first bypass flow channel which connects the supply manifold to the collection manifold, wherein an end of the first bypass flow channel is connected to an upper side of an end of the supply manifold on a side opposite to a side where the inlet port is arranged.

Inkjet recording apparatus having thick manifolds for large volume circulation of ink

A droplet ejection apparatus includes droplet ejection units each including a supply port and an ejection port, a common supply flow path, a common discharge flow path, supply flow paths that connect the supply port to the common supply flow path, openable mechanisms provided at the supply flow paths, discharge flow paths that connect the ejection port to the common discharge flow path, one-way valves provided at the discharge flow paths, a pressure applying unit, and a controller. When performing a maintenance operation of a selected droplet ejection unit, the controller applies a pressure with the pressure applying unit so that the pressure in the plural discharge flow paths at the common discharge flow path side with respect to the respective one-way valves is higher than the other side, and opens only the openable mechanism corresponding to the selected droplet ejection unit.

Droplet ejecting apparatus

A droplet ejection apparatus includes a common flow path; droplet ejection units each respectively including a first distribution port; first flow paths that respectively connect each first distribution port to the common flow path; first open/close mechanisms provided respectively at the first flow paths; a first pressurizing unit that applies a positive pressure to the common flow path; a second open/close mechanisms provided at the common flow path at the first pressurizing unit side of connection portions that connect the common flow path and the respective first flow paths; and a controller. When the second open/close mechanism is closed, the controller opens only one or more first open/close mechanisms corresponding to one or more target droplet ejection units, applies positive pressure to a section of the common flow path at the first pressurizing unit side of the second open/close mechanism, and then opens the second open/close mechanism.

Droplet ejection apparatus

A liquid droplet ejecting apparatus including: plural liquid droplet ejecting portions; supply-side individual flow paths; discharge-side individual flow paths; a supply-side common flow path; a discharge-side common flow path; first opening/closing mechanisms; second opening/closing mechanisms; a first pressure applying portion; a second pressure applying portion; a first circulating path; a third opening/closing mechanism; a second circulating path including an upstream end portion being connected to the supply-side common flow path further downstream than a connecting portion of a supply-side individual flow path connected to the supply-side common flow path at a furthest upstream side in a liquid circulating direction and a downstream end portion being connected to the discharge-side common flow path, and circulating the liquid between the supply-side common flow path and the discharge-side common flow path; and a fourth opening/closing mechanism, is provided.

Liquid droplet ejecting apparatus

An inkjet recording apparatus includes: a recording head including an introduction section, a discharge section and nozzles; a first liquid chamber connected to the introduction section; a second liquid chamber connected to the discharge section; a first buffer tank which is connected to the first liquid chamber and an interior of which is open to air; a second buffer tank which is connected to the second liquid chamber and an interior of which is open to air; and a pressure control device which sets target pressures of the first liquid chamber and the second liquid chamber in such a manner that a prescribed back pressure is applied to the liquid inside the nozzles of the recording head while a prescribed pressure differential is provided between the first liquid chamber and the second liquid chamber, and controls driving of the first pump and the second pump in accordance with determination results of the pressure determination device in such a manner that the internal pressures of the first liquid chamber and the second liquid chamber remain constant at the target pressures, wherein the first buffer tank and the second buffer tank are connected via a flow channel, and at least one of a filter and a deaeration device is provided in the flow channel.

Inkjet recording apparatus

An inkjet recording apparatus has: a pressure control device which controls a liquid movement device in accordance with determination results of a first pressure determination device and a second pressure determination device in such a manner that interiors of a first liquid chamber and a second liquid chamber respectively assume prescribed pressures, wherein the pressure control device controls the liquid movement device so as to adjust the internal pressures of the first liquid chamber and the second liquid chamber in such a manner that a prescribed pressure differential between the internal pressures of the first liquid chamber and the second liquid chamber is produced and a prescribed back pressure is applied to the liquid inside a plurality of nozzles of a recording head.

Inkjet recording apparatus and recording method

The present invention provides a liquid droplet ejecting device including a liquid droplet ejecting head; a liquid storage unit that stores a liquid; a first flow path and a second flow path that connect the liquid droplet ejecting head and the liquid storage unit, the second flow path connecting with the first flow path in the liquid droplet ejecting head; a bypass flow path connected with the first flow path and the second flow path; a liquid feed unit provided between the liquid storage unit and a connecting portion of the bypass flow path and the first flow path, and circulating the liquid in the liquid droplet ejecting head and the liquid storage unit, and a pressure control unit provided at the bypass flow path, and controlling pressure of the liquid flowing through the bypass flow path from the first flow path side to the second flow path side.

Liquid droplet ejecting device

In an image recording apparatus, reference patterns are provided on a surface of a transport belt that transports a recording medium such as paper attracted thereto to image recording sections defined by recording heads. It is arranged such that the reference patterns are detected while being transported as the transport belt is driven, and a speed change of the transport belt and a position shift in a direction perpendicular to the transporting direction of the transport belt are calculated based on information resulting from the detection, thereby controlling ejection timing and ejection position of ink droplets ejected from the recording heads.

Image recording apparatus

Growing community of inventors

Kanagawa, Japan

Atsushi Murakami