Canon Kabushiki Kaisha

Toshimori Miyakoshi

Yoshiyuki Imanaka

Ichiro Saito

Teruo Ozaki

Muga Mochizuki

Ryosuke Hirokawa

Masahiko Ogawa

Takao Ogata

Toru Ohnishi

Akira Morita

Ryohei Goto

Hiroaki Motooka

Toshiaki Hirosawa

Akihiro Mouri

Atsushi Sakamoto

Minoru Nozawa

Toru Yamane

Shogo Kawamura

Noboru Toyama

Eisuke Nishitani

Susumu Hirosawa

Riichi Saito

Takumi Otani

Kyosuke Deguchi

Kunio Takada

Shuichi Murakami

Hirokazu Komuro

Yutaka Kano

Satoshi Masuda

Yuji Kanome

Nobumasa Suzuki

Masashi Kitani

Hikaru Watanabe

Kentarou Muro

Yoshiyuki Honda

Takashi Horiba

Akio Koganei

Kazuoki Hongu

Yukari Aoki

Toshio Adachi

On a conveyance path of a liquid absorbing member including a porous body, a liquid absorbing unitthat absorbs a first liquid from a first image, a recovery liquid applying unitthat applies a recovery liquid to the porous body absorbing the liquid and a liquid collecting unitthat collects a liquid component absorbed by the porous body are arranged in this order, and a cleaning unitthat brings a cleaning member into contact with the conveyance path of the porous body is disposed at least between the liquid absorbing unit and the recovery liquid applying unit or between the liquid collecting unit and the liquid absorbing unit.

Ink jet printing apparatus and ink jet printing method

An ink jet recording method is disclosed where, when a liquid including water is absorbed and removed from an image including an aqueous liquid component and a coloring material, by use of a water repellent porous body, a contact surface of the porous body with the image is treated with a wetting liquid whose contact angle to the contact surface is less than 90&#xb0;, and thereafter absorption and removal of the aqueous liquid component from the image by the porous body are performed.

Ink jet recording apparatus and ink jet recording method

A recording apparatus includes a transfer body, an application unit configured to apply, onto the transfer body, an ink containing a color material, and a transparent transferability improving liquid for improving transferability of the ink onto a recording medium, a transfer unit configured to transfer an ink image formed on the transfer body onto the recording medium by bringing the transfer body into contact with the recording medium, a detection unit configured to detect a region in which the ink remains on the transfer body after the transfer unit transfers the ink image, and a determination unit configured to determine, based on a detection result of the detection unit, an amount of the transferability improving liquid to be applied to the transfer body by the application unit.

Recording apparatus and recording method

When a porous body is repeatedly used to perform treatment of absorbing and removing an aqueous liquid component on an image which is formed using a reaction liquid and an ink and contains the aqueous liquid component and a coloring material, recovery treatment for applying a recovery liquid to the porous body is performed, the recovery liquid having a viscosity lower than a viscosity of the reaction liquid and the ink.

An ink jet recording method includes a step of forming a first image containing a first liquid and a coloring material on an ink receiving medium and a liquid absorbing step of bringing a liquid absorbing member including a porous body into contact with the first image to absorb at least some of the first liquid from the first image to form a second image.

Ink jet recording method and ink jet recording apparatus

Provided is a highly reliable ink jet recording apparatus capable of preventing the occurrence of image defects. The ink jet recording apparatus includes a liquid absorbing device including a porous body configured to absorb/remove an aqueous liquid component from an image containing the aqueous liquid component and a coloring material, a heat drying device configured to perform a heat drying treatment of the image after being subjected to the liquid absorption treatment, a temperature measuring device configured to measure the temperature of the image after being subjected to the heat drying treatment with the heat drying device, and a determination unit configured to determine the state of the liquid absorbing device from the measured temperature.

Ink jet recording apparatus

First humidified gas is supplied from a first supply port to a sheet to be conveyed, thereby increasing the moisture content of the sheet. Simultaneously, second humidified gas is supplied to a space where nozzles of the inkjet recording head are exposed, from a second supply port provided at a position closer to the inkjet recording head than the first supply port, thereby increasing the atmosphere humidity of the space. The part of the sheet of which the moisture content has been increased is made to enter the space where the atmosphere humidity has been increased, and recording is performed by the inkjet recording head.

A write-once optical disk comprises a substrate, a recording layer which is stacked on the substrate and comprised of a first reaction layer comprised of a material containing hydrogen and a second reaction layer comprised of a material having an extinction coefficient greater than that in the first reaction layer, and a protective layer which is stacked on the recording layer.

Write-once optical disk and optical recording method

A high-density magneto-optical recording medium having excellent jitter properties is provided. A pattern-dependent shift of the length of a recorded mark does not occur even when a minute mark has increased sensitivity to a recording magnetic field. A magneto-optical recording medium has at least a displacement layer, a memory layer, and an auxiliary memory layer. A mark with a length up to the diffraction-limit of the optical system is recorded and read out. The magneto-optical recording medium includes an in-plane magnetization-inducing layer principally made of cobalt on the auxiliary memory layer.

Magneto-optical recording medium having in-plane magnetizing layer

A domain-wall-displacement-type magnetooptical recording medium is provided in which a floating magnetic field from a surrounding portion that operates on a recording/reproducing portion is suppressed. The recording medium includes a displacement layer having a composition such that rare-earth-element sub-lattice magnetization is dominant at room temperature, a switching layer, a memory layer, and a magnetization compensation layer in which iron-family-element sub-lattice magnetization is dominant at room temperature, for suppressing generation of a stray magnetic field at a temperature near room temperature.

Domain-wall-displacement-type magnetooptical recording medium

An increase in variation in resistance value resulting from a reduction in thickness of heaters is dealt with without increasing the manufacture costs of the print head, by allowing smaller ink droplets to be efficiently ejected. A setting for a pulse voltage essentially varied depending on the ejection threshold energy of the head is employed so that optimum drive power conditions can be reasonably set over a range of varying resistance values resulting from differences among manufactured print heads. This provides a print head and a printing apparatus which can deal with an increase in differences among manufactured heads by allowing smaller ink droplets to be efficiently ejected without reducing the yield of manufactured print heads.

Method of driving and controlling ink jet print head, ink jet print head, and ink jet printer

An optimum drive energy for a print head is supplied over an extended period of time to provide consistently good image quality without troublesome operation by the user. Temperature of the print head is monitored while varying the drive energy. A threshold value of drive energy required for ink ejection is judged using the drive energy and temperature data. An optimum drive condition is determined on the basis of the threshold value and, when the determined drive condition is different from drive condition information stored in the ink jet print head, the drive energy supplied to the ink jet print head is changed.

Method for controlling the drive energy of an ink jet print apparatus and the ink jet print apparatus

A substrate for use of an ink jet recording head is provided with a plurality of heat generating members for generating thermal energy to be utilized for discharging ink. The heat generating members are structured by thin film formed by material represented by Ta Si R , which has specific resistance value of 4000 &mgr;&OHgr;&middot;cm or less, where R is one or more kinds of elements selected from among C, O, N, and x&plus;y&plus;z&equals;100. With the structure thus arranged, the heat generating members make it possible to maintain the change of resistance values within a small amount even when used continuously for a long time, and provide recorded images in high quality with long life and reliability.

Ink jet head substrate, an ink jet head, an ink jet apparatus, and a method for manufacturing an ink jet recording head

Disadvantages relating to ink refill specific to an increase in a number of ink ejection openings in an ink jet print head is eliminated to provide a particularly excellent fast-response capability and ejection performance. More specifically, when an ink is supplied to a liquid chamber via an ink supply path and an ink supply opening formed in a support member and a print element substrate in a print head, and is then ejected from ejection openings, a pressure of an ink effected upon the ejection is transmitted to the ink supply path. This pressure, however, can be absorbed by air chambers via communication paths to reduce adverse effects of the pressure on ink refill in the liquid path after the ejection. In this case, since the air chambers and other components are structured to be closed with respect to the atmosphere, problems such as an increase in viscosity which are associated with communication of the air chambers and other components with the atmosphere can be prevented.

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Yokohama, Japan

Toshimori Miyakoshi