Canon Kabushiki Kaisha

Fuji Xerox Co., Ltd.

Sankyo Company, Limited

Hiroshi Miyamoto

Asuna Fukamachi

Yasuharu Toratani

Daigo Matsuura

Akiyoshi Shinagawa

Hiroki Kawai

Masanobu Tanaka

Ayano Ogata

Misa Kawashima

Keisuke Yoshida

Yuya Yamada

Shutaro Saito

Yusuke Yamaguchi

Taku Ashida

Shohei Tsuzaki

Yasunori Takei

Kazuya Hongo

Nobuyuki Ichizawa

Hisaki Kajino

Yutaka Ikeuchi

Hiroshi Tomori

Katsumi Nukada

Kenji Yao

Yoshinori Machida

Shuichi Tamura

Yasufumi Suwabe

Kiyoshi Shigehiro

Kiyokazu Mashimo

Naoyuki Yamamoto

Yoshiro Yamaguchi

Takeshi Matsunaga

Motohiko Sakamaki

Seiichi Takagi

Masaaki Suwabe

Ichiro Takegawa

Tetsuo Ohta

Sadao Okano

Shigeto Hashiba

Kazuki Inami

Shinsuke Takahashi

Ryo Yashiro

Hidekazu Aonuma

Hiroshi Fukuhara

Shoichi Morita

Kazuaki Aoki

Seiichi Katoh

Koichi Yasaku

Rei Okazaki

Katsuhiko Fujimoto

Wataru Nakabayashi

Kyoko Nishikawa

Keijiro Kobayashi

Masakazu Wakayama

Ryoichi Sonobe

Motoko Miura

Kazuhiko Shimura

Naohiko Tsuyuki

A fixing device includes an endless belt, a rotatable pressing member, a pad member inside of the belt, and a sliding member held by the pad member and sliding on an inner circumferential surface of the belt in a nip. The rotatable pressing member nips and feeds a recording material in the nip in cooperation with the belt and fixes a toner image on the recording material by applying heat and pressure. The sliding member includes a base material layer on which a plurality of projections projecting toward the rotatable pressing member are formed on a side sliding with the belt and a sliding layer provided on an outer surface of the plurality of projections. A shape of a surface of the sliding layer is a curved surface and a radius of curvature R of the curved surface satisfies 300 μm≤R≤850 μm.

Fixing device

An image forming apparatus includes a reception unit to receive a job, heating and pressing rotary members to form a nip portion, and a spraying member having a nozzle and a cylinder. The nozzle discharges air to the heating rotary member and a recording material. During a period after the reception unit receives the job and before a leading edge of a first sheet of the recording material reaches the nip portion, the spraying member performs a spraying operation of spraying air in an amount greater than or equal to a predetermined amount. The air that the spraying member sprays on the first sheet of the recording material during the job is higher in temperature than the air that the spraying member sprays during the period after the reception unit receives the job and before the leading edge of the first sheet of the recording material reaches the nip portion.

Image forming apparatus to suppress gloss unevenness

An image forming apparatus includes a first rotatable member, a second rotatable member, an air nozzle, and a pipe. The pipe includes a portion extending along a widthwise direction of the first rotatable member perpendicular to a recording material feeding direction.

Image forming apparatus with blown-air separation of recording material from fixing member

A fixing device includes a fixing belt configured to heat a recording material, a pressure member configured to press the fixing belt, and a sliding member configured to be in sliding contact with an inner peripheral surface of the fixing belt and being opposed to the pressure member. The pressure member and the fixing belt form a fixing nip portion, and heat and pressure are applied to the recording material at the fixing nip portion to fix a toner image onto the recording material. The sliding member includes a plurality of protrusions on a surface of the sliding member that is in sliding contact with the inner peripheral surface of the fixing belt. The following expressions are satisfied: The fixing belt satisfies the prescribed formula.

An image forming apparatus includes a first rotatable member, a second rotatable member, an air nozzle, and a pipe. The pipe includes a portion provided in a range overlapping with the first rotatable member and making one reciprocation or more in a case that when a direction crossing a feeding direction of a recording material fed in a nip is a widthwise direction of the first rotatable member, the pipe is viewed in a direction perpendicular to the widthwise direction.

Image forming apparatus

A fixing device includes an endless belt, a rotatable pressing member contacting an outer circumferential surface of the belt, and a sliding member inside of the belt. The sliding member forms a nip portion by nipping and feeding the belt between itself and the rotatable pressing member and slides on an inner circumferential surface of the belt. The rotatable pressing member nips and feeds the recording material in the nip portion in cooperation with the belt and fixes a toner image on the recording material by applying heat and pressure. The sliding member includes a substrate extending in a widthwise direction of the belt, and the substrate is made of metal and includes a plurality of projections projecting toward the rotatable pressing member.

Fixing device with holding member made of resin

A fixing device includes an endless belt, a rotatable pressing member, a pad member inside of the belt, and a sliding member held by the pad member and sliding on an inner circumferential surface of the belt in a nip. The rotatable pressing member nips and feeds a recording material in the nip in cooperation with the belt and fixes a toner image on the recording material by applying heat and pressure. The sliding member includes a base material layer on which a plurality of projections projecting toward the rotatable pressing member are formed on a side sliding with the belt and a sliding layer provided on an outer surface of the plurality of projections. A leading end of the plurality of projections is a plane and an average roughness (Ra) of the plane satisfies 0.13 μm≤Ra≤1.67 μm.

An ink-jet printing apparatus includes an ink-cartridge mounting unit to which an ink cartridge having a first ink chamber containing ink is to be mounted, and a second ink chamber. The second ink chamber stores ink supplied from the first ink chamber. The ink-jet printing apparatus is configured such that, in a case where the ink cartridge is mounted to the ink-cartridge mounting unit, the second ink chamber can be viewed from outside of the ink-jet printing apparatus. An equation 0.5 L&#x2264;d&#x2264;1.2 L is satisfied, where d is a length of the second ink chamber, and L is a length of the ink cartridge in a direction in which the ink cartridge is inserted into the ink-jet printing apparatus.

Ink-jet printing apparatus

An inkjet recording apparatus includes a printing portion configured to discharge ink on a sheet, a drying portion configured to blow warm air to the sheet to dry ink, a first rotary member is in contact with the first surface of the sheet, a heating portion configured to heat the first rotary member, a second rotary member configured to form a nip portion that apply heat and pressure to the sheet, a first detection unit configured to detect a temperature of the first rotary member, a second detection unit configured to detect a temperature of the second rotary member, a cooling unit configured to cool the second rotary member, and a control unit configured to execute a cooling mode of activating the cooling unit in a state where a temperature difference between the first rotary member and the second rotary member is smaller than a threshold.

Inkjet recording apparatus

An ink-jet printing apparatus includes an ink-cartridge mounting unit to which an ink cartridge having a first ink chamber containing ink is to be mounted, and a second ink chamber. The second ink chamber stores ink supplied from the first ink chamber. The ink-jet printing apparatus is configured such that, in a case where the ink cartridge is mounted to the ink-cartridge mounting unit, the second ink chamber can be viewed from outside of the ink-jet printing apparatus. An equation 0.5&#x2264;L&#x2264;d&#x2264;1.2 L is satisfied, where d is a length of the second ink chamber, and L is a length of the ink cartridge in a direction in which the ink cartridge is inserted into the ink-jet printing apparatus.

A fixing device including an endless belt, a heat source, a rotatable member forming a nip together with a belt, a nip forming member, a contact member contacting an inner peripheral surface of the belt, a reflecting portion reflecting radiation heat from the heat source toward the nip forming member, a heat conducting portion, and a heat insulating member. The nip forming member includes a first member having a U-shape made of metal and open on a side opposite from the rotatable member and a second member provided inside the first member. The heat conducting portion conducts heat of the reflecting portion to the contact member. The heat insulating member is provided between the first member and the second member. A thickness t (&#x3bc;m) and thermal conductivity &#x3bb; (W/m&#xb7;K) of the heat insulating member satisfy:&#x2265;100 (&#x3bc;m)0.02 (W/m&#xb7;K)&#x2264;&#x3bb;&#x2264;0.05 (W/m&#xb7;K).

A compound having the following formula (III) wherein Ris hydrogen, alkyl, cycloalkyl, phenyl or a 5- or 6-membered heterocyclic, and X is oxygen, sulfur or nitrogen, and a method for preparing said compound.

Intermediate of 6-substituted-1-methyl-1-H-benzimidazole derivative and method for producing same

A method for preparing a compound having the following formula (I) by reducing a nitro group of the following formula (III) followed by carrying out an intramolecular dehydration condensation, wherein Ris hydrogen, alkyl, cycloalkyl, phenyl or a 5- or 6-membered heterocyclic, and X is oxygen, sulfur or nitrogen.

Intermediate of 6-substituted 1-methyl-1-H-benzimidazole derivative and method for producing same

A polyamic acid composition, containing polyamic acid and polyaniline particles, with reduced fluctuation of properties after production; a preparation method for the same; a polyimide resin having reduced fluctuation of resistance properties, superior mechanical properties and superior surface smoothness; a semiconductive member, and an image-forming apparatus having the semiconductive member as a belt. A polyamic acid composition, including a polyamic acid, polyaniline particles having a fibrous region with an aspect ratio of between approximately 1 to approximately 100 or less, a dopant, and a solvent.

Polyamic acid composition, production method thereof, polyimide resin, semiconductive member and image-forming apparatus

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Kanagawa, Japan

Hiroshi Miyamoto