Ricoh Company, Ltd.

Canon Finetech Inc.

Canon Kabushiki Kaisha

Smk Corporation

Ricoh Printing Systems, Ltd.

Seiichi Ishizaka, Director General of Agency of Industrial Science and

Hiroshi Suzuki

Junji Shirakawa

Makoto Nakura

Hitoshi Kato

Yusuke Obuchi

Atsushi Takada

Naoto Saeki

Tetsuya Terada

Mamoru Takayama

Tsukasa Kobayashi

Shingo Takai

Yasushi Hashimoto

Atsuteru Oikawa

Yuuki Kikushima

Satoshi Aizawa

Masami Takeshita

Naoyasu Funada

Hirofumi Ohkushi

Takehiko Kodama

Akihiko Sugiyama

Akihito Nagayama

Yuichi Konno

Michihiro Matsuda

Jack for an electrical connector

A fixing unit includes: a heating roller; a pressing roller that is capable of being in pressure contact with the heating roller; a compressor that generates compressed air; an air tank that reserves therein the compressed air; a first pipe through which the compressed air generated by the compressor is fed into the air tank; an injection nozzle that is formed by the heating roller and the pressing roller and that causes the compressed air to blow a printing medium fed from the fixing nip; a second pipe through which the compressed air reserved in the air tank is fed into the injection nozzle; and a compressed air injection solenoid valve that is provided in middle of the second pipe. A droplet separator for separating a droplet from the compressed air is provided to the first pipe or to the second pipe.

Fixing unit and electrophotographic apparatus having the same

A disclosed cooling structure includes a casing including a bottom plate arranged in a bottom portion of the casing and having a through hole formed in the bottom plate; a heat source to be cooled accommodated in the casing; a suctioning unit configured to suction outer air from an outside of the casing to an inside of the casing via the through hole in the bottom plate; an open and close member including an outer air path for carrying the suctioned outer air and being capable of opening and closing relative to the casing; and an outer air applying unit configured to cool the heat source by the carried outer air received from the open and close member.

Cooling structure, image forming apparatus having cooling structure, and electronic apparatus having cooling structure

A belt member is supported by a plurality of rollers and moves in a predetermined moving direction. A detecting unit detects a displacement of the belt member in its width direction. A correcting unit moves a second end of a first roller from among the rollers in either one of a forward direction and a backward direction while fixing its first end based on a result of detecting the displacement of the belt member such that a tilt of a rotating shaft of the first roller is changed to correct a meandering of the belt member. An adjusting unit adjusts a fixing position of the first end.

Belt device and image forming apparatus

A pressing mechanism that presses a contact unit, which is brought into contact with a contact target unit against the contact target unit, includes a holding unit that holds the contact unit. The holding unit includes two first portions that are arranged at both ends of the holding unit in its width direction away from the contact unit and are biased toward the contact target unit and a second portion that is arranged at approximately a center in the width direction sandwiching the contact unit with the first portions and supports the holding unit.

Pressing mechanism, transfer device, and image forming apparatus

Belt device and image forming apparatus having a belt correcting unit and an adjusting unit

A contacting and separating mechanism which causes a first member to contact a second member and separates the first member contacting the second member from the second member is disclosed. The contacting and separating mechanism includes a pressure applying member which is rotated together with the first member by using a force of a first force applying member with a first supporting point as the center and causes the first member to contact the second member and separates the first member contacting the second member from the second member, and separates the first member contacting the second member from the second member by rotating with the first member with a second supporting point as the center by changing the position of the first supporting point.

Contacting and separating mechanism and image forming apparatus

The invention is to provide a sheet treating apparatus achieving a space saving and enabling easy identification of an output mode of sheets. The sheet treating apparatus of the invention for treating sheets after image formation is accommodated in a space formed in an image forming apparatus, and includes plural sheet stacking devices which stack treated sheets, and a lifting and lowering device which independently lifts and lowers the plural sheet stacking devices.

Sheet treating apparatus and image forming apparatus provided therewith

A sheet processing apparatus including a first sheet stacking portion for stacking sheets thereon, a second sheet stacking portion provided downstream of the first sheet stacking portion with respect to a sheet conveying direction, a sheet holding device for holding the sheets stacked on the first sheet stacking portion, and a holding device moving device for moving the sheet holding device between a holding position for holding the sheets and a discharging position provided downstream of the holding position in the sheet conveying direction, wherein the discharging position has a predetermined distance upstream from a stop position in which the sheet holding device moved to a downstream side with respect to the sheet conveying direction by the holding device moving device is stopped to an upstream side.

Sheet processing apparatus and image forming apparatus having the same

A pressing member is provided on a shutter member provided in a main body of an apparatus and adapted to open and close a folded sheet discharging port upon upward and downward shifting movement of sheet stacking means in such a manner that, after folding processing is performed by folding means as the shutter member is lowered, a sheet discharged onto folded sheet stacking means is pressed down by the pressing member. Further, if there is any sheet on the folded sheet stacking means, by stopping the sheet stacking means at a predetermined position where the shutter member lightly abuts against the sheet discharged on the folded sheet stacking means, the sheet is prevented from being pinched between the shutter member and the sheet stacking means.

Sheet processing apparatus and image forming apparatus having such sheet processing apparatus

Disclosed is a sheet discharging apparatus including a charge eliminating member which is provided downstream a pair of swinging rollers for discharging a sheet, and is directed along a sheet discharging direction from its upstream side toward its downstream side. In the sheet discharging apparatus, the charge eliminating member is directed along the sheet discharging direction from its upstream side toward its downstream side, so that an area of the charge eliminating member facing a sheet is made larger than that of a conventional one, and static electricity of the sheet can be surely removed. Particularly, even when the sheet is a color sheet on which a color image charged with more static electricity than a monochromatic sheet is formed, the static electricity of the color sheet can be surely removed.

Sheet discharging apparatus, and sheet treating apparatus and image forming apparatus using the sheet discharging apparatus

A sheet skew correcting apparatus, incorporated in a printer or the like to correct a phenomenon of obliquely feeding a sheet called skewing. The apparatus includes a transporting path in which the sheet is transported, a pair of registration rollers, a pair of timing rollers disposed upstream from the registration rollers, and a paper guide having a first and a second curved portion and constituting the transporting path. When a sheet fed into the transporting path abuts against a contact point of a registration roller pair, the sheet is further transported by an arbitrary distance in the sheet transporting direction. First and second curves are then formed in the sheet in the first and second curved portions. Then the registration roller pair is rotated in the direction opposite to the sheet transporting direction, the front end of the sheet uniformly abuts against the contact point of the registration roller pair to correct skew.

Sheet skew correcting apparatus and image forming apparatus

Jack

Growing community of inventors

Ibaraki, Japan

Hiroshi Suzuki