Ricoh Company, Ltd.

Nok Corporation

Minebea Mitsumi Inc.

Kei Sasaki

Junya Suzuki

Yasuo Niikura

Ryo Takahashi

Hidetoshi Kojima

Kazunori Konno

Takashi Fukumoto

Kiichiro Goto

Takashi Saito

Nobuyoshi Suzuki

Masahiro Tamura

Makoto Hidaka

Keisuke Sugiyama

Yuusuke Shibasaki

Tomomichi Hoshino

Kiyoshi Hata

Shingo Matsushita

Akihiro Musha

Takahiro Watanabe

Tomohiro Furuhashi

Kazuya Yamamoto

Shuuya Nagasako

Akira Yamaguchi

Akira Kunieda

Kyosuke Nakada

Wataru Takahashi

Takashi Yamamoto

Takehiro Nakagawa

Takuya Kato

Michitaka Suzuki

Hidehiko Fujiwara

Kazuki Seto

Takamasa Matsumoto

Yuuta Mori

Yasushi Tsuruoka

Youhei Niitsuma

Kohjiroh Haga

Satoru Takano

Shintaro Matsumoto

Go Kanzaki

Kazuki Mishina

Hiroki Matsui

Masayuki Tanida

Satoshi Yamanaka

Hisayoshi Sugawara

Shinya Takeda

Kohta Abe

Jun Saito

Shohei Saito

Kenji Hari

Hideharu Hyakutake

Hideyuki Furuyama

Koji Furuta

Kazuhiko Kitano

Yuichi Tarukawa

Yuichi Shuto

Shohei Yamane

Kotomi Kameyama

Shinji Asami

Naoki Kobayashi

Naoki Oikawa

Naoto Kobayashi

Masanobu Kimata

Sachika Tamaki

Hidefumi Shibata

Eiji Akamatsu

Hitoshi Ibuka

Kensuke Fukuchi

Mizunari Mizutani

A sheet processing apparatus includes: a center-folder to perform a center-folding process on a sheet bundle including multiple sheet materials; a back-crimp binder to: form a back portion on the sheet bundle subjected to the center-folding process; and perform a crimp-binding process on the back portion; and a controller configured to: cause the center-folder to perform the center-folding process; and cause the back-crimp binder to perform the crimp-binding process on the back portion while forming the back portion on the sheet bundle in the crimp-binding process.

Sheet processing apparatus, sheet processing method, and image forming system

A medium processing apparatus includes a liquid applier, a post-processing device, and circuitry. The liquid applier includes a liquid application member that applies liquid to a part of a medium, the medium being at least one medium. The post-processing device binds a bundle of media including the medium to which the liquid is applied by the liquid applier. The circuitry changes, according to a binding condition for the post-processing device, at least one of an amount of movement of the liquid application member toward the medium or a contact time during which the liquid application member is in contact with the medium.

Medium processing apparatus and image forming system incorporating same

A medium processing apparatus includes a conveyor, a liquid applier, and a crimper. The conveyor conveys a medium. The liquid applier applies liquid to the medium conveyed by the conveyor. The crimper presses and deforms a medium bundle including at least one medium to which the liquid is applied by the liquid applier, to bind the medium bundle. The liquid applier selectively performs application of the liquid to all media constituting the medium bundle or application of the liquid to only some of the media constituting the medium bundle, based on a conveyance interval at which the media are conveyed by the conveyor.

A medium processing apparatus includes a conveyor, a liquid applier, and a crimper. The conveyor conveys a medium in a conveyance direction. The liquid applier applies liquid to a liquid application position on the medium conveyed by the conveyor. The crimper presses and deforms the liquid application position on a plurality of media including the medium to bind the plurality of media. The liquid applier includes a liquid application rotator configured to rotate, in contact with the medium conveyed by the conveyor, about a pivot extending in a main scanning direction orthogonal to the conveyance direction of the medium and to a thickness direction of the medium, to apply the liquid to the medium.

A medium processing apparatus includes a liquid applier, a post-processing device, and circuitry. The liquid applier applies liquid to a part of a medium, the medium being at least one medium. The post-processing device binds a bundle of media including the medium to which the liquid is applied by the liquid applier. The circuitry controls operations of the liquid applier and the post-processing device. The circuitry causes the liquid applier to apply different amounts of liquid to a plurality of sample areas in the medium.

A medium processing apparatus includes a liquid applier, a crimper, a stapler, and circuitry. The liquid applier applies liquid to a liquid application position of a medium. The crimper presses and deforms at least a part to which the liquid is applied by the liquid applier, to bind a plurality of media including the medium to which the liquid is applied. The stapler performs stapling with a staple on a medium bundle in which the plurality of media is bound by the crimper. The circuitry controls operations of the crimper, the liquid applier, and the stapler, and selectively switches between first binding performed by the liquid applier and the crimper and second binding performed by only the stapler, in accordance with information on the medium or a binding position at which the medium bundle is bound by the crimper.

Medium processing device, storage medium, and image forming system

A medium processing apparatus includes a conveyor, a liquid applier, a crimper, a movement assembly, and circuitry. The crimper presses and deforms at least a portion of a plurality of media including a medium to which liquid is applied by the applier, to bind the media. The circuitry causes the assembly to move the applier from a standby position to a position at which the applier faces a liquid application position on the medium before the medium is conveyed to a position at which the liquid is applied; causes the applier to apply the liquid when the medium is conveyed to the position at which the applier faces the liquid application position; causes the assembly to not move the applier to the standby position until application of the liquid to the media ends; and causes the assembly to move the applier to the standby position after the application ends.

A medium processing device includes a plurality of crimping teeth and circuitry. The plurality of crimping teeth presses and deforms a position on a sheet bundle to bind the sheet bundle. The sheet bundle is a bundle of stacked sheet-shaped media. The plurality of crimping teeth flattens the position pressed and deformed to unbind the sheet bundle. The circuitry causes the plurality of crimping teeth to sandwich the position on the sheet bundle.

Medium processing device and image forming apparatus

A medium processing apparatus includes a conveyor, a liquid applier, and a crimper. The conveyor conveys a medium. The liquid applier performs liquid application of applying liquid to a part of the medium conveyed by the conveyor, the medium being at least one medium. The crimper presses and deforms a bundle of media including the medium to which the liquid is applied by the liquid applier, to bind the bundle of media. The liquid applier adjusts an application amount of the liquid in the liquid application according to an environmental condition that is a factor that affects a binding strength with which the bundle of media is bound by pressing and deforming of the crimper.

A medium processing apparatus includes a crimper, a liquid applier, a driving source, and a binding load detector. The crimper presses and deforms a part of a medium bundle, which is a plurality of sheet-shaped media bundled, to bind the medium bundle. The liquid applier applies liquid to a position on the media at which binding is to be performed by the crimper. The driving source operates the crimper. The binding load detector detects a load of the crimper during the binding. The liquid applier adjusts an amount of the liquid to be applied to the media in accordance with a magnitude of the load during the binding detected by the binding load detector.

A medium processing apparatus includes a conveyor, a receptacle, a liquid applier, and a crimper. The conveyor conveys a medium. The receptacle holds the medium conveyed by the conveyor. The liquid applier is disposed upstream from the receptacle in a conveyance direction of the medium to apply liquid to a liquid application position on the medium conveyed by the conveyor. The crimper presses and deforms the liquid application position on a plurality of media including the medium held on the receptacle to bind the plurality of media.

A medium processing apparatus includes a conveyor, a liquid applier, and a crimper. The conveyor conveys a medium. The liquid applier applies liquid to a part of the medium conveyed by the conveyor. The medium is at least one medium. The crimper presses and deforms a bundle of media including the medium to which the liquid is applied by the liquid applier, to bind the bundle of media. The liquid applier includes a liquid application member and a retained liquid amount detector. The liquid application member applies the liquid to a position to be bound by the crimper on the medium. The retained liquid amount detector detects an amount of the liquid retained by the liquid application member.

An image forming apparatus is to supply paper sheets on which images are formed to a post-processing apparatus to pressure-bind binding areas of paper sheets bundled. The image forming apparatus includes a conveyor, an image forming device, and a controller. The conveyor conveys a paper sheet. The image forming device discharges liquid ink to the paper sheet conveyed by the conveyor. The controller repeatedly executes a process of: causing the conveyor to convey the paper sheet to a position facing the image forming device; causing the image forming device to discharge the liquid ink to form an image on the paper sheet; and causing the conveyor to convey the paper sheet on which the image has been formed toward the post-processing apparatus. The controller further causes the image forming device to apply the liquid ink to a binding area of at least one of the paper sheets.

Image forming system having image forming apparatus and post-processing apparatus

A post-processing apparatus includes a tray, a conveyor, a liquid applicator, a crimper, and a mover. The tray holds recording media on each of which an image is formed by an image forming apparatus. The conveyor conveys the recording media toward the tray in a conveyance direction of the recording media. The liquid applicator applies liquid to the recording media held in the tray at a binding position at which the recording media is bound. The crimper presses and deforms the recording media at the binding position to bind the recording media. The mover moves the liquid applicator and the crimper separately along a surface of the recording media held in the tray.

Post-processing apparatus and image forming system incorporating the post-processing apparatus

A sealing apparatus includes: an annular reinforcement ring around an axis; and an annular elastic body part around the axis, which is attached to the reinforcement ring and is formed of an elastic body. The elastic body part has: a side lip, an intermediate lip, and a grease lip. A grease as a lubricant is applied to respective inner peripheral side surfaces of the side lip, the intermediate lip, and the grease lip. A thickener of the grease includes no urea-based thickener. In a usage state of the sealing apparatus, a cross sectional area of an inter-lip space enclosed by the side lip, the intermediate lip, and a hub ring is equal to or greater than 3.5 mm.

Sealing apparatus and sealing structure

Growing community of inventors

Kanagawa, Japan

Kei Sasaki