Fuji Xerox Co., Ltd.

Fujifilm Business Innovation Corp.

Yosuke Ninomiya

Hirokazu Hamano

Yoshifumi Ozaki

Kazuaki Iikura

Akihiko Noda

Takafumi Wakai

Yasuyuki Tsutsumi

Masaru Sakuma

Shinji Mitsui

Munenobu Okubo

Takuji Matsumoto

Mikio Yamaguchi

Kazuhiro Saito

Akira Shimodaira

Ryuji Hattori

Satoru Hori

Hiroyuki Mamiya

Kenichi Shimada

Atsushi Kaneko

Yukihiro Ichiki

Jun Sawamura

Atsuna Saiki

Sho Watanabe

Hiroshi Nishikawa

Toyohiko Awano

Takayuki Ukawa

Keita Hashimoto

Toshihiro Goda

Kiyoshi Sakoh

Kyogo Soshi

Sota Hara

Hisashi Murase

Masahiro Andoh

Tomoya Oki

Yuki Terakado

Haruno Nagumo

An image carrier unit includes an image carrier configured to carry an image on a surface of the image carrier, a conduction member configured to establish electrical conduction of the image carrier by a contact point with the image carrier, and a shape portion configured to allow viewing of the contact point.

Image carrier unit and image forming apparatus

An image forming apparatus includes a fixing unit that transports a sheet of paper carrying an unfixed image through a nip part to fix the unfixed image to the sheet, a first guide unit coming into contact with a side of the sheet that guides transport of the sheet, and a second guide unit coming into contact with an opposite side of the sheet that guides transport of the sheet. The first guide unit has a recess serving as a guide part, the recess being recessed in a direction away from a transport path of the sheet. The second guide unit has a bending part serving as a guide part, the bending part having a shape of a circular arc in cross-section, the bending part being disposed such that at least a portion of the bending part lies inside the recess.

Image forming apparatus for correcting curl of paper

A transport device includes a powder applying device and a guidance member. The powder applying device is provided in a guide path through which a sheet is guided toward an image holding body holding a toner image to be transferred onto the sheet, and applies powder to end portions of the sheet in a transport direction. The guidance member is provided on a side facing the powder applying device in the guide path, and guides the sheet being transported through the guide path to the powder applying device.

Transport device and image forming apparatus having a powder applying device

An image forming apparatus includes: a first image forming part that forms an image on one surface of a recording material; and a second image forming part provided at an upper side of the first image forming part in a gravitational direction, the second image forming part that transports the recording material received from the first image forming part such that the one surface faces downward in the gravitational direction and that forms an image on the one surface from a lower side in the gravitational direction.

Image forming apparatus and image forming unit

A sheet containing system includes a containing member, a feed device, an ascending device, and a powder applying device. The containing member has a wall portion and is to contain a sheet. The feed device feeds the sheet to an outside of the containing member. The ascending device moves up the sheet contained in the containing member toward the feed device. The powder applying device is provided in the wall portion disposed on a downstream side in the containing member in a transport direction of the sheet. The powder applying device applies powder to an end portion of the sheet on the downstream side in the transport direction of the sheet.

Sheet containing system and image forming apparatus

A cleaning unit includes a cleaning member, an accommodating portion, and a transport member. The cleaning member removes a developer from a surface of an image carrier. The accommodating portion accommodates the removed developer. The transport member transports the developer removed by the cleaning member to the accommodating portion. The transport member includes a shaft member and first and second transport bodies. The shaft member extends in a direction intersecting a transport direction of the developer. The first transport body is rotatably supported by the shaft member. The second transport body is rotatably supported by the first transport body at a position spaced from the shaft member. The second transport body extends toward the cleaning member. When the shaft member rotates, a trajectory of an end portion, at a cleaning member side, of the second transport body is an ellipse elongated along the transport direction on the cleaning member.

Cleaner including a transport member configured to transport developer

A cleaning unit includes a cleaning member that removes a developer from a surface of an image holding member; an accommodating portion that accommodates the removed developer; and a transport member that transports the developer removed by the cleaning member to the accommodating portion, wherein the transport member includes a transport unit that extends in a direction intersecting with a developer transport direction, has a surface formed to be inclined in a direction approaching the cleaning member towards an upstream side, and transports the developer while contacting with the developer.

Cleaning unit and image forming apparatus

An image forming apparatus includes an image forming unit, a developer replenishing device, a fixing device, a press-contact adjustment mechanism, first and second driving transmission mechanisms, and a driving switching mechanism. The image forming unit forms a developer image on a recording medium. The developer replenishing device and the fixing device are detachable. The developer replenishing device replenishes a developer. The fixing device includes first and second rotation members. The second rotation member faces the first rotation member. The fixing device fixes the developer image to the recording medium. The press-contact adjustment mechanism adjusts a press-contact state between the first and second rotation members. The first driving transmission mechanism transmits a driving force to the press-contact adjustment mechanism. The second driving transmission mechanism transmits a driving force to the developer replenishing device. The driving switching mechanism couples the driving source to the first or second driving transmission mechanism.

Image forming apparatus

A developer replenishment device includes a developer transport member, a joint member, and an elastic member. The developer transport member transports a developer to a developing device. The joint member is attached to an end portion of the developer transport member on a side of the developing device so as to be relatively displaceable with respect to the developer transport member to be joined to the developing device so as to be able to replenish the developing device with the developer. The elastic member is interposed between the developer transport member and the joint member, and includes a guide hole that guides the developer from the developer transport member to the joint member.

Developer replenishment device and image forming apparatus

A charging unit includes: a charging member that contacts with an image holding body holding an image and charges a surface of the image holding body; a support member that supports the charging member; and a pressing member that has plural springs that expand and contract in a direction from the support member to the image holding body, and pushes the support member toward the image holding body, and at least two of the plural springs of the pressing member are formed by a single metal wire.

Charging unit

A driving force transmission mechanism includes a body that includes a transmission member, which transmits a driving force and includes a rotatable first surface and two first projections, and an installation unit that includes a receiving member including a second surface, which faces the first surface and which is rotatable by receiving the force when the installation unit is installed, and two second projections, which receive the force from the first projections by contacting the first projections when the first surface rotates, and that is removably installed in the body in a direction, in which the second surface moves parallel to the first surface, to couple the transmission member and the receiving member. The body includes a contact member that contacts, to rotate the receiving member, one of the second projections when the installation unit is installed while a line segment connecting the second projections is intersecting an installation direction.

Driving force transmission mechanism and image forming apparatus

A powder storage container includes a storage container body, a movable member, and a restricting portion. The storage container body stores powder therein, and includes a supply portion that supplies the powder. The movable member is provided to the storage container body, and is movable between a closed position at which the supply portion is closed and a supply position at which the supply portion is able to supply the powder. The restricting portion is provided on an inner side with respect to an outer peripheral shape of the movable member to restrict movement of the movable member to the supply position.

Powder storage container, developer replenishment device, and image forming apparatus

There is provided a developing device including a toner holding member that is rotatably provided to face an image holding member and holds and transports a nonmagnetic single-component toner toward a development region to develop an electrostatic latent image on the image holding member, a supplying member that is rotatably provided in elastic contact with the toner holding member to supply the toner from a contact region therebetween to the toner holding member, a toner replenishing unit that faces a replenishment region at a portion apart from the contact region to replenish a new toner, and a regulating member that is provided on a downstream side of the contact region in a rotation direction thereof and on an upstream side of the development region to triboelectrically charge the toner held on the toner holding member and regulate the amount of toner provided for the development.

Developing device, and image forming apparatus using the same

A developing device includes a toner holding member that is rotatably installed opposite to an image holding member which holds a latent image and circularly moves, a supply member that has a rough surface capable of capturing toner, a toner supply portion that supplies new toner, and a restriction member that restricts an amount of toner used for development, wherein the toner supply portion connects an accommodation chamber to a developing chamber via a toner transport path, wherein a developing chamber side opening is located on a lower side of an accommodation chamber side opening of the toner transport path, and wherein a width size in a direction following a rotation direction of the supply member in the developing chamber side opening of the toner transport path is set to be smaller than an outer diameter of the supply member in a projection plane viewed from the supply member side.

A developing device includes a transporting unit that rotates while facing an image carrier that carries an electrostatic latent image, the transporting unit transporting developer toward the image carrier; a feeding unit that contacts the transporting unit to feed the developer to the transporting unit; a transport path that connects a containing chamber that contains the developer to a feeding chamber that houses the feeding unit; a supplying unit that retains the developer to be supplied in the transport path and supplies the developer to the feeding unit in a supply region that is separated from a contact region in which the feeding unit contacts the transporting unit; and an attaching unit that is disposed downstream of the contact region and upstream of the supply region in a rotation direction of the feeding unit and that attaches the developer to the feeding unit at a location below the contact region.

Growing community of inventors

Kanagawa, Japan

Yosuke Ninomiya