Fuji Xerox Co., Ltd.

Kei Hirata

Takashi Sakamoto

Naoya Iwata

Akihide Kawamura

Takeshi Okoshi

Hirokazu Murase

Ikutaroh Nagatsuka

Keisuke Kubo

Kazunori Koshimori

Toshikazu Tsumita

Taiyou Uehara

Tomio Onuki

Hideaki Miyata

Kiyoshi Chatani

Hirohisa Kohno

Kouji Fukumuro

Hiroaki Kitagawa

Masayuki Nishimura

Atsuyuki Kitamura

Yoshifumi Ozaki

Nobumasa Furuya

Katsumi Harumoto

Takeshi Sumikawa

Hiroo Soga

Tomoyoshi Chihara

Tomio Ohnuki

Toshio Uchida

Hideo Nagura

Yuusaku Hashimoto

A developing device includes a first developer containing chamber, a second developer containing chamber, a first inflow section, a second inflow section, a first conveyance member and a second conveyance member. The first inflow section allows the developer to flow from the second developer containing chamber into the first developer containing chamber. The second inflow section allows the developer to flow from the first developer containing chamber into the second developer containing chamber. The first conveyance member conveys the developer contained in the first developer containing chamber in a first developer conveyance direction. The second conveyance member conveys the developer contained in the second developer containing chamber in a second developer conveyance direction. In a range corresponding to the first inflow section, an area of a cross section, perpendicular to the second developer conveyance direction, of the second developer containing chamber decreases along the second developer conveyance direction.

Developing device, image carrier unit and image forming apparatus

An accommodating vessel, which is detachably attached to a vessel receiving part of a casing of an image forming device to accommodate an image forming material, the accommodating vessel including: a vessel main body that includes a tubular part; a cover member that includes a fitted part; at least one positioned protrusion; and at least one positioned positioning protrusion, wherein the at least one positioned protrusion includes: a guide protrusion that extends in a rotating direction of the cover member; and a plurality of rotation stop protrusions that extends in opposite directions to each other relative to the guide protrusion along a pushing and pulling direction of the cover member, and Wherein the positioning protrusion includes a stop wall that abuts on the guide protrusion and the plurality of rotation stop protrusions of the at least one positioned protrusion to be stopped.

Accommodating vessel and image forming device using the same

An accommodating container includes: a container main body that has an opening at a part thereof; a cap member; and a seal member, wherein the seal member includes a plurality of seal abutment pieces that abut on a wall surface of the cap member or a wall surface of the container main body, and are elastically deformable, and at least one of the seal abutment pieces is arranged in non-contact with the wall surface of the cap member or the wall surface of the container main body in a first state before the cap member is attached to the container main body, and is arranged in contact with the wall surface of the cap member or the wall surface of the container main body in a second state where the cap member has been attached in an attachment position of the container main body.

Accommodating container and image forming apparatus using the same

A container includes: a container body that is to be inserted into the device, and that has a port; and a pair of support members arranged so that the support members face each other across the port, that supports a cover for covering the port, the cover including: a covering portion that covers the port; a pair of supported members that are supported by the support members; and a pair of connecting portions arranged so that the connecting portions face each other, that connects the covering portion and the supported members, and at least one of the connecting members being configured so that the connecting member becomes narrow as an outside surface of the connecting member tapers towards its inside surface at an end of the container body inserted into the device.

Container and device

The image forming apparatus is provided with: an image carrier; an exposure member that exposes the image carrier and forms an electrostatic latent image on the image carrier; a developing member that develops the electrostatic latent image formed on the image carrier; and a contact-retracting unit that rotates the developing member taking a predetermined position as the rotational center, and brings the developing member in contact with or proximity to the image carrier or retracts the developing member from the image carrier.

Image forming apparatus, developing apparatus and contact-retracting method

A storage container includes a container body that stores a supplementary material and is detachably attached to an image forming apparatus; a discharge port that is provided at a bottom of the container body; two protrusions that protrude from the container body toward both sides; and an opening-closing member that is movably supported by a guide frame surrounding the discharge port, wherein a rearward movement of the opening-closing member is restricted by stoppers while the container body is mounted on the mounting unit, the protrusions come in contact with the stoppers and push the stoppers laterally to release the restriction of the opening-closing member while the container body is pulled out of the image forming apparatus, and a width, in an attaching/detaching direction of the container body, of one protrusion of the protrusions is smaller than that of the other protrusion.

Storage container, supply device, and image forming apparatus

There is provided a development apparatus including: a first developer storage container and a second developer storage container that store developer, having a first a and second openings, respectively; a first transport member provided within the first developer storage container, and that causes the developer to move to the second developer storage container via the first opening; a second transport member provided within the second developer storage container, and that causes the developer to move to the first developer storage container via the second opening; a developer holding member that performs development by causing the developer to move to a position facing an image holding body on which a latent image is formed; and a moving member provided so as to fit between an inner wall face of the second developer storage container and an outer edge of the second transport member.

Development apparatus and image forming apparatus

A developing device includes (a) a developing member; (b) a developer container; (c) a partition member that partitions an interior of the developer container into a primary chamber and a secondary chamber; and (d) a developer-conveying unit that is disposed in the primary chamber, the developing device defining a collected-toner-receiving port through which a collected toner that is collected from a toner image carrier is received into the developer container; and a migration opening through which a developer held in the primary chamber is migratable to the secondary chamber, the developing device further including (e) a capturing unit that is disposed at the migration opening and captures a foreign material which migrates through the migration opening together with the developer; and (f) a foreign-material-removing unit that is disposed at the developer-conveying unit and moves the foreign material out of the developer container in accordance with the rotation of the developer-conveying.

Developing device and image-forming apparatus

A developing device includes: a developer carrier; a first housing chamber; a second housing chamber; a first inflow portion; a first conveying member; a second conveying member; and a concentration detecting member.

Developing device and image forming apparatus which can detect a concentration of a developer

An image forming member includes: an electrostatic latent image holding member that holds an electrostatic latent image; a developing unit that develops a toner image formed by a toner on a surface of the electrostatic latent image holding member; a toner removing member that removes a residual toner remaining on a surface of the electrostatic latent image holding member; a conveying path including a conveying member that is internally provided in the conveying path and that returns the residual toner removed from the surface of the electrostatic latent image holding member to the developing unit; and a trapping portion that traps a foreign matter conveyed by the conveying member, the electrostatic latent image holding member, the developing unit, the toner removing member, the conveying path, and the trapping portion of the image forming member being integrally and detachably attached to an image forming apparatus body.

Image forming member, toner removing apparatus, developing apparatus, and image forming apparatus

A developing method for an image formation system includes the steps of supplying a toner and developing an electrostatic latent image formed on a latent image support of the image formation system with the toner for visualization. A toner amount of a solid area T(g/m.sup.2) has a maximum toner amount per unit area on a recording medium and satisfies the following expression:

Method and device for developing an electrostatic latent image based on

A rotating type developing apparatus, having a plurality of developing devices which convey developer, which at least includes toner and carrier, to a developing roll while accommodating and circulating the developer; and a rotating body which holds and rotates the plurality of developing devices, in a rotating type developing apparatus in which the plurality of developing devices successively oppose a photosensitive drum due to the rotation of the rotating body so as to form a multicolor image, the apparatus having developer supplying equipment which supplies the developer to the developing devices; and collecting equipment which collects excess developer within the developing devices due to the rotation of the rotating body.

Rotating type developing apparatus

A developing device, which has a developer carrying member forming a magnetic brush of a two-component developer and is capable of carrying out a development while it is not in contact with an electrostatic latent image retaining member, is improved so as to reproduce an image at a sufficient image density.

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Kanagawa, Japan

Kei Hirata