Fuji Xerox Co., Ltd.

Hiromitsu Koizumi

Chiharu Nakajima

Takuji Matsumoto

Shigeki Nishimura

Toyohiko Awano

Mutsumi Kikuchi

Yasufumi Kayahara

Yusuke Kitagawa

Takeshi Okoshi

Naomasa Okimura

Shigeo Ohno

Kazuya Yamanoi

Tadashi Kiyama

Ryuichi Yamamoto

Masahiro Satoh

Masayuki Nishimura

Yasuhide Saito

Yasuyuki Tsutsumi

Toshio Masubuchi

Yukinori Sezaki

Norio Irie

Toshihiko Mitsuhashi

Michiaki Takahashi

Makoto Kanai

Satoru Hirosaki

Kouichi Okabe

Noritaka Ide

Noritake Ide

Shoji Hirota

The present invention provides an exchangeable toner cartridge which can be attached to or detached from an apparatus main body. The toner cartridge includes the toner transfer member which is provided along a longitudinal direction of the toner cartridge and which can rotate. At the first range of the upstream side in a toner transfer direction the toner transfer member is formed into a substantially spiral shape, and at the second range of the downstream side in the toner transfer direction on a side of a toner supply port, toner transfer member has a shape different from that of the first range.

Toner cartridge

The present invention provides a toner cartridge of replaceable type that is removably loaded into an apparatus main body, the toner cartridge including: a first section that is substantially cylindrical shape and at which a toner conveying member is disposed; and a second section that is provided at a substantially central portion in a longitudinal direction of the toner cartridge, the substantially central portion being a portion other than an upstream side in a toner conveyance direction of the first section and a downstream side in the toner conveyance direction of the first section at which a toner supply opening.

Toner cartridge and image forming apparatus

A toner cartridge can be attached to and detached from an apparatus main body. The toner cartridge includes an outer housing having a substantially rectangular upper cross section and a substantially semi-circular lower cross section, and an inner housing that is disposed inside of a lower portion of the outer housing and that has a cylindrical shape with an opening formed at its side surface, the inner housing being rotatably supported in the lower portion of the outer housing, and at the opening a bridging portion being formed along a longitudinal direction of the inner housing.

An image forming apparatus for forming an image with a developing agent, includes: a collecting-developing-agent occurring part in which the collecting developing agent to be collected in the developing agent occurs; a collection container for accommodating the collecting developing agent; a transporting part provided so as to connect the collection container and the collecting-developing-agent occurring part and for collecting and transporting the collecting developing agent occurring in the collecting-developing-agent occurring part; and a replacement part removably mounted in an apparatus body, wherein the collection container is mounted to be integrated with the replacement part.

Image forming apparatus

An image formation apparatus including a photoreceptor, a charger having a charger member for charging the photoreceptor, a latent image write unit for writing an electrostatic latent image onto the photoreceptor charged by the charger, and a developing device having a developer support with a magnetic field production member, for rendering visible the electrostatic latent image written by the latent image write unit with a developer. Further, the charging member of the charger is disposed under effect of a magnetic field produced by the magnetic field production member of the developing device, and the charging member is made of a nonmagnetic material.

Image formation apparatus and charger used therewith

A print head device, which includes a plurality of image carrying bodies, a plurality of developing units, a plurality of charging units, and at least one intermediate transfer unit, is constructed as a unit assembly, and the unit assembly is inserted into and removed from image forming apparatus main body. The image forming apparatus contains a mechanism that the image carrying bodies are minutely movably supported by a frame of the unit assembly with a gap being located therebetween, and are positioned and fixed to a housing of the image forming apparatus main body.

Image forming apparatus with detachable image forming unit assembly

Charger and image formation apparatus using the charger

An image forming apparatus providing frame support for an optical scanning unit and related image forming elements is formed of resin containing less than 10% glass fibers and includes reinforcement formations having a continuous hollow interior to increase rigidity while reducing weight. The apparatus is substantially box-like with ribbed surface for mounting a laser beam scanning unit and upright walls for mounting a drive unit are formed with ribs extending from thick wall portions.

Image forming apparatus providing frame support for an optical scanning

An image forming apparatus using an electrophotographic system. The image forming apparatus includes a body frame; an image forming unit having at least a photoreceptor and being detachably contained in the body frame; a forward unit for forwarding a sheet to the image forming unit, the forward unit having at least two forward members, one of the forward members being disposed at a disturbing position when the image forming unit is detached from the body frame; a moving frame being disposed so as to be opened and closed relative to the body frame and having a first opening position and a second opening position, the second opening position having an opening distance greater than the first opening position; and a coupling unit for coupling the moving frame with the forward unit so that when the moving frame is opened to the first opening position, the other of the forward members is distanced from the one of the forward members with the one of the forward members being at a position closing the moving frame, while when the moving frame is opened to the second opening position, the one of the forward members is moved to an undisturbing position when the image forming unit is detached from the body frame.

Image forming apparatus with moveable cover

A transfer apparatus including a photoreceptor drum having a transfer position, feeding rollers for feeding out a sheet of paper upward obliquely, and a guide member provided between the feeding rollers and the photoreceptor drum and having a guide surface on a lower surface thereof to guide the paper to the transfer position along the guide surface. In the transfer apparatus, the structure is simplified since the paper is guided by the single guide member. Moreover, the feeding of the paper can be performed smoothly, since frictional resistance is produced only on one side of the paper. In addition, the guide surface is formed on the lower surface of the guide member, so that the paper can be supplied to the transfer position of the photoreceptor drum stably.

Transfer apparatus providing improved transfer material guidance along a

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Saitama, Japan

Hiromitsu Koizumi