Canon Kabushiki Kaisha

Kazuyuki Miyano

Kazuhiko Omata

Tatsuya Nakamura

Takashige Kasuya

Tatsuhiko Chiba

Akihito Kanamori

Yutaka Ban

Makoto Kanbayashi

Hitoshi Kanda

Satoshi Mitsumura

Koji Inaba

Momosuke Takaichi

Tatsuya Goto

Hiroumi Morinaga

Yoko Goka

Hideki Goto

Makoto Kanabayashi

A toner supply container for supplying toner into a main assembly of an electrophotographic image forming apparatus includes a toner accommodating portion for accommodating toner to be supplied into a main assembly of the electrophotographic image forming apparatus; a toner discharging opening for discharging the toner accommodated in the toner accommodating portion, the toner discharging opening being provided in the toner accommodating portion; a sealing member for openably sealing the toner discharging opening; an openable member for openably sealing the toner discharging opening; a rotatable member which is rotatable relative to the toner accommodating portion; a rotating force receiving portion for receiving rotating force produced by rotation of the rotatable member through a rotating force transmission member provided in the main assembly of the electrophotographic image forming apparatus to unseal the toner discharging opening by the rotation of the rotatable member when the toner supply container is mounted to the main assembly of the electrophotographic image forming apparatus.

Toner bottle, toner supply system and image forming apparatus using same

A developer cartridge includes a cylindrical body for accommodating a developer with a discharge opening, provided in a cylindrical portion of the cylindrical body, for permitting discharge of the developer. A sealing member seals the discharge opening. A stirring member is provided in the cylindrical body and includes a shaft for receiving a driving force to rotate the stirring member and elastic stirring blades provided on the shaft. The stirring blades have free end portions bent in a radial direction.

Developer cartridge featuring a stirring member with free stirring blade

The present invention provides a seal member removing tool for removing a seal member fitted in a developing agent loading opening of a developing agent container, comprising a bent body portion, and an abutment portion provided on one end of the body portion and adapted to abut against the seal member from inside of the container to remove the seal member from the container. The present invention further provides seal member removing method effected by using such a seal member removing tool.

Seal member removing tool and seal member removing method

A developer cartridge comprising a cylindrical portion for accommodating a developer, being provided with a hole at a longitudinal end, wherein the developer is capable of being supplied into the cylindrical portion through the hole, a removable cap for capping the hole, and a gripping member for covering the cap and having a plate-like grip. A developing remanufacturing method, wherein the cartridge includes a cylindrical portion having an opening extending in a longitudinal direction, the cylindrical portion being provided with a hole at a longitudinal end, a cap for capping the hole and a gripping member, includes the steps of removing the gripping member, removing the cap, sealing the opening, supplying a developer through the hole, capping the hole, and mounting the gripping member.

Developer cartridge featuring a developer replenishment hole and

A pneumatic pulverizer comprises an accelerating tube for carrying and accelerating powder to be pulverized with high-pressure gas and a pulverizing chamber for pulverizing the powder to be pulverized. The back end of the accelerating tube is provided with a pulverization powder feed port for feeding powder to be pulverized to the accelerating tube, the pulverizing chamber has an impact member having an impact surface opposed to the opening plane of the outlet of the accelerating tube, the and a side wall against which the powder to be pulverized that has been pulverized by the impact member collides to further pulverize. The closest distance from the side wall to a margin of the impact member, is shorter than the closest distance from the front wall of the pulverizing chamber opposed to the impact surface to the margin of the impact member, to prevent pulverized powder from fusing, coagulating, and getting coarser, and prevent localized abrasion of an impact surface the impact member and the accelerating tube.

Pneumatic impact pulverizer, fine powder production apparatus, and toner

An image forming method has developing an electrostatic latent image on an electrostatic latent image bearing member by the use of a toner containing a wax component, to form a toner image on the electrostatic latent image bearing member;

Method of forming a full-color toner image onto a laminated film

A color toner for developing an electrostatic image has color toner particles containing a binder resin and a colorant. The color toner particles have been obtained by mixing a mixture containing at least a polymerizable monomer, the colorant and a polymerization initiator to prepare a polymerizable monomer composition, dispersing the polymerizable monomer composition in an aqueous medium to carry out granulation, and polymerizing polymerizable monomers in the aqueous medium. The colorant comprises fine organic pigment particles or fine organic dye particles having an acetic acid adsorption heat in n-heptane of from 0.1 mJ/m.sup.2 to 80 mJ/m.sup.2.

Color toner for developing electrostatic images, process for its

A developer cartridge detachably mountable to a developing apparatus having a shutter for closing and opening a developer receiving opening, includes a cylindrical portion for accommodating a developer, the cylindrical portion being provided with an opening extending along a length thereof; a sealing member for sealing the opening; a first projection for moving the shutter to an open position for the developer receiving opening in interrelation with rotation of the developer cartridge in a first direction; and a second projection for moving the shutter to a close position for the developer receiving opening in interrelation with rotation of the developer cartridge in a second direction which is opposite from the first direction.

Developer cartridge and developing apparatus

A pneumatic pulverizer comprises an accelerating tube for carrying and accelerating powder to be pulverized with high-pressure gas and a pulverizing chamber for pulverizing the powder to be pulverized. The back end of the accelerating tube is provided with a pulverization powder feed port for feeding powder to be pulverized to the accelerating tube, the pulverizing chamber has an impact member having an impact surface opposed to the opening plane of the outlet of the accelerating tube, and a side wall against which the powder to be pulverized that has been pulverized by the impact member collides to further pulverize. The closest distance from the side wall to a margin of the impact member is shorter than the closest distance from the front wall of the pulverizing chamber opposed to the impact surface to the margin of the impact member to prevent pulverized powder from fusing, coagulating, and getting coarser, and prevent localized abrasion of an impact surface the impact member and the accelerating tube.

Pneumatic impact pulverizer system

A toner for developing an electrostatic image comprises toner particles containing a binder resin, a colorant and a wax. The toner contains polymerizable vinyl monomer or a mixture of organic solvent and polymerizable vinyl monomer in an amount of not more than 1,000 ppm. The toner particles are those obtained by mixing a mixture containing, at least, one or plural kinds of polymerizable vinyl monomer, a styrene-diene copolymer comprised of styrene or a styrene derivative and butadiene or isoprene in a copolymerization weight ratio of from 95:5 to 65:35, the colorant, the wax and a polymerization initiator to prepare a polymerizable monomer composition; dispersing the polymerizable monomer composition in an aqueous medium to carry out granulation; and polymerizing the polymerizable vinyl monomer in the aqueous medium.

Toner for developing electrostatic images, and process for its production

A toner for developing electrostatic images which comprises a toner particle produced by polymerizing a polymerizable monomer composition,

Toner for developing electrostatic images and process for producing toner

A gas stream classifier includes: a gas stream classifying means for classifying feed powder into at least a coarse powder fraction and a fine powder fraction by an inertia force acting on particles and a centrifugal force acting on a curved gas stream due to Coanda effect in a classifying chamber, and a feed supply pipe opening into the classifying chamber for supplying the feed powder into the classifying chamber. The efficiency of the classifier is improved by providing the feed supply pipe with a mixing zone for mixing an upper stream and a lower stream of the feed powder and an accompanying gas stream, respectively flowing through within the feed supply pipe. The classifier is particularly suitably used for producing a toner for developing electrostatic images having a sharp particle size distribution from toner particles having a weight-average particle size of at most 10 .mu.m, especially at most 8 .mu.m.

Growing community of inventors

Tokyo, Japan

Kazuyuki Miyano