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| Number | Title | Issue Date |
| 8190064 | Developing apparatus with agitating portion and image forming apparatus provided with the same A housing of a developing apparatus is provided with a conveying member and first and second agitating members. A guide is provided in an inner bottom surface of the housing between the first and second agitating members. The guide has a mountain shape with a wide f... | 05/29/2012 |
| 8185021 | Developing device and image forming apparatus A developing device includes a developing unit, a developer agitating unit, a developer conveying unit, and a toner supplementing unit. The developing unit develops an electrostatic latent image on an image carrier with a developer containing toner and carrier. The ... | 05/22/2012 |
| 8170451 | Developing apparatus including guide for preventing packing and leaking of developer and image forming apparatus provided with the same A housing of a developing apparatus is provided with a conveying member in a developer supplying and recovering portion, and with first and second agitating members rotating from the below to the above in portions opposed to each other in a developer agitating porti... | 05/01/2012 |
| 8155565 | Developing device with a toner flow guide plate and image forming apparatus A developing device for developing an electrostatic latent image formed on an photoreceptor drum with a dual-component developer, includes: a developing hopper for storing the developer; an agitation roller for conveying the developer while agitating; a developing r... | 04/10/2012 |
| 8135311 | Developing unit having effective developer transportability, and process cartridge and image forming apparatus using the same A developing unit includes a developer carrying member, a supplying compartment, a recovery compartment, and an agitation compartment. The developer carrying member develops a latent image formed on an image carrier with a two-component developer. The supplying comp... | 03/13/2012 |
| 8135312 | Development apparatus 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 s... | 03/13/2012 |
| 8126370 | Developing unit and image forming apparatus having the same Disclosed are a developing unit, in which a developing agent storing part is closed by an agitating member, and an image forming apparatus having the same. The developing unit includes a developing agent storing part to store a developing agent, a developing part co... | 02/28/2012 |
| 8126371 | Developing device and image forming apparatus and toner supplying method using the same A developing device includes: a developing vessel for storing a developer D containing a toner and a magnetic carrier; a first conveying passage for conveying the developer; a first conveying member provided in the first conveying passage for agitating and conveying... | 02/28/2012 |
| 8112016 | Developing agent circulation system and image forming apparatus using same A development agent circulation unit includes a development unit, an agitation unit, and a rotary feeder. The development unit develops a latent image on an image carrier using a developing agent. The agitation unit agitates developing agent recovered from the devel... | 02/07/2012 |
| 8112017 | Developing unit and developer stirring and transporting method There are provided a developing unit and a developer stirring and transporting method in which the amount of developer in the developing unit can always be kept at a specified amount without being influenced by a use environment. A developing unit 10 includes... | 02/07/2012 |
| 8107859 | Configuration for an agitation system in a developing device and process cartridge A developing device including a flexible agitating blade attached to an agitating member is described. The developing device may receive developer from a developer cartridge via a replenishing port. The replenishing port may be configured to prevent the flexible agi... | 01/31/2012 |
| 8099025 | Toner stirring device having a pushing member and rotation member for an image forming apparatus A toner containing section contains toner, and includes a toner stirring member penetrating the toner containing section for stirring the toner. A rotation member is attached to the toner stirring member and revolves around a rotational shaft of the toner stirring m... | 01/17/2012 |
| 8095046 | Image forming apparatus and image developer used therein An image forming apparatus, including a surface-traveling latent image bearer bearing a latent image on the surface thereof; an image developer feeding a toner in a two-component developer including the toner and a carrier to the latent image in a developing area fa... | 01/10/2012 |
| 8090300 | Powder conveying apparatus A powder conveying apparatus, comprising a powder container for storing powder and a powder agitating/conveying member provided in the powder container, wherein the powder agitating/conveying member includes: a shaft revolving around the axis; a primary conveying bl... | 01/03/2012 |
| 8086144 | Developing apparatus and developer cartridge A developing apparatus includes a developing roller and a feed roller accommodated in a developing chamber of a developing frame, a first agitating member accommodated in a storing chamber of the developing frame for agitating the developer by rotating in a prescrib... | 12/27/2011 |
| 8086143 | Image forming apparatus for use with carrier including a core and cover layer An image forming apparatus including an image bearing member; and a developing device including a developer bearing member, a developer containing portion, a developer supplying passage supplying the developer to the developer bearing member while feeding the develo... | 12/27/2011 |
| 8081907 | Developer feeding apparatus and developing apparatus Cones whose rotation axes are substantially parallel to each other and whose sides maintain a constant interval therebetween are provided in a driving force transmission unit to transmit a driving force to a developer feeding member, a roller to transmit the driving... | 12/20/2011 |
| 8055161 | Image forming apparatus, developing unit thereof and method for controlling developing unit An image forming apparatus, a developing unit thereof and a method of controlling the developing unit. The image forming apparatus includes a photosensitive body on which an electrostatic latent image is formed, a light scanning unit which scans a beam onto the phot... | 11/08/2011 |
| 8045893 | Developing device and image forming apparatus including inclined transport screw A developing device that can discharge developer by an amount of developer in the developing device increased by a carrier supplemented into the developing device includes a supply transport screw and a receiving transport screw in a top and bottom positional relati... | 10/25/2011 |
| 8045896 | Developing device and image forming apparatus using the same A developing device includes a developing vessel for storing a developer, a first conveying passage, a second conveying passage, a first conveying member and a second conveying member to supply toner to a photoreceptor drum. The first conveying member includes a fir... | 10/25/2011 |
| 8045894 | Image forming apparatus having a remaining developer circulation mechanism An image forming apparatus includes: a plurality of photosensitive members; at least one retaining member configured to temporarily retain remaining developer remaining on a corresponding photosensitive member; a belt arranged opposite to the plurality of photosensi... | 10/25/2011 |
| 8045892 | Developing unit, process cartridge, and image forming method and apparatus incorporating an agitation compartment A developing unit used in an image forming apparatus with a latent image carrier includes a developer carrier, a supply compartment, a recovery compartment, a separation member, and a gap. The developer carrier facing the latent image carrier rotates while carrying ... | 10/25/2011 |
| 8045895 | Developing device and image forming device A developing device has: a developer housing chamber in which developer is housed; a developer holding member holding developer by magnetic force; a partitioning wall having an overlapping region that, in a transparent plan view, is positioned upward of the develope... | 10/25/2011 |
| 8036575 | Development device, image forming apparatus, and process cartridge having compact structure for discharging developer In a development device for containing a developer and developing an electrostatic latent image formed on an image carrier, a supplier supplies fresh developer to the development device. A developer carrier carries the developer to be supplied to the electrostatic l... | 10/11/2011 |
| 8032063 | Developing device and image forming apparatus with the same An image forming apparatus includes a photosensitive member and a developing device. The developing device includes a developing roller to supply a developer to the photosensitive member and a casing defining an external appearance of the developing device. A first ... | 10/04/2011 |
| 8032062 | Developing unit and image forming apparatus with magnet bearing members A developing unit is configured to develop an electrostatic latent image born on an image bearing member with a developer that has been charged by mixing and agitating toner and magnetic carrier. The developing unit comprises a developing hopper; a developer bearing... | 10/04/2011 |
| 8027619 | Toner container having a toner agitating function unit with a tubular member having axially spaced ring pieces and openings between the ring pieces A toner container is mounted to an image forming apparatus in a state of containing toners. The toner container includes: a container body for containing toners; and an agitating unit provided in the container body for agitating the toners. The agitating unit includ... | 09/27/2011 |
| 8010020 | Developing device and image forming apparatus equipped with the same The developer conveyance amount on the upstream side of an agitation conveyance path in a developer conveyance direction becomes larger than the amount of developer to be transported from a recovery conveyance path to the agitation conveyance path, by making the dev... | 08/30/2011 |
| 8005405 | Developing unit and developer stirring and transporting method A developing unit and a developer stirring and transporting method are provided that enable smooth discharge of a developer in the developing unit without being affected by the inclination of the developing unit. A developing unit 10 has a developing roller | 08/23/2011 |
| 8000635 | Developer homogenizer for multi-engine printing system An apparatus and method for homogenizing developer allow variations in image quality between marking engines to be reduced. The apparatus includes a developer homogenizer in communication with the marking engines which receives developer from the first marking engin... | 08/16/2011 |
| 8000634 | Image forming apparatus and cartridge An image forming apparatus includes: an electrostatic latent image bearing member; a toner cartridge; a developing member; a transfer member; a developing device; a toner-circulating member; a drive-force output unit; and a circulating-member driving unit. The toner... | 08/16/2011 |
| 7995954 | Developing device and image forming apparatus including same which includes a supply path and a recovery path A developing device including a developer container casing, a developer bearing member to supply toner to a latent image, a supply path to convey developer in an axial direction of the developer bearing member, a supply conveyance member to apply a force to the deve... | 08/09/2011 |
| 7991330 | Developing unit including developer conveyance system having supply path, recovery path, and agitation path, process cartridge including developing unit, and image forming apparatus including process cartridge A developing unit includes a developer bearing member, a developer transporter, a developer conveyance system for directing the developer, including a supply path, a recovery path, and an agitation path, a developer supply opening through which the developer is supp... | 08/02/2011 |
| 7979007 | Developing device and image forming apparatus using the same A developing device includes a developing vessel for storing a developer, a first conveying passage, a second conveying passage, a first conveying member, a second conveying member and a developing roller for supplying toner to a photoreceptor drum. The first convey... | 07/12/2011 |
| 7979006 | Image forming apparatus and removable cartridge An image forming apparatus includes: an electrostatic latent image bearing member; a toner cartridge; a developing member; a transfer member; a developing device; and a circulating member. The toner cartridge is removably coupled to the developing device. The develo... | 07/12/2011 |
| 7974556 | Development device, process cartridge, and image forming apparatus A development device includes a screw conveyer to convey powder contained in a development casing in a direction along a shaft of the screw conveyer, a bearing in which the screw conveyer is inserted, a cylindrical member provided around the screw conveyer and dispo... | 07/05/2011 |
| 7974555 | Development apparatus and image forming apparatus A development apparatus 8 has developer transport members 26 and 27 respectively contained in containers 22 and 23 and transporting developer while stirring the developer and passing the developer to each other at a passing portion... | 07/05/2011 |
| 7965962 | Developing device having gears with moveable positions A developing device includes a developing housing that supports a developer carrier, and a developer cartridge. The developer cartridge includes a cartridge housing that is configured to accommodate developer, an agitator that is provided in the cartridge housing an... | 06/21/2011 |
| 7957678 | Image forming apparatus capable of effectively developing images An image forming apparatus, a process cartridge, and a developing unit includes a developer carrying member to carry developer, first and second rotary members arranged in parallel to each other and configured to rotate to agitate and convey the developer, and an en... | 06/07/2011 |
| 7953350 | Developing device for developing latent images to toner images A developing device including a development part for developing latent images to toner images. The developing device also includes an agitation part that agitates developer, and a controller, which controls an agitation strength of an agitator in the agitation part.... | 05/31/2011 |
