Matches 1 - 50 out of 57 1 2 >


Match Document Document Title
US20090148195 DEVELOPING ROLLER, DEVELOPING APPARATUS, AND IMAGE FORMING APPARATUS  
A developing roller includes a cylindrical sleeve that holds developer on a peripheral surface thereof, and a magnet roller being provided in the sleeve and having a plurality of magnetic poles....
US20070059047 Development roller, surface treatment device and wire member  
A development roller, including a development sleeve disposed near a photo conductive drum, a magnetic roller disposed in the development sleeve, and a supplying device configured to supply a...
US20090060591 DEVELOPING ROLLER, DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS  
A developing roller includes a developing sleeve and a magnet roller disposed within the developing sleeve to attract developer to an outer surface of the developing sleeve by magnetic force. The...
US20060034645 Magnetic roller sleeve for toner cartridge of printer  
A magnetic roller sleeve for toner cartridge of printer, wherein the cylinder surface of the sleeve is covered with a coating layer comprising: one or more resins highly adhesive to the sleeve...
US20090110441 MAGNETIC ROLLER, DEVELOPMENT DEVICE, AND IMAGE FORMING METHOD  
A development device configured to develop a latent image with developer including toner and carrier includes a development roller configured to carry the developer. The development roller...
US20060222417 Two-component developing device and image forming apparatus including the same  
A two-component developing device includes a photosensitive body, a hollow developing sleeve rotating oppositely to the photosensitive body and carrying a mixed developer of a carrier and a toner,...
US20120057907 DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS INCLUDING SAME  
A development device including a developer container, a developer bearer, a magnetic field generator, a developer agitator to supply the developer to the developer bearer, and a developer...
US20090245887 DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE COMPRISING THE SAME  
To downsize a developing device in the developing carrier axial direction without generating image concentration irregularities from recirculation of developer in the magnetic roller end regions,...
US20080298847 DEVELOPING DEVICE AND IMAGE FORMING APPARATUS  
A developing device uses a two-component developer including at least carriers and toners. The toners are supplied to an image bearing member bearing an electrostatic latent image so that a toner...
US20110044729 HIGH-FREQUENCY BANDING REDUCTION FOR ELECTROPHOTOGRAPHIC PRINTER  
A method for reducing high-frequency banding in an electrophotographic development station having a rotating shell and a rotating magnetic core is disclosed. A rotating angular velocity of the...
US20070104517 Image forming apparatus and color image forming apparatus  
In a color image forming apparatus of the invention, a developing roller of a developing device includes a magnet roller that is configured such that a developer supply pole, a developer convey...
US20150253690 DEVELOPING DEVICE  
A developing device includes a developing sleeve having a plurality of grooves, and a magnetic field generating portion configured to be disposed on an inner side of the developing sleeve and...
US20080267672 DEVELOPING DEVICE, IMAGE SUPPORTER UNIT, AND IMAGE FORMATION APPARATUS  
A developing device includes: a developer supporter that includes: a magnet member that has a plurality of magnetic poles; and a cylinder member; and a thickness regulation member wherein, of the...
US20130243495 DEVELOPING APPARATUS  
In the case where V-groove portions in a surface of a developing sleeve are located in the closest position between the developing sleeve and a regulating blade, an angle θ formed by a slope...
US20110044728 METHOD AND SYSTEM TO REDUCE HIGH-FREQUENCY BANDING FOR ELECTROPHOTOGRAPHIC DEVELOPMENT STATIONS  
A method for reducing high-frequency banding in an electrophotographic development station having a rotating shell and a photoconductor is disclosed. A rotating speed of the rotating shell is...
US20110142501 DEVELOPMENT ROLLER INCLUDING A DEVELOPMENT SLEEVE, SURFACE TREATMENT DEVICE THAT TREATS AN OUTER SURFACE OF THE DEVELOPMENT SLEEVE AND WIRE MEMBER THAT ROUGHENS THE OUTER SURFACE OF THE DEVELOPMENT SLEEVE  
A development roller, including a development sleeve disposed near a photo conductive drum, a magnetic roller disposed in the development sleeve, and a supplying device configured to supply a...
US20060216070 Casing for transporting a toner mixture and method for producing a casing of this type  
A casing is provided for transport of a toner mixture on its outer surface in a development device. An outer surface of a metal casing is chemically pre-treated. In a subsequent chemical...
US20050095038 Developer carrying member and developing apparatus  
In a developer carrying member used in a developing apparatus by means of which an electrostatic latent image formed on an electrostatic latent image bearing member is developed with a developer...
US20070231019 Image forming method and image forming apparatus  
Disclosed is an image forming method, containing a development step of developing an electrostatic latent image formed on an electrostatic image supporting material using a toner formed on a...
US20150104220 DEVELOPING APPARATUS  
A developing apparatus includes a sleeve for carrying a developer including toner and magnetic carrier, the sleeve having a plurality of grooves extending in a longitudinal direction; a magnet...
US20150261135 DEVELOPMENT ROLLER, DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS  
A development roller includes a substantially cylindrical development sleeve that has an axis and rotates about the axis; and a magnet portion that is provided in the development sleeve and has...
US20120195647 DEVELOPING DEVICE  
A developing device includes a plurality of developer carrying members each for carrying at its surface a developer for developing an electrostatic latent image on an image bearing member. Of the...
US20150220017 DEVELOPING DEVICE AND IMAGE FORMING APPARATUS  
A developing device, comprising: a developer bearing member which bears a two-component developer including a toner and carrier; a magnet member disposed inside the developer bearing member, the...
US20150177644 DEVELOPING ROLLER, DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS INCLUDING DEVELOPING DEVICE  
A developing roller includes a roller main body disposed to face, without contact, an outer circumferential surface of an image carrier. The roller main body includes a resin coat layer that is...
US20150078788 DEVELOPING DEVICE AND IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE INCORPORATING SAME  
A developing device includes a developer bearer to carry, by rotation, developer including toner and magnetic carrier to a development range facing a latent image bearer, and the developer bearer...
US20130136506 DEVELOPING DEVICE  
A developing device includes first and second developer carrying members for developing an electrostatic latent image formed on an image bearing member. The first developer carrying member has a...
US20100247165 DEVELOPING DEVICE, METHOD OF PRODUCING DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS  
A developing device includes a magnet roll magnetized with plural magnetic poles including a main magnetic pole, a sleeve in a cylindrical shape which is arranged so as to be opposed to an image...
US20100183343 DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS  
Provided is a development device and an image forming apparatus that realize high image quality with improved decrease in density at high speed development and with reduced occurrence of...
US20100158578 DEVELOPMENT ROLLER, DEVELOPMENT DEVICE, PROCESSING CARTRIDGE AND IMAGE FORMING DEVICE  
An image forming device comprises a process cartridge. The process cartridge comprises a development roller. The development roller comprises a magnet roller and a developing sleeve 132. The...
US20170090351 DEVELOPING APPARATUS, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS  
With a first line segment being a line segment that joins an axis line of a developer carrier and an axis line of an image carrier, a second line segment being a line segment that joins a...
US20170068182 DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS  
What is provided is an image forming apparatus in which longitudinal end portions of a developer bearing region or longitudinal end portions of an opening are respectively located outside...
US20170060034 DEVELOPING DEVICE  
A developing device includes a developing container, a developing sleeve, a magnet and grooves provided at a surface of the sleeve and formed along a direction crossing a circumferential direction...
US20160313692 SPRING BEARING FOR USE IN A TONER CARTRDIGE ROLLER SYSTEM  
The present disclosure is directed to a spring bearing which is used in a roller system for a toner cartridge. The spring bearing has a front surface and a rear surface and an angled relief cut...
US20160266519 DEVELOPING DEVICE AND IMAGE FORMING APPARATUS  
A developing device includes a container in which developer is contained; and a developer carrier disposed in the container, the developer carrier including a magnet member having magnetic poles,...
US20160154343 Magnetic Roll for a Dual Component Development Electrophotographic Image Forming Device  
An outer sleeve of a magnetic roll for a dual component development electrophotographic image forming device according to one example embodiment includes a series of grooves in an outer surface of...
US20160091831 End Sealing and Magnetic Field Truncation of a Magnetic Roll of a Dual Component Development Electrophotographic Image Forming Device  
A developer unit according to one example embodiment includes a housing having a reservoir for storing a developer mix that includes toner and magnetic carrier beads. A magnetic roll includes a...
US20160091829 DEVELOPING UNIT  
A multipolar magnet is arranged inside a developer bearing member. A partitioning wall is arranged such that an apex position thereof is located between the developer bearing member and a first...
US20150362864 IMAGE FORMING APPARATUS  
An image forming apparatus, comprising: a developing device developing an electrostatic latent image formed on an image bearing member, the developing device accommodating developer, the...
US20150338780 IMAGE FORMING APPARATUS  
An image forming apparatus includes: a developer carrying member (sleeve) including a magnet and grooves; and an image bearing member (drum). The electrostatic image on the drum is developed with...
US20150227087 IMAGE FORMING APPARATUS  
An image forming apparatus includes: a developing container; a concave-convex member which has a plurality of grooves formed in a rotation direction; a collecting portion; and a receiving member,...
US20150227086 DEVELOPING DEVICE AND IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE INCORPORATING SAME  
A developing device includes a developer bearer to carry, by rotation, developer including toner and magnetic carrier to a development range facing a latent image bearer to bear a latent image....
US20150227077 DEVELOPING DEVICE AND IMAGE FORMING APPARATUS  
A toner bearing member has a plurality of convex portions formed on the surface thereof and extended in a direction crossing a developer carrying direction. An opening width between the adjacent...
US20150177652 DEVELOPING DEVICE, IMAGE FORMING APPARATUS  
Developing device includes developing roller and magnetic roller. Developing roller includes aluminum oxide thin film and resin coat layer. Magnetic roller is disposed to face, without contact,...
US20150177651 DEVELOPING ROLLER, DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND MANUFACTURING METHOD OF DEVELOPING ROLLER  
A developing roller includes a roller main body disposed to face, without contact, an outer circumferential surface of an image carrier. The roller main body includes an aluminum oxide thin film...
US20150177643 DEVELOPING ROLLER, DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS INCLUDING DEVELOPING DEVICE  
A developing roller includes a roller main body disposed to face, without contact, an outer circumferential surface of an image carrier. In the roller main body, a boehmite layer has been formed...
US20150177642 DEVELOPING ROLLER, DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS INCLUDING DEVELOPING DEVICE  
A developing roller includes a roller main body disposed to face, without contact, an outer circumferential surface of an image carrier. A resin coat layer has been formed on an outer...
US20150104221 DEVELOPING DEVICE AND IMAGE FORMING APPARATUS  
A developing device includes a developing roller. The developing roller includes a magnetic roller configured to have multiple magnetic poles in a circumferential direction thereof and a...
US20140356031 ROLLER, DEVELOPING ROLLER, DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS  
A roller includes a cylindrical body having openings on both ends thereof and a press-fit member fitted in at least one of the openings of the cylindrical body with an outer circumferential face...
US20140161493 DEVELOPING DEVICE AND IMAGE FORMING APPARATUS  
The developing device includes: a developing container that stores a developer including a non-magnetic toner and a magnetic carrier; a toner bearing member that bears the toner and conveys the...
US20140023408 DEVELOPING DEVICE AND IMAGE FORMING APPARATUS  
There is provided a developing device including a first developing roller that is disposed to be rotatable with a desired distance set between the first developing roller and an outer...

Matches 1 - 50 out of 57 1 2 >