Matches 1 - 50 out of 237 1 2 3 4 5 >
Match Document Document Title
7623815 Developing device and image forming apparatus  
There is provided a developing device including: a casing; a developing roller held by the casing and carrying a developing agent; and a layer-thickness regulating blade for regulating a layer...
7623807 Dynamic seal for component surfaces  
The present invention relates to seals which may be used in an image forming apparatus. The seals may prevent the leakage of image forming materials, e.g. as between a blade or a roll and an image...
7609994 Image developing apparatus and image forming apparatus using the apparatus  
An image developing apparatus includes an upper case; a lower case disposed on a lower side of the upper case, and internally housing a developing agent, and having an opening. A photoconductive...
7603053 Image forming apparatus  
A development device that has communication port sealing means for sealing a communication port communicating a developer supporter container with a developer container. The development device is...
7593666 Developing device with overlapping sealing members with reduced thicknesses  
A development device includes a plurality of soft members, wherein at least one of the plurality of soft members has an end portion having a shape section of which width is smaller toward a tip end...
7561820 Seals for an image forming apparatus  
The present invention relates to seals which may be used in an image forming apparatus. The seals may prevent the leakage of image forming materials, e.g. as between a blade and an image forming...
7536131 Developing device, image forming device and method of assembling developing device  
A developing device includes a sealing member for sealing an end of a developing roller to prevent developer from leaking from the interior of a casing. The casing includes a first plane and a...
7526225 Developing apparatus and assembly method of developing apparatus  
The blade back seal, which integrally comprises the side portions extending in the vertical direction at the longitudinal end portions of the leaf spring member and the connecting portion for...
7526224 Developing device, process cartridge, and image forming apparatus  
Gap among a leaf spring member of a layer-thickness regulating blade, a back-side member of a blade holder and a blade opposed portion of an upper seal is filled with grease. An internal seal is...
7512358 Developer supply device and developer  
A toner leakage restrainer is disposed in an opening formed in a development cartridge case. In the development cartridge, the toner which contains fine particles only in a small amount is...
7499662 Developing apparatus, process cartridge and image forming apparatus having toner leakage prevention member  
The sponge sealing member of the side seal is arranged on the roller opposed face of the seal arrangement portion so that the lower end face at the upstream side in the rotating direction of the...
7483647 Cartridge having a molded resin complex  
A cartridge mounted on an electrophotographic image forming apparatus includes a molded resin complex in which a first resin molded product and a second resin molded product are engaged with each...
7483646 Developer container, process cartridge, image forming apparatus and manufacturing method for developer container  
A developer container for an image forming apparatus, said developer container including a rotatable member; a container body for containing a developer; a sealing member, provided in the container...
7466937 Developer cartridge, liquid-type image forming apparatus having the same and method for disposing of the same  
A liquid-type image forming apparatus includes a developer cartridge, and a method for disposing of the developer cartridge. The developer cartridge includes a cartridge body having a first chamber...
7463843 Developing device  
A developing device includes toner, a casing accommodating the toner, a developing roller rotatably fixed on the casing, an elastic blade making contact with a circumferential surface of the...
7457560 Developing device  
A developing device is provided with a case main body, a developing roller coupled with the case main body, an axis direction seal member coupled with the case main body, and a side seal member...
7447463 Developing device and image forming apparatus  
A developing device includes an image supporting member; a developer supporting member for attaching developer to a latent image formed on a surface of the image supporting member for developing; a...
7437101 Toner container and toner filling method  
A toner container which is mountable and removable at a main body of an image forming apparatus, the toner container comprising: at least one toner filling port provided in a casing body of the...
7430383 Image forming device having a member for preventing developer leakage  
A development apparatus for use in an image forming device includes a developer storage chamber for storing developer, a developer carrier having a film of the developer formed thereon, wherein a...
7428393 Developing device, process cartridge, device unit, and image forming apparatus having a sealing member  
A highly reliable developing device, process cartridge, device unit, and image forming apparatus in which a developer is not spattered to the outside of the developing device even when the...
7400843 Color image forming apparatus  
A color image forming apparatus may include photoconductors, developing rollers, and cases, each configured to hold developer to be supplied to a corresponding photoconductor from a corresponding...
7386248 Image developing apparatus having a toner scatter preventing unit and image forming apparatus  
An image developing apparatus includes an upper case, and a lower case having an opening and containing a developing agent on a lower side of the upper case. A photoconductive drum in the upper...
7346291 Toner sealing elements for developing device and image forming apparatus having the same  
A developing device and an image forming apparatus having the same are provided. The developing device includes: a housing, which is formed by coupling an upper case and a lower case and in which a...
7340195 Image forming apparatus having a scattered toner sucking port  
An image forming apparatus includes: an image carrier with an electrostatic latent image formed thereon; a developing device for developing the electrostatic latent image into a toner image, a...
7336913 Developing apparatus, process cartridge and image forming apparatus for preventing leakage  
The blade back seal and the sponge sealing member are interposed between the leaf spring member and the blade attachment unit and seal arrangement portion while being compressed to have the same...
7333746 Developing device and image forming apparatus provided with same  
A developing device is arranged such that Dg<ds<3Dg, and 3Dg<dc<6Dg, where ds is an end gap, Dg is an upstream gap, and dc is a center gap. The gap ds is a gap between a developer tank ...
7324775 Image forming apparatus having developing device with sealing members and method of manufacture  
A developing device for developing a latent image borne on an image bearing body using a developer borne on a developer bearing roller, is provided with: a housing that is for containing the...
7277658 Sealing member for image forming device  
A sealing member for an image forming device as well as an apparatus and method of locating components within a printing device. The image forming device may include laser printers, ink-jet...
7254357 Method and apparatus for image forming capable of effectively regulating a toner layer, developing mechanism for the apparatus, and a process cartridge provided in the apparatus  
An image forming apparatus including a developer regulating member and sealing members. The developer regulating member regulates an amount of the developer carried by a developer carrying member,...
7251435 Developing device and printing device  
A developing device is provided, in which respective lateral ends (the portions overlapped with the side seals 27 ) of the front seal board 23 are adhered/fixed to the side seals 27 . More...
7239824 Cartridge and image forming apparatus  
A toner receiving member, which is open upward, is provided at a position vertically below a lower end of a contact surface between a side seal member and a developing roller. The toner receiving...
7231164 Developing unit, developing cartridge, and image forming apparatus  
A developing unit detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a developing member for developing an electrostatic latent image formed on an...
7215902 Developing cartridge, process cartridge, image forming device, and sliding sealing element  
A side seal for preventing the leakage of toner out of a housing frame is disposed at each end portion in the axial direction of a developing roller within the housing frame, and is configured of a...
7212763 Image forming apparatus and seal portion for use in the same  
An image forming apparatus including: an image forming apparatus main unit; an image carrier provided in the image forming apparatus main unit; at least one developing device supported retractable...
7206535 Developing device and image forming apparatus  
A developing device includes a photosensitive body ( 18 ) on which a latent image formed, and a developing roller ( 2 ) that rotates to supply a toner to the photosensitive body ( 18 ). Seal...
7206534 Process cartridge, developing cartridge and gripping part therefor  
A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes a frame; an electrophotographic photosensitive drum; a...
7197259 Developing apparatus and image forming apparatus that incorporates the developing apparatus  
A developing apparatus includes a developing roller and a sealing member. The developing roller applies toner to an electrostatic latent image to develop the electrostatic latent image. The sealing...
7197258 Developing cartridge and an electrophotographic image forming apparatus having the same  
A developing cartridge includes a casing having a toner chamber, a feeding roller installed within the toner chamber, a developing roller supplied with a toner from the feeding roller, and a...
7190920 Developing cartridge, air communication unit of developing cartridge and toner cartridge  
A developing cartridge 12 includes a housing 43 which has a peripheral surface and two end faces formed on both sides of the peripheral surface, and a toner containing space 45 which is...
7184683 Powder container, powder contained product, powder container manufacturing method, powder contained product reusing method, toner container and toner contained product  
A toner container for supplying and/or replenishing toner into a development apparatus of image forming apparatus, by being engaged with the rotation transfer member of the development apparatus...
7177565 Sealing structure for a toner cartridge  
A toner cartridge includes improved sealing mechanisms to prevent the escape of toner from the cartridge. Soft and rigid seals are used to seal the distal ends of the developer roller and doctor bar.
7162180 Elastic roller  
The present invention provides an improved elastic material which is free of roller abrasion when used in development rollers and overcomes disadvantages of the conventional silicone rollers of...
7155137 Process cartridge, developing cartridge and developing roller  
A developing cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes a developing roller, for developing an electrostatic...
7110697 Developer layer thickness regulating device for a developing unit  
A developer layer thickness regulating device for a developing unit improves the sealing effect of a developer by regulating a thickness of a developer layer formed on a developing roller. The...
7088938 Seal member, developing apparatus, process cartridge and image forming apparatus  
A seal member for sealing the developer container at a boundary between the developer container and a developer carrying member is disposed at an opening of a developer container containing...
7068961 Developing device, image forming apparatus, image forming system, sealing member, and method for manufacturing sealing member  
A developing device includes: a developer container for containing developer; a developer bearing body for bearing the developer; a charging member for charging the developer bore by the developer...
7062195 Toner seal member, and process cartridge  
A toner seal member which is maintainable in contact with a rotating member to seal a toner. The toner seal member has a non-woven fabric sheet on a support layer formed of an elastic member, and...
7027753 Image forming apparatus for preventing image deterioration caused by fallen conductive brush and scatter of developer  
An image forming apparatus includes a latent image carrier, a charging member, a conductive brush member that cleans the charging member, a developer carrier including magnetic field generating...
6996353 Spring loaded plastic toner seal retainer  
A device for sealing a magnetic roll to a developer housing includes a plastic retainer having side walls that are spring loaded with a felt seal adhesively positioned within the side walls. The...
6985683 Method of mitigating toner damage in high speed contact developing with end seal  
A developer roller ( 5 ) is rotated rapidly for high speed printing, which can cause excessive heating at end seal ( 1 ). Heat damage to toner ( 24 ) is avoided by providing gaps ( 30 a, 30 b )...
Matches 1 - 50 out of 237 1 2 3 4 5 >