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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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7474866 |
Sealing member, toner supply container, and toner supply system
A coupling member of a toner supply container in a toner supply system detachably mountable to an image forming apparatus, includes a rotatable engagement portion provided with a hook portion which...
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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...
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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...
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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...
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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...
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7386249 |
Roller with mechanical properties influenced by rotation
A roller capable for use as a developer roller in a printer including a roll body having a surface, wherein the roller provides a first surface flexibility (SF 1 ) when the roller rotates in one...
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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...
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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...
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7310488 |
Belt device and image forming apparatus
A belt device includes an endless belt, a plurality of rollers around which the endless belt is wound, and a foreign material entry preventing member disposed on at least one side of the endless...
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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...
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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...
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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...
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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...
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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.
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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...
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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...
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6980753 |
Developing device for an image forming apparatus and bearing seal structure for the same
A bearing seal structure of the present invention is applicable to a developing device included in an image forming apparatus. The structure includes two seal members included in a bearing portion...
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6980752 |
Developing cartridge
A developing cartridge has a housing that accommodates developer therein. Rotatably mounted in the housing is a developing roller. The housing has side seals provided at each end of the developing...
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6978099 |
Developing apparatus, process cartridge, and electrophotographic image forming apparatus including an elastic member preventing a gap between a developing agent carrier and a layer thickness limiter from changing, and an electrophotographic image forming apparatus detachably mounting such process cartridge
The present invention relates to a developing apparatus for developing an electrostatic latent image formed on an electrophotographic photosensitive drum using a developing agent, including a...
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6834170 |
Developing apparatus having sealing member preventing toner leakage
A developing apparatus includes sealing members which are installed on both inside walls of a housing and closely contact the housing, a developer roller, and a blade to prevent the toner contained...
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6826378 |
Developing device and developing method
The image forming apparatus is equipped with developer containers for housing developers and a developer carrier that is arranged at the opening of the developer container that is rotatable for...
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6823153 |
DEVELOPING DEVICE AND PROCESS CARTRIDGE COMPRISING FIRST AND SECOND SEALING MEMBERS AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS COMPRISING A DEVELOPING DEVICE COMPRISING FIRST AND SECOND SEALING MEMBERS
A developing device includes a developing member for developing the latent image, an exposure optical path, a developer containing portion, a vent port for allowing air in the inside of the...
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6792227 |
Developing agent container including a sealing element for preventing developing agent from leaking out
A side seal is doubly provided to prevent toner from leaking outside each end of a housing that accommodates a developing roller in position, with respect to an axial direction of the developing...
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6760555 |
System for and method of toner flow control
The present invention is directed to a sealing mechanism for use in a toner cartridge. The sealing mechanism includes a developer roller and a toner plow. The developer roller has an outer...
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6714749 |
Cartridge detachably mountable on image forming apparatus
A cartridge detachably mountable on an image forming apparatus, including a frame and a blade member held by the frame, wherein a double-sided adhesive tape is stuck between the frame and the blade...
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6654575 |
Developer container having sealing member
A developer container includes a developer containing unit containing a developer and a sealing member supplied between a plurality of members to prevent leakage of the developer. The sealing...
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6574444 |
Developing apparatus wherein seal-inflicted damage to an end edge of a developing roller is prevented
A developing apparatus includes a developing container for containing a developer therein. A developing carrying member, provided in an opening portion of the developing container, for developing...
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6496668 |
Image developing device with sealing members for preventing toner leakage
A developing device for developing a latent static-electric image into a visible image from developer. Various members for preventing toner leaks are attached to the developing case. A lower-edge...
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6487383 |
Dynamic end-seal for toner development unit
An article used to seal the interface between the developer roll, doctor blade and developer housing in a laser printer toner cartridge is described. The sealing member described in the present...
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6484000 |
Sealing member which prevents contamination when removed and container having the sealing member
A sealing member for sealing an opening of a container is provided with a sealing face facing contents in the container. This sealing face is formed into a shape without being externally exposing...
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6405003 |
Seal structure providing an improved sealing function and reducing an amount of heat generated by friction
A seal structure comprising a seal member for preventing toner from leaking out of a casing, the seal member adhesively provided and compressively deformed between an interior floor portion of the...
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6336015 |
Developing apparatus with regulating member seal member and magnetic seal member
A developing apparatus includes a developing frame and a developer carrying member provided in the developing frame, for carrying a developer to a developing position for developing an...
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6195515 |
Developing apparatus including a seal member sandwiched between a developer bearing member and a leakage preventing member
A developing apparatus includes a seal member, which is sandwiched between a developer bearing body and a leakage preventing member in an end portion, and in a lengthwise direction, a length of a...
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6169867 |
Toner-guiding sheet, cleaning apparatus, process cartridge, and image forming apparatus
A toner-guiding sheet for guiding toner removed from an image carrying member. The sheet includes a free end portion for contacting a surface of the image carrying member, and a fixed portion,...
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6118958 |
Sealing member, sealing member mounting method, developing apparatus, process cartridge, process cartridge remanufacturing method and image forming apparatus
A developing apparatus usable with an image forming apparatus includes a frame having developing device; a toner accommodation container having an opening for supplying toner to the developing...
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6115566 |
Seal member for impeding leakage of toner in a printing apparatus
A seal member seals a housing that accommodates fine particles used for printing images and a movable member for feeding the particles to a printing mechanism. The seal member resists leakage of...
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6094550 |
Developing apparatus
An electrophotography developing apparatus has been developed which can protect a developer holder and a layer thickness control member from damage. The device also prevents internal scattering of...
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6070027 |
Developing apparatus with auxiliary seal disposed outside of end seal
A developing apparatus including a developing frame, a developing roller disposed at an opening portion of the developing frame and adapted for bearing a developing agent, a first seal member for...
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6044237 |
Developing apparatus
The present invention provides a developing apparatus comprising a developing container for containing magnetic developing agent, a developing agent bearing member provided an opening portion of...
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6002898 |
Developing cartridge and image forming apparatus
A developing cartridge for developing a latent image formed on the photosensitive member, wherein the developing cartridge is detachably mountable to a main assembly of an electrophotographic image...
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5987277 |
System for transferring toner to and from a photosensitive drum in a printing process unit
A space between side seals at both sides of a supplying roller becomes gradually wide by inclining the leading edges of the side seals for making a width W1 at a position immediately before the...
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5966565 |
Composite cleaner seal for electrophotographic machines
A cleaning seal with a soft cleaning seal tip provides a seal between the cleaning housing and the photoconductive member in an electrophotographic machine. The cleaning seal is made of a...
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