| Entries |
| Document | Title | Date |
|---|
| 20080279581 | POWDER CONVEYANCE DEVICE, PROCESS UNIT, AND IMAGE FORMING DEVICE - A powder conveyance device is disclosed that enables plural powder conveyance paths to be easily and reliably attached and detached. The powder conveyance device includes a first housing including a first powder conveyance path, and a second housing including a second powder conveyance path, the first housing and the second housing being detachably attached to each other. A projection portion is provided in the first housing, the projection portion having a hole in communication with the first powder conveyance path, and a hole portion is provided in the second housing, the hole portion being in communication with the second powder conveyance path. When attaching the first housing to or detaching the first housing from the second housing, the projection portion is inserted into or drawn out of the hole portion. | 11-13-2008 |
| 20090317124 | METHOD FOR PRODUCING CLEANING DEVICE AND CLEANING DEVICE - A method for manufacturing a cleaning device of the image forming apparatus, the method includes: applying a liquid material to an area outer than an edge located at an end portion of a toner accommodating portion in the longitudinal direction of a toner removing member, wherein the liquid material is applied so as to satisfy one of the predetermined conditions. | 12-24-2009 |
| 20100054795 | IMAGE FORMING APPARATUS AND IMAGE FORMING UNIT - An image forming apparatus is provided with an image bearing member for bearing a toner image while rotating, a developing device including a developing roller for supplying toner to a surface of the image bearing member and a pair of gap rollers held in contact with opposite end portions of the image bearing member to define a specified gap between the developing roller and the surface of the image bearing member, and a lubricant applicator for applying a lubricant to parts of the opposite end portions of the image bearing member where the gap rollers are in contact. | 03-04-2010 |
| 20100266310 | VISIBLE IMAGE FORMING DEVICE AND IMAGE FORMING APPARATUS - An image forming apparatus includes an image carrier, a developing device, a developer container and a hole connection member. The developing device is provided so as to be movable in a direction in which it comes close to and goes away from the image carrier. And, the developing device develops a latent image formed on the surface of the image carrier into a visible image. The hole connection member is supported so as to be movable relative to an inlet of the developing device in the movable direction of the developing device and connects the inlet and an outlet of the developer container. | 10-21-2010 |
| 20110188882 | IMAGE FORMING APPARATUS - There is provided an image forming apparatus capable of suppressing the variance of image density. | 08-04-2011 |
| 20110280610 | TONER BOX AND DEVELOPING DEVICE FOR IMAGE FORMING DEVICE - A toner box for being detachably mounted in a developing unit of an image-forming device, includes: a main body; a shutter; a shutter cover; and a toner seal. The main body is configured to accommodate toner therein and has a main-body-side communication through-hole, through which an interior and an exterior of the main body communicate. The shutter is disposed so as to be capable of moving between an open position in which the shutter opens the main-body-side communication through-hole, and a closed position in which the shutter closes the main-body-side communication through-hole. The shutter cover is configured to cover part of the shutter. The shutter cover has a cover-side communication through-hole at a position corresponding to the main-body-side communication through-hole to allow communication of toner through the main-body-side communication through-hole. The toner seal is configured to be disposed between the main body and the shutter and surround a perimeter of the main-body-side communication through-hole when the shutter is in the closed position. A leading edge of the shutter defined in a closing direction, in which the shutter is moved from the open position to the closed position, is positioned on an upstream side of the main-body-side communication through-hole in the closing direction when the shutter is in the open position. Part of the shutter is covered by a portion of the shutter cover surrounding the cover-side communication through-hole when the shutter is in the closed position. | 11-17-2011 |
| 20110311265 | PROCESS CARTRIDGE - A process cartridge detachable from an electrophotographic image forming apparatus includes an electrophotographic photosensitive member, a cleaning frame member, a developer bearing member, a development frame member, a flexible sheet member, and a protection member. The electrophotographic photosensitive member forms an electrostatic latent image. The cleaning frame member supports the electrophotographic photosensitive member. The developer bearing member develops the electrostatic latent image using a developer. The development frame member supports the developer bearing member. The flexible sheet member is fixed onto a seating surface with one end side thereof and contacts the developer bearing member with the other end thereof, for preventing leaking of a developer from between the developer bearing member and the development frame member. The protection member is attached to the cleaning frame member, for protecting the electrophotographic photosensitive member. The protection member includes a pressing portion at the back side of the seating surface, for suppressing deformation of the seating surface. | 12-22-2011 |
| 20120057896 | CLEANING DEVICE, IMAGE FORMING APPARATUS, AND CLEANING METHOD - A cleaning device includes a cleaning member that cleans a surface of an image carrier by removing developer from the surface of the image carrier, the developer remaining on the surface of the image carrier instead of being transferred onto a transfer body; a housing that receives the developer removed by the cleaning member; a transporting member provided in the housing, the transporting member transporting the developer toward an end of the image carrier in a rotational axis direction; a first sealing member that fills a gap between the image carrier and the housing at an upstream side in a transporting direction of the developer; and a second sealing member that fills a gap between the image carrier and the housing at a downstream side in the transporting direction of the developer, the second sealing member having a denser structure than the structure of the first sealing member. | 03-08-2012 |
| 20120099887 | IMAGE FORMING APPARATUS - It is disclosed an image forming apparatus in which in a state that a powder container body is supported by a container support section, one end of a first leakage preventing member arranged in the surroundings of an inlet of the container support section and the other end of the second leakage preventing member arranged in the surroundings of an outlet of the powder container body contact with each other in an elastically deformed state, and in which in a state that the powder container body has departed from the container support section, at least any one of the one end of the first leakage preventing member and the one end of the second leakage preventing member protrudes outward relative to a position where an opening and closing member and a stop section contact with each other. | 04-26-2012 |
| 20120155914 | CLEANING DEVICE AND IMAGE FORMING APPARATUS PROVIDED WITH THE SAME - A cleaning device of the present invention includes: a housing with an opening that is open toward a photoreceptor drum; a cleaning roller that is contained inside the housing and disposed in contact with the photoreceptor drum; a sealing member for preventing toner leakage, detachably fixed to the housing; a separation claw that separates paper from a surface of the photoreceptor drum; and a positioning member that is integrated with the separation claw, in which the sealing member is positioned and fixed on the housing by the positioning member. | 06-21-2012 |
| 20120163855 | DEVELOPING DEVICE OF IMAGE FORMING APPARATUS - An image forming apparatus having an improved configuration to prevent foreign substances from accumulating on a space maintaining member used to maintain a constant distance between a photoconductor and a developer delivery member. The image forming apparatus includes a photoconductor, a developer delivery member to deliver and feed developer to the photoconductor, a cleaning member to remove the developer and foreign substances remaining on a surface of the photoconductor while coming into contact with the photoconductor, and a space maintaining member arranged to come into contact with the photoconductor so as to maintain a constant developing gap or developing nip between the photoconductor and the developer delivery member. The space maintaining member is located between both ends of the cleaning member. | 06-28-2012 |
| 20120275815 | PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A support member disposed in a photosensitive member unit for supporting a photosensitive drum to be movable between an acting position, at which the photosensitive drum is brought into contact with a process unit, and a non-acting position, at which the photosensitive drum is separated from the process unit or is brought into contact with the process unit with a pressure lower than a pressure with which the photosensitive drum contacts the process unit at the acting position is included, and when the developing unit is located at a development position, the photosensitive drum secures the acting position, and when the developing unit is located at a non-development position, the photosensitive drum secures the non-acting position. | 11-01-2012 |
| 20130016993 | CLEANING DEVICE AND IMAGE FORMING APPARATUSAANM Akamatsu; HiroakiAACI KanagawaAACO JPAAGP Akamatsu; Hiroaki Kanagawa JP - A cleaning device includes a residual-toner accommodation housing having an opening facing toward a post-transfer area of a toner-image bearing member and surrounded by first and second edges and two connecting edges; a residual-toner removing member that overlies the first and connecting edges, has an edge protruding above the opening and abutting on the bearing member, and scrapes off toner from the bearing member toward the housing; a thermoplastic seal member intervening the housing and removing member, having terminal end portions extending along the connecting edges and protruding from the edge, and extending along the first and connecting edges to prevent the toner from leaking through a gap between the housing and removing member; and a sheet-like seal member that covers the second edge, is in contact with the bearing member, and intervenes the bearing member and terminal end portions to prevent the scraped-off toner from leaking from the housing. | 01-17-2013 |
| 20130051840 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - An electrophotographic image forming apparatus for forming an image on a recording material includes an electrophotographic photosensitive member (drum); a developer carrying member; a cleaning blade for cleaning the drum; a developer seal member of a peripheral surface seal type, provided at an end portion of the developer carrying member, for preventing leakage of the developer; and a developer retaining member provided at an end portion of the cleaning blade. With respect to a longitudinal direction of the drum, the developer seal member is disposed in a region where the cleaning blade is provided, an inside end position of the retaining member is located at the same position as or inside an inside end position of the developer seal member, and an outside end position of the retaining member is located at the same position as or outside an outside end position of the developer seal member. | 02-28-2013 |
| 20130071137 | POWDER COLLECTING DEVICE - A powder collecting device for conveying toner, a developer, waste toner and/or a waste developer in a conveyance pipe in one direction and for dropping it into a container through an opening made at an end of the conveyance pipe. The container is mountable in a body of an image forming apparatus such that the end of the conveyance pipe is inserted into the container, and is dismountable therefrom. An elastic sealing member, which has a larger area than a cross-sectional area of the end of the conveyance pipe, is attached to a portion of the container through which the end of the conveyance pipe is inserted into the container. A plurality of cuts are made in the sealing member such that the sealing member has at least an upper flap having a longer elastically deformable portion and a lower flap having a shorter elastically deformable portion. | 03-21-2013 |
| 20130223873 | IMAGE FORMING APPARATUS - An image forming apparatus comprising: an upstream side unit which discharges a conveyed developer from a discharge port; a downstream side unit which receives the developer discharged from the discharge port from a receiving port located at a position opposite to the discharge port; and a sealing member which includes a multiple layer with an elastic member and a sheet material alternately stacked and is nipped between the upstream side unit and the downstream side unit to seal a periphery of the discharge port and the receiving port, wherein at least one of the upstream side unit and the downstream side unit is detachably attachable to an apparatus body. | 08-29-2013 |
| 20130223874 | CLEANING DEVICE, DEVELOPING DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - A cleaning device wherein a cleaner container is provided with an opening, opposing an image bearing drum, for permitting a developer removed from the drum by a cleaning member to enter the container. The cleaning member is fixed at a downstream side of the opening with respect to a rotational moving direction of the drum. The container is provided with a fixing surface for a flexible sheet at an upstream side of the opening with respect to the direction. The sheet is fixed to the fixing surface at an end portion thereof opposite an end portion thereof where the sheet contacts the drum, and at an end portion of the fixing surface with respect to a drum axis direction, the fixing surface protrudes toward a upstream side with respect to a rotational moving direction of the drum beyond a central portion of the fixing surface. | 08-29-2013 |
| 20130251394 | CLEANING DEVICE AND IMAGE FORMING APPARATUS - A cleaning device includes a developer removing member with one long-side edge thereof coming into contact with an image carrier, a supporting member supporting the developer removing member such that the developer removing member extends beyond the supporting member on a side thereof having the one long-side edge, a developer collecting member having an opening for collecting developer residues and configured such that the one long-side edge of the developer removing member is positioned in a short-side central portion of the opening and portions defining one long-side edge and two short-side edges of the opening face a combination of the supporting member and the developer removing member, a sealing member provided between the combination and the portions defining the one long-side edge and the two short-side edges of the opening, and an adhesion preventing member interposed between the sealing member and the developer removing member. | 09-26-2013 |
| 20130287429 | Cleaner Unit for Removing Waste Toner within an Image Forming Device - A device for cleaning a photoconductive member in an image forming device. The device includes a blade extending across the photoconductive member and having an edge that contacts a surface of the photoconductive member to remove toner therefrom. An elongated seal disposed adjacent the blade extends across a length of the blade such that an opening for receiving removed toner is formed between the elongated seal and the blade. The elongated seal includes at least one tab projecting at each longitudinal end thereof and extending between the blade and the photoconductive member so as to prevent a longitudinal end section of the edge of the blade from contacting the surface of the photoconductive member. | 10-31-2013 |
| 20140037323 | CLEANING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - A cleaning device includes a cleaning member having a flexible supporting member for supporting a blade portion having one end to place the blade portion, the other end having a portion to be fixed to the fixing portion, and a bent portion arranged between the one end and the other end, the bent portion being outwardly arranged away from the surface of an image bearing member, the supporting member in which the portion to be fixed, is arranged, with respect to the contact portion, at the downstream side in the movement direction of the image bearing member, and a container formed of a frame for containing a developer. Between the frame and the other end portion, a space allowing the other end portion to elastically deform is provided, and the container is provided with a sealing member configured to prevent intrusion of the developer into the space. | 02-06-2014 |
| 20140037324 | CLEANING APPARATUS, CARTRIDGE, IMAGE FORMING APPARATUS, AND ELASTIC SEAL - A pair of elastic seals disposed at both ends of a cleaning blade of a cleaning apparatus include a back surface contact portion that is in contact with a back surface of the cleaning blade, a drum contact portion that is in contact with a photosensitive drum, and a side end surface facing portion connecting the back surface contact portion to the drum contact portion. Where the distance between one side end surface and another side end surface of the cleaning blade is L0, the distance on a side adjacent to the back surface contact portion, between the side end surface facing portion of one elastic seal and the side end surface facing portion of another elastic seal is L1, and the distance on a side adjacent to the drum contact portion is L2, L1| 02-06-2014 | |
| 20140037325 | APPARATUS AND METHOD FOR PREVENTING AN INFORMATION STORAGE DEVICE FROM FALLING FROM A REMOVABLE DEVICE - An information storage device installed in a removable device configured to be removably installed in an image forming apparatus body, includes: an information storage unit that stores information communicated between the image forming apparatus body and the removable device; a terminal that comes in contact with a body side terminal; and a substrate that holds the information storage unit and the terminal and includes a hole configured to be engaged with a protruding section installed in the image forming apparatus body. The terminal includes a plurality of terminals each including one of a plurality of metallic plates arranged in a transverse direction thereof. An earth terminal, which comes in contact with a body side earth terminal formed in the protruding section, is formed in the hole. The hole is disposed at a position sandwiched between two metallic plates among the plurality of metallic plates. | 02-06-2014 |
| 20140064776 | UNIT AND IMAGE FORMING APPARATUS - A unit for use with an image forming apparatus includes: a frame; a developer accommodating portion; a sheet member, contact to a rotatable member and provided on the frame along a longitudinal direction of the rotatable member; a first end portion seal member for preventing, at a longitudinal end portion, the developer from leaking out from between the frame and the rotatable member; and a second end portion seal member for preventing the developer from leaking out from among the first end portion seal member, the sheet member and the frame. The second end portion seal member is formed by injecting, on the frame, a resin material having an elastic modulus smaller than an elastic modulus of the frame so as to contact with the first end portion seal member and the sheet member. | 03-06-2014 |
| 20140072326 | UNIT, CLEANING UNIT, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - A cleaning unit usable with an image forming apparatus includes a cleaning blade, supported by a frame and including a free end contactable to an image bearing drum, for removing a developer from the drum; a first seal provided between the frame and the blade by injection molding into the frame adjacent to a longitudinal end portion of the blade, the first seal being effective to prevent developer leakage; and a second seal provided between the drum and the frame in contact with the free end of the blade adjacent to the longitudinal end portion, wherein the first seal includes a seal portion contacting the blade, and a seat supporting the second seal, the seat being deformable to move the second seal to urge the second seal to the free end of the blade when the drum is mounted to the frame. | 03-13-2014 |
| 20140086618 | CLEANING UNIT, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - A cleaning unit for an image forming apparatus includes a frame; a cleaning blade; a first seal sealing between the frame and the blade, provided by injection molding into the frame adjacent to an axial end; and a second seal between the frame and the drum, provided opposing to the free end portion adjacent to the axial end portion, and the second seal having a L-like configuration with projection extending in a direction crossing with the axial direction outwardly beyond an end surface of the blade, wherein the first seal includes a base portion provided at a position inside of the end surface and extending in the crossing direction and an extension extending from the base portion in the axial direction, the extension having a free end portion compressed by the projection to seal between the projection and the frame. | 03-27-2014 |
| 20140093270 | PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - A process cartridge for an image forming apparatus includes a photosensitive drum; a cleaning member having a blade contacted to end drum; a sheet contacted to end drum; an end seal provided at an end of a frame and contacted to the drum, end blade and end sheet; and a sealing mold, integrally molded at the end portion of end frame by injection molding, end sealing mold including a first seal provided between end cleaning member and end frame and extending in a direction crossing with the longitudinal direction, a second seal provided between the end seal and end frame and continuously molded with end first seal, and a third seal provided between end sheet and end frame and continuously molded with end second seal. | 04-03-2014 |
| 20140140722 | SEAL AND IMAGE FORMING DEVICE INCLUDING A SEAL - A seal includes a photoreceptor contacting portion to contact a photoreceptor, and a charge roller contacting portion to contact a charge roller. The photoreceptor contacting portion removes toner on the photoreceptor, and the charge roller contacting portion removes the toner on the charge roller, when the seal is mounted along the photoreceptor. | 05-22-2014 |
| 20140147165 | TONER COLLECTION UNIT AND IMAGE FORMING APPARATUSINCORPORATING SAME - A toner collection unit, which can be included in an image forming apparatus, includes a collected toner container having an opening and storing collected toner, a flexible seal sealing the opening of the collected toner container, having a shape of a recess in an initial condition before toner is collected in the container, and being flexible to change the shape to inflate outwardly due to a pressing force exerted from the toner stored in the container, a moving unit disposed outside the flexible seal and movable both in a positive direction to approach the opening of the container and in an opposite direction to move away from the opening when contacting the flexible seal inflating outwardly, a detector detecting movement of the moving unit, and a regulator regulating the moving unit from coming into the recess of the flexible seal in the initial condition. | 05-29-2014 |
| 20140376953 | CLEANING DEVICE, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A cleaning device for a printer includes a cleaning member including a blade and a supporter having first and second surfaces, and a bent portion connecting them, the blade extending in a longitudinal direction at an end of the first surface opposite from the bent portion; and a resin sealing member provided between the cleaning member and the frame, the sealing member including a first portion between the cleaning member and the frame in a region from the blade to the second surface by way of the first surface along the crossing direction at each of one and the other longitudinal ends of the cleaning member, and a second portion sealing between the second surface and the frame in a region between the first portions at the one and the other ends along the longitudinal direction. The second portion is contacted to the second surface with an inclination. | 12-25-2014 |
| 20150098726 | CLEANING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME - A cleaning device includes a housing, a cleaning member, a cleaning blade, a collection member, a seal member, and a protection member. The housing is disposed above an image carrier, and an opening is formed in a face thereof facing the image carrier. The cleaning member rotates contacting a surface of the image carrier and the image carrier contact each other, and thereby, residual toner adhered to the image carrier is removed downstream of the image carrier in the rotation direction of the image carrier. The seal member is disposed at an upstream-side edge of the opening of the housing with respect to the rotation direction of the image carrier, and the seal member prevents leakage of waste toner through a gap between the housing and the image carrier. The protection member is disposed above the seal member with an interval therebetween, and the protection member contacts the cleaning member. | 04-09-2015 |
| 20150139683 | DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - A developing device includes a developer bearing member, a developer regulating member, and a space ensuring member. The space ensuring member includes a maintaining unit configured to maintain the space between the image bearing member and the developer bearing member, a rotation regulating portion configured to prevent the space ensuring member from moving, and a cover portion disposed to be not in contact with a surface of the developer bearing member and configured to cover a part of the developer bearing member. The cover portion is configured to cover at least part of an area in which the developer bearing member faces the image bearing member in a rotational direction of the developer bearing member, the area being on an outer side than an end portion of the developer regulating member in a longitudinal direction of the developer bearing member. | 05-21-2015 |
| 20150331362 | SEALING MEMBER, TONER CONVEYING DEVICE, AND IMAGE FORMING APPARATUS - A sealing member is attached to a second member attached to and detached from a first member having a first opening through which powder passes and having a second opening that communicates with the first opening when the second member is coupled to the first member, and prevents the powder from leaking from a coupling portion between the first opening and the second opening. The sealing member includes: a first elastic member with a first surface arranged on the second member; and a second elastic member arranged on at least a part of a periphery of the first elastic member and having hardness different from that of the first elastic member. | 11-19-2015 |
| 20160062310 | CARTRIDGE AND METHOD FOR MANUFACTURING CARTRIDGE - A cartridge includes a cartridge frame member including a developer accommodation portion, an image bearing member rotatably provided to the cartridge frame member, an end sealing provided to the cartridge frame member and abutting on an end of the image bearing member in a longitudinal direction, a cleaning unit for acting on the image bearing member, a sealing portion integrally provided with the cartridge frame member and abut on an end of the cleaning unit in the longitudinal direction, a sheet member provided along the longitudinal direction and abut on the image bearing member at an end of the sheet member in a direction that crosses the longitudinal direction, and a fixing portion for fixing the sheet member and the cartridge frame member. The sealing portion and the fixing portion are integrally formed with the cartridge frame member. | 03-03-2016 |
| 20160085202 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image carrier, a rotating brush, a collecting roller, a cleaning blade, a sealing member and a side sealing member. The sealing member has an extension part extending outside from each end of the collecting roller in an axial direction. The sealing member comes into contact with the collecting roller between a contact area between the rotating brush and the collecting roller and the cleaning blade and then prevents backflow of the residue. The side sealing member lifts the extension part toward the collecting roller on an outside at a predetermined interval from a position corresponding to each side edge of a maximum-width sheet passing region on the image carrier. | 03-24-2016 |
| 20160147180 | END SEAL WITH INSERT FOR CHAMBERED DOCTOR BLADE ASSEMBLY - An end seal for removable attachment to a doctor blade assembly is provided. The end seal comprises a seal body having a bottom wall, opposite first and second sidewalls and a top edge configured to include a radius adapted to seal against a roller surface. At least one abrasion resistant insert is integrally secured within the seal body. The insert includes a bottom wall, opposite first and second sidewalls and a top edge configured to coincide with the body top edge so as to seal against the roller surface. The seal body and the at least one abrasion resistant insert each further comprise respective first and second upper angled sidewalls extending from respective opposite first and second sidewalls, the respective first upper angled sidewall having a different length and tapering from the top edges at a different angle than the respective second upper angled sidewall. | 05-26-2016 |
| 20160170370 | CLEANING UNIT, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS | 06-16-2016 |
