Class / Patent application number | Description | Number of patent applications / Date published |
399269000 | Plural | 41 |
20080226353 | APPARATUS AND METHODS FOR LOADING A DONOR ROLL UTILIZING A SLOW SPEED TRIM ROLL - An apparatus for loading one or more donor rolls of a developer unit, comprising a developer housing having a reservoir for a developer material, a rotatable first donor roll that delivers the toner onto a moving photoconductive member, a trim roll that receives developer material from the reservoir and delivers the developer material to a first magnetic brush roller that delivers toner to the first donor roll, and a rotatable second magnetic brush roll that receives the developer material from the first magnetic brush roll and delivers the toner to the first donor roll. The apparatus may further comprise a rotatable second donor roll that receives the toner from the second magnetic brush roll and delivers the toner onto the photoconductive member, and a rotatable third magnetic brush roll that receives the developer material from the second magnetic brush roll and delivers the toner to the second donor roll. The apparatus may further comprise a trim blade for trimming excess developer material from the trim roll. | 09-18-2008 |
20080226354 | APPARATUS AND METHODS FOR LOADING A DONOR ROLL - An apparatus for loading one or more donor rolls of a developer unit, comprising a developer housing having a reservoir for a developer material, a rotatable first donor roll that delivers the toner onto a moving photoconductive member, a rotatable first magnetic brush roll that receives the developer material from the reservoir and delivers the toner to the first donor roll, and a rotatable second magnetic brush roll that receives the developer material from the first magnetic brush roll and delivers the toner to the first donor roll. The apparatus may further comprise a rotatable second donor roll that receives the toner from the second magnetic brush roll and delivers the toner onto the photoconductive member, and a rotatable third magnetic brush roll that receives the developer material from the second magnetic brush roll and delivers the toner to the second donor roll. | 09-18-2008 |
20100061773 | DEVELOPING APPARATUS - A developing apparatus in which a first magnet of a first developing sleeve includes a first magnetic pole near a potion opposing to an image bearing member, and a second magnetic pole being downstream of the first magnetic pole; and a second magnet of a second developing sleeve includes a third magnetic pole near a portion opposing to the first sleeve. Assuming that a magnetic force obtained by combining normal direction forces Fr | 03-11-2010 |
20110069998 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device includes: a developing housing in which a developer is to be contained; a first developer carrier that is placed opposedly to an image carrier which is rotated while a latent image is formed on a surface of the image carrier, that is supported by the developing housing, and that is rotated while holding the developer on a surface of the first developer carrier; a second developer carrier that is supported movably with respect to the developing housing, that is opposed to the image carrier on an upstream or downstream side of the first developer carrier in a rotation direction of the image carrier, and that is rotated while holding the developer on a surface of the second developer carrier; and a coupling defined herein. | 03-24-2011 |
20110091248 | IMAGE FORMING APPARATUS - An image forming apparatus provided with a hybrid development apparatus having a plurality of toner carriers, the image forming apparatus having the following constitution: a magnet roller incorporated in a developer carrier is rotated and adjusted and fixed at an appropriate magnetic pole position with respect to one toner carrier; the other toner carrier is moved around the magnet roller shaft having a certain gap therebetween and adjusted and fixed at an appropriate magnetic pole position; and gap members are provided on each toner carrier, and the gap members are brought into contact with an image carrier by a guide member and an bias member provided on the image forming apparatus, thereby maintaining a specific development gap. | 04-21-2011 |
20110097116 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - Provided is a developing device employing a two-component developer where a good image can be obtained by preventing the influence of scratching caused by a magnetic brush. A developing device comprises a first develop roller ( | 04-28-2011 |
20110123233 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - A developing device in an image forming apparatus includes: a first developer carrier that rotates in a same direction as a rotating direction of an image carrier of the image forming apparatus so as to supply developer to the image carrier; and a second developer carrier that rotates in a direction opposite to the rotating direction of the image carrier so as to supply the developer to the image carrier. The developing device simultaneously performs a refreshing operation of performing replacement of the developer and a filming removal operation of causing the image carrier to rotate idle while forming an image for use in the refreshing operation and causing the first and second developer carriers to rotate in their respective rotating directions. | 05-26-2011 |
20110206419 | DEVELOPING DEVICE - A developing device includes a first developer carrying member for forming a toner image on an image bearing member; a second developer carrying member for forming the toner image on the image bearing member; a supporting member for rotatably supporting the first developer carrying member; a swingable member for swinging the second developer carrying member about the first developer carrying member; an urging portion for urging the second developer carrying member toward the image bearing member; and a buffering portion, provided so as to press-contact the swingable member, for damping vibration of the swingable member. | 08-25-2011 |
20110222918 | DEVELOPING DEVICE, ASSEMBLY BODY, AND IMAGE FORMING APPARATUS - A developing device includes: a first-developer-holding-member facing a surface of a rotating latent image carrier, it rotating such that a moving direction thereof is opposite to that of the carrier at a portion where they face; a second-developer-holding-member provided at a downstream-side of the first-developer-holding-member in a direction in which the carrier rotates, and facing the surface of the carrier, it rotating such that a moving direction thereof is the same as that of the carrier at a portion where they face; a ratio of circumferential speeds of the first-developer-holding-member and the second-developer-holding-member being variable; a splitting member that splits a developer for the first-developer-holding-member and the second-developer-holding-member by hitting against the developer located between the first-developer-holding-member and the second-developer-holding-member; a moving unit that moves the splitting member; and a control unit that controls the moving unit to move the splitting member to vary split ratio of the developer. | 09-15-2011 |
20110229214 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device includes: a first developer holding body with a first cylinder member disposed facing the outer peripheral surface of a rotating latent image holding body, and a first magnet disposed at the inside of the first cylinder member; a second developer holding body with a second cylinder member disposed facing the outer peripheral surface of the latent image holding body, further downstream in the latent image holding body rotation direction than the first developer holding body, and a second magnet disposed at the inside of the second cylinder member; and an adjustment mechanism that adjusts the relative position of the first magnet to the second magnet in a circumferential direction. | 09-22-2011 |
20110229215 | DEVELOPING DEVICE, ASSEMBLY, AND IMAGE FORMING APPARATUS - A developing device includes a first developing member that rotates in a manner such that a moving direction of a portion opposing the image carrier is opposite a moving direction of the image carrier, a second developing member provided on a downstream side of the first developing member in a rotating direction of the image carrier and rotates in a manner such that a moving direction of a portion opposing the image carrier is the same as the moving direction of the image carrier, a distributing member supported movably relative to a proximal portion where the first developing member is closest to the second developing member so as to distribute developer to the first and second developing members by contact with the developer, and an a biasing member that biases the distributing member upstream in the rotating direction of the first developing member. | 09-22-2011 |
20110274470 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image forming unit for rotatably supporting an image bearing member; a developing unit including a first developer carrying member for developing an electrostatic latent image formed on the image baring member and a second developer carrying member for developing the electrostatic latent image formed on the image bearing member; a first gap regulating member for regulating a gap between the image bearing member and the first developer carrying member; a second gap regulating member for regulating a gap between the image bearing member and the second developer carrying member; an urging member for urging the developing unit toward the image forming unit so that the first gap regulating member and the second gap regulating member are urged against an abutment portion provided on the image bearing member; and a positioning member for positioning the developing unit relative to the image forming unit. The positioning member includes a preventing portion for preventing, while permitting movement of the developing unit in a circumferential direction of the image bearing member at one longitudinal end of the developing unit, movement of the developing unit in the circumferential direction of the image bearing member at the other longitudinal end of the developing unit. | 11-10-2011 |
20110299892 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device, includes a developer agitating member, an upstream side developing miler, and a downstream side developing roller; wherein the toner in the developer handed over from the upstream side developing roller to the downstream side developing roller has a volume average particle size larger than a volume average particle size of the toner in the developer conveyed by the upstream side developing roller to the facing position between the upstream side developing roller and the photoreceptor. | 12-08-2011 |
20120134722 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device having: a plurality of toner support members for supporting toner on their peripheral surfaces, the plurality of toner support members being arranged in a direction of rotation of an image support member out of contact with the image support member; and a developer support member for supporting a developer containing toner and carriers and supplying the toner to the plurality of toner support members; wherein the plurality of toner support members have dielectric layers on their surfaces, the dielectric layers satisfying a condition d1/∈1>d2/∈2; and wherein the first toner support member and the second toner support member are connected to a single power source. | 05-31-2012 |
20120148313 | IMAGE FORMING APPARATUS - The specification discloses a developing device comprises a first developer bearing member configured to bear a developer including a toner and a carrier, and to convey the developer to a first developing region facing an image bearing member, so as to develop an electrostatic latent image formed onto the image bearing member and a second developer bearing member configured to bear a developer transferred from the first developer bearing member, and to develop an electrostatic latent image formed on the image bearing member, by conveying a developer to a second developing region facing the image bearing member and a cover unit configured to shield a route toward the image bearing member from a mutual gap position between the first developer bearing member and the second developer bearing member. | 06-14-2012 |
20120195647 | 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 plurality of developer carrying members, the developer carrying member requiring a largest driving torque resulting from the developer has a surface which has a plurality of grooves extending in parallel in a direction having a component of an axial direction of the developer carrying member at a predetermined interval, and wherein another developer carrying member has a blasted surface. | 08-02-2012 |
20120213557 | DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND DEVELOPING METHOD - A developing device includes: a first developer carrier that is moved in a same direction as a moving direction of a latent image carrier at a faster linear speed than the latent image carrier; a second developer carrier that further develops the obtained toner image and that is moved in a same direction at a faster linear speed than the latent image carrier; and a bias output unit that outputs a developing bias to be applied to the second developer carrier. The developing bias includes a direct-current component and a non-rectangular alternating-current component whose waveform has a gentle edge at which a direction of an electric field between the second developer carrier and a background portion of the latent image carrier is changed to a direction in which the toner is moved from the background portion toward the second developer carrier. | 08-23-2012 |
20130136506 | 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 surface provided with grooves and feeds a developer carried thereon to a first developing region which is an opposing portion where the first developer carrying member opposes the image bearing member. The second developer carrying member carries the developer delivered from the first developer carrying member and feeds the developer to a second developing region which is an opposing portion where the second developer carrying member opposes the image bearing member. The second developer carrying member has a surface provided with grooves different in angle from those of the surface of the first developer carrying member. | 05-30-2013 |
20130164042 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A developing device includes first and second developer carriers facing each other in a facing region, a regulating member that regulates a layer thickness of developer, and a separation member. The first and second developer carriers respectively include first and second magnetic members that are respectively magnetized with first and second facing magnetic poles having opposite polarities. The separation member separates the developer so that the developer is supplied toward the first and second developer carriers. The separation member is disposed such that distances between the separation member and the first and second developer carriers are the smallest in a region in which a magnitude of a combined magnetic field of the first and second magnetic poles locally decreases as compared with a case where at least one of the first and second developer carriers is independently disposed due to interaction between the first and second facing magnetic poles. | 06-27-2013 |
20130164043 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device includes a first developing roller including a first transport member that transports magnetic developer by rotating while being close to a latent-image carrier rotating in one direction and a first magnet member, a second developing roller including a second transport member that transports the developer by rotating while being close to the latent-image carrier at a position on a downstream side of the first developing roller in the one direction, and a second magnet member, and a regulation member that regulates transport amounts of the developer distributed to the first and second developing rollers to required transport amounts, and opposes the developing rollers with predetermined distances therebetween. The first and second developing rollers are spaced from each other. The regulation member is movably supported in an area closer to the latent-image carrier than a closest position between the first and second developing rollers. | 06-27-2013 |
20130195512 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device includes a container; a cylindrical first developer-transporting member rotatably supported by the container and whose rotation axis is substantially parallel with a rotation axis of a subjected-to-development member; a first magnet disposed inside the first developer-transporting member and secured to the container; a swinging member supported so as to be capable of swinging relative to the container around the rotation axis of the first developer-transporting member; a cylindrical second developer-transporting member at least one end portion of which is rotatably supported by the swinging member, the second developer-transporting member being adjacent to the first developer-transporting member and rotating in the circumferential direction to transport the developer to the subjected-to-development member; and a second magnet disposed inside the second developer-transporting member and secured to the swinging member. | 08-01-2013 |
20130195513 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device includes a first developer transporting member, a first magnet member, a second developer transporting member, a second magnet member, and a passage regulating member. Among magnetic poles of the first magnet member and magnetic poles of the second magnet member, the magnetic poles having different magnetic properties that are disposed closest to each other and that oppose each other are disposed in an area that is opposite an area at whose side a latent image carrying member exists with a virtual straight line being a boundary thereof, the virtual straight connecting a center position of the first magnet member corresponding to a center of rotation of the first developer transporting member and a center position of the second magnet member corresponding to a center of rotation of the second developer transporting member with each other. | 08-01-2013 |
20130195514 | IMAGE FORMING APPARATUS - An image forming apparatus includes a housing, a latent image carrier, and a developing device. The developing device includes a container, a supporter, first and second developer-transporting members, first and second magnets, a pair of first urging members, and a pair of second urging members. The pair of first urging members presses the container toward the latent image carrier while being interposed between the supporter and the container. The first urging members serve as two vertexes of a first triangle surrounding the center of gravity of part of the developing device excluding the supporter. The pair of second urging members presses the container toward the latent image carrier while being interposed between the supporter and the container. The second urging members serve as two vertexes of a second triangle surrounding the center of gravity of part of the developing device excluding the supporter. | 08-01-2013 |
20130195515 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS USING THE SAME - A developing device includes a first developing unit, a second developing unit, a rotating member, a magnetic pole forming member, a first separating pole, a second separating pole, a developer supplying unit, and a path formation member. The developing device is provided with a magnetic structure, in which, when a value of a magnetic flux density at which the developer is separated is a reference separation value, at a side of the first separating pole at the separation area of the second developing unit, a position where a magnetic flux density of a vertical component of a magnetic force becomes less than or equal to the reference separation value is disposed downstream in the direction of rotation of the rotating member of a position where a magnetic flux density of a horizontal component of the magnetic force becomes less than or equal to the reference separation value. | 08-01-2013 |
20130202330 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device includes first and second developing members facing an image bearing member and respectively having substantially-cylindrical first and second sleeves rotationally driven in a circumferential direction and first and second magnet rollers fixedly supported within the first and second sleeves and provided with magnetic poles in the circumferential direction; a supply member supplying a two-component developer onto the first sleeve; a layer regulating member facing the first sleeve and regulating a layer of the two-component developer thereon; and a magnetic member facing the second sleeve with a certain distance therebetween at a position facing a magnetic pole provided downstream of a development pole and upstream of a removal pole, which are included in the magnetic poles of the second magnet roller, in a rotational direction of the second sleeve. The development pole faces the image bearing member. The removal pole removes the two-component developer from the second sleeve. | 08-08-2013 |
20130236215 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device includes a housing accommodating a developer containing a toner and a magnetic carrier; first and second developing members facing an image bearing member and having substantially-cylindrical first and second rotatable sleeves and first and second magnet rollers supported therein and having magnetic poles; a supply member supplying the developer onto the first sleeve; a layer regulating member facing the first sleeve and regulating a layer of the developer; and an electrode member facing the second sleeve with a distance therebetween and disposed upstream, in the second-sleeve rotational direction, of where the second sleeve receives the developer from the first sleeve and downstream of where the second developing member faces the image bearing member. An electric field removing the toner from the second sleeve or causing the toner on the carrier to adhere onto the second sleeve is generated between the electrode member and the second sleeve. | 09-12-2013 |
20130243493 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device includes a first developer carrier that carries developer on a peripheral surface thereof; a second developer carrier that carries the developer on a peripheral surface thereof; a supplying section that supplies the developer to the peripheral surface of the first developer carrier; a layer thickness regulating member that regulates a layer thickness of the developer supplied to the peripheral surface of the first developer carrier by the supplying section; a first transfer magnetic pole disposed in an interior of the first developer carrier; a second transfer magnetic pole disposed in an interior of the second developer carrier; a first downstream magnetic pole disposed in the interior of the first developer carrier; and a second downstream magnetic pole disposed in the interior of the second developer carrier. | 09-19-2013 |
20130251413 | IMAGE FORMING APPARATUS - An image forming apparatus includes a rotatable photoconductor and a developing device that uses a developer that exhibits magnetism, the developing device including a housing having an opening for development at a position facing the photoconductor, and plural developing rollers that are exposed through the opening in the housing, that rotate without contacting a surface of the photoconductor, and that are arranged without contacting each other in a direction in which the surface of the photoconductor rotates, wherein a minimum distance between an inner surface portion extending to the opening of the housing of the developing device and one of the developing rollers arranged close to the inner surface portion and a minimum distance between the housing and the surface of the photoconductor are each equal to or larger than a minimum distance between the developing rollers. | 09-26-2013 |
20130251414 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device includes first and second magnet members respectively including first and second transfer magnetic poles that have different polarities, that generate a magnetic force for transferring a developer from a first developer-transporting member to a second developer-transporting member, and that are located at positions where the developer-transporting members come close to each other, wherein (B | 09-26-2013 |
20130302068 | Developing Device, Assembly, and Image Forming Apparatus - A developing device includes a first developing member that rotates in a manner such that a moving direction of a portion opposing the image carrier is opposite a moving direction of the image carrier, a second developing member provided on a downstream side of the first developing member in a rotating direction of the image carrier and rotates in a manner such that a moving direction of a portion opposing the image carrier is the same as the moving direction of the image carrier, a distributing member supported movably relative to a proximal portion where the first developing member is closest to the second developing member so as to distribute developer to the first and second developing members by contact with the developer, and an a biasing member that biases the distributing member upstream in the rotating direction of the first developing member. | 11-14-2013 |
20130315635 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device includes a first developing roller, a second developing roller, a layer regulation member, a pair of division magnetic poles that divide a developer which is held by the second developing roller after passing through the layer regulation member and transfer the developer to the first developing roller, and a transfer amount regulation member that has a plate shape, is provided in a developer transfer path formed by the pair of division magnetic poles between the first developing roller and the second developing roller so as to extend in an axial direction of the first and second developing rollers, and is provided with a slit which regulates the amount of developer passing therethrough. | 11-28-2013 |
20130330107 | DEVELOPMENT APPARATUS AND IMAGE FORMING APPARATUS - A development apparatus is equipped with a first developing roller, developer supply section, a second developing roller, a developer removing part and a developer recovery section. The second developing roller is disposed on the downstream side of the first developing roller and above the first developing roller, to which the developer is delivered from the first developing roller by magnetic force. The developer supply section includes a developer circulation section and a first regulating member that regulates an amount of the developer. The developer recovered by the developer recovery section drops by gravity and is introduced into the developer circulation section. | 12-12-2013 |
20140016969 | DEVELOPING DEVICE AND IMAGE FORMING DEVICE - Provided is a developing device including a first developer holding member disposed opposite to an image holding member that holds an electrostatic latent image, a second developer holding member, disposed opposite to the image holding member and the first developer holding member, a developer supply mechanism that supplies the developer to a position located further downstream than the development area in a direction of rotation of the developer holding member and located further upstream than opposite locations of the two developer holding members, a regulation member that regulates the developer supplied by the developer supply mechanism, a developer division unit that divides the developer, supplied from the developer supply mechanism into two parts for the two developer holding members, and a developer carrying unit that holds and carries the developer after division toward each of the development areas in a state where the developer is separated. | 01-16-2014 |
20140023408 | 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 circumferential surface of a rotatable latent image holding member, transports a developer onto an outer circumferential surface thereof while holding the developer by magnetic force, and has a substantially cylindrical shape, and a second developing roller that is disposed to be rotatable with desired distances set between the second developing roller and the respective outer circumferential surfaces of the corresponding latent image holding member and the corresponding first developing roller at a position on the downstream side of the first developing roller in a rotation direction of the latent image holding member, transports the developer onto an outer circumferential surface thereof while holding the developer by magnetic force, and has a substantially cylindrical shape. | 01-23-2014 |
20140023409 | DEVELOPING DEVICE, IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - Provided is a developing device including a pair of developer holding members that include a pair of cylinder members, which are disposed close to each other and rotate in the same direction at an adjacent gap at which both cylinder members are in close proximity, and a pair of magnetic force generation sections which are provided inside the pair of cylinder members respectively and generate magnetic forces for holding a developer on the cylinder members, and a pair of developing magnetic poles that are provided in the pair of magnetic force generation sections respectively, are disposed to be opposed to a latent image holding member, and are set to have the same polarity. | 01-23-2014 |
20140140739 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device includes a first developer holder and a second developer holder. The first developer holder is disposed so as to face an image holding member and rotates so as to move in a direction opposite to a direction of movement of the image holding member at a first facing portion. The second developer holder is disposed downstream from the first developer holder in the direction of movement of the image holding member so as to face the image holding member and rotates so as to move in the same direction as the image holding member moves at a second facing portion. A value obtained by dividing an amount of developer per unit area held on the first developer holder by a shortest distance between the image holding member and the first developer holder is approximately in a range from 1.00×10 | 05-22-2014 |
20140147176 | DEVELOPING DEVICE - An inclined angle that an upstream surface of each groove in an upstream developing sleeve forms with the surface of the upstream developing sleeve is set smaller than an inclined angle that an upstream surface of each groove in a downstream developing sleeve forms with the surface of the downstream developing sleeve. This configuration increases a difference in transfer power between the upstream and downstream developing sleeves, thereby enabling the upstream developing sleeve to transfer a developer to the downstream developing sleeve efficiently. | 05-29-2014 |
20140178106 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device includes first and second developing rollers, a trimmer, a divider, and a movement regulator. The first and second developing rollers are arranged so as to face an outer peripheral surface of a photoconductor at downstream and upstream positions, respectively, in a rotation direction of the photoconductor, and respectively include first and second sleeves and first and second magnets. The trimmer is arranged so as to face an outer peripheral surface of the first developing roller, and regulates formation of a layer of developer held by the first developing roller. The divider divides the developer regulated by the trimmer into developer that adheres to the first developing roller and developer that adheres to the second developing roller. The movement regulator is disposed between the trimmer and the divider and regulates movement of the developer held by the first developing roller before the developer is divided. | 06-26-2014 |
20150125186 | DEVELOPING APPARATUS - A developing apparatus includes a developing container for containing a developer; a rotatable developer carrying member provided at the position of the developing container opposed to an image bearing member and configured to carry the developer into a developing zone where the developer carrying member is opposed to the image bearing member; and a guiding portion provided opposed to a carrying region, with respect to an axial direction of the developer carrying member, where the developer carrying member carries the developer, in a side of the developing container remote from the image bearing member, the guiding portion being capable of guiding the developer from an end portion of the developer carrying member with rotation of the developer carrying member. | 05-07-2015 |
20160103402 | DEVELOPING DEVICE, IMAGE FORMING APPARATUS - In a developing device, a developing coating layer of each of a plurality of developing rollers has been formed by a dipping method in which a developing base body is dipped in a liquid in a state where the developing base body is in a vertical attitude such that a first end of the developing base body faces down and a second end of the developing base body faces up. The plurality of developing rollers are arranged from an upstream side to a downstream side in a rotation direction of an image-carrying member in such a manner that directions faced by the first end and the second end of each of the plurality of developing rollers are alternately reversed. | 04-14-2016 |
20160202630 | DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS INCLUDING SAME | 07-14-2016 |