Patent application number | Description | Published |
20100142997 | TRANSFER DEVICE AND IMAGE FORMING APPARATUS - A transfer device is provided and includes: a rotatable transfer roller; and a controller controls a balance of a pressure contact force exerted on the transfer roller in the axial direction, the controller including: a bearing member; a movable holding section that holds the bearing member; and a stationary holding section that holds the movable holding section. The movable holding section and the stationary holding section oppose each other by way of opposed surfaces, an adjustment unit is inserted into one of the opposed surfaces, and the movable holding section and the stationary holding section are arranged in such a manner that an extremity of the adjustment unit contacts the other of the opposed surfaces. | 06-10-2010 |
20100150588 | PRIMARY TRANSFER DEVICE AND IMAGE FORMING APPARATUS HAVING THE SAME - A primary transfer device includes a primary transfer roll that is capable of being engaged with and disengaged from an intermediate transfer member to which a developer image is primarily transferred; and a setting-changing unit that changes a setting of pressure of the primary transfer roll to the intermediate transfer member in accordance with kind of a recording medium to which the developer image is secondarily transferred, wherein the setting-changing unit has an irregular medium transfer mode for a case where the recording medium to which the developer image is a recording medium having irregularities formed on a surface thereof, and an ordinary transfer mode for a case where the recording medium is a recording medium other than the recording medium having the irregularities, wherein a pressure set in the irregular medium transfer mode is smaller than that set in the ordinary transfer mode. | 06-17-2010 |
20100150607 | INTERMEDIATE TRANSFER UNIT AND IMAGE FORMING APPARATUS INCLUDING THE SAME - An intermediate transfer unit includes an intermediate transfer belt that is configured to be rotated; a belt support that supports the intermediate transfer belt; a housing that receives the belt support on which the intermediate transfer belt is mounted; and a belt protecting member that is provided on the belt support and is urged by elastic member so as to cover edge of the intermediate transfer belt in a width direction thereof, wherein the belt support is formed to be swingable with respect to the housing, end of the belt protecting members is positioned so as to cover the edge of the intermediate transfer belt in the width direction while the belt support is received in the housing, and the end of the belt protecting member is withdrawn to an outside of the belt support while the belt support is swung with respect to the housing. | 06-17-2010 |
20100247129 | IMAGE FORMING APPARATUS - An image forming apparatus includes: an image forming section that forms a plurality of images including an image of a low-gloss toner lower in glossiness than any other color toner and an image of a transparent toner; an intermediate transferer to which the plurality of images formed by the image forming section are transferred; and a control section that controls a position for forming the image of the transparent toner, so as to prevent the image of the transparent toner from being transferred under the image of the low-gloss toner on the intermediate transferer. | 09-30-2010 |
20100247144 | INTERMEDIATE TRANSFER DEVICE, TRANSFER DEVICE AND IMAGE FORMING APPARATUS - An intermediate transfer device includes an endless-belt-form intermediate transfer material; a first moving that is movable between a first position- | 09-30-2010 |
20100284708 | INTERMEDIATE TRANSFER UNIT, TRANSFER DEVICE AND IMAGE FORMING APPARATUS - An intermediate transfer unit includes first to third movement controllers. When a first image carrier is used, the first movement controller moves a first moving member to a first position. When the first image carrier is not used, the first movement controller moves the first moving member to a second position. When second image carriers are used, the third movement controller moves a third moving member to a fifth position. When the second image carriers are not used, the third movement controller moves the third moving member to a sixth position. When any of the first and second image carriers is used, the second movement controller moves a second moving member to a third position. When the first and second image carriers are not used, the second movement controller moves the second moving member to a fourth position. | 11-11-2010 |
20110236046 | IMAGE FORMING APPARATUS - There is provided an image forming apparatus including: a transfer-receiving member onto which developer images are transferred and superimposed in sequence by switching over plural developing units that develop latent images on a latent image holding body with a developer to form developer images; a primary transfer section that primary transfers the developer image on the latent image holding body onto the transfer-receiving member; a secondary transfer section that secondary transfers the developer image on the transfer-receiving member onto a recording medium; and a selection section that selects a combination of a first process speed for the primary transfer and a second process speed for the secondary transfer according to the number of developing units employed. | 09-29-2011 |
20110236053 | DEVELOPER RECOVERY DEVICE AND IMAGE FORMING DEVICE - There is provided a developer recovery device including: a casing; a recovery member disposed along an edge portion of the aperture portion; a sealing member disposed along an edge portion at a conveyance direction upstream side of the aperture portion; a moving section that moves the recovery member and the sealing member between a position of being touched against the developer-bearing member and a position of being apart from the developer-bearing member; a suction section that sucks the developer separated from the developer-bearing member into the casing; and a filter that is long in the length direction of the aperture portion and that is disposed in the casing between the aperture portion and the suction section with an inclination such that a lower portion of the filter is further away from the aperture portion than an upper portion of the filter. | 09-29-2011 |
20120107013 | DEVELOPER COLLECTING DEVICE AND IMAGE FORMING APPARATUS - A developer collecting device includes a housing in which an opening disposed opposite to a developer holding member is formed, a collection member that is disposed to be capable of coming in contact with and being separated from the developer holding member and that detaches the developer and collects the detached developer in the housing, a sealing member that is disposed to be capable of coming in contact with and being separated from the developer holding member and that seals up a gap between the developer holding member and the housing, a suction passage to which a suction unit suctioning the developer into the housing is connected, a developer transport unit that transports the developer to one end of the housing, and a filtration member that is tilted so that at least an upper part thereof overlaps with the upside of the developer transport unit in a plain view. | 05-03-2012 |
20120114366 | DEVELOPER COLLECTING DEVICE AND IMAGE FORMING APPARATUS - A developer collecting device includes a housing provided with an opening opposed to a developer carrying member; a collecting member provided along an edge of the opening at a downstream end thereof in a transporting direction of the developer carrying member, the collecting member removing developer from the developer carrying member and collecting the developer into the housing when the collecting member is in contact with the developing carrying member; a suction unit that sucks air from the opening; a flow rate regulating member provided in a suction path between the suction unit and the housing, the flow rate regulating member changing a flow rate of the air; and an operation device that moves the collecting member and operates the flow rate regulating member such that the flow rate regulating member raises the flow rate before the separation of the collecting member from the developer carrying member. | 05-10-2012 |
20120114367 | DEVELOPER COLLECTING DEVICE AND IMAGE FORMING APPARATUS - A developer collecting device includes a housing provided with an opening opposed to a developer carrying member, a collecting member provided along an edge of the opening at a downstream end of the opening in a transporting direction in which the developer carrying member transports the developer, a sealing member provided along an edge of the opening at an upstream end of the opening in the transporting direction, a suction path that extends along a longitudinal direction of the housing and that is connected to a suction unit for sucking the developer into the housing, a developer transporting unit that is provided between the opening and the suction path and that transports the developer collected in the housing, a filter member disposed between the developer transporting unit and the suction path, and a hood member disposed between the opening and the filter member and separated from the filter member. | 05-10-2012 |
20120114369 | IMAGE FORMING APPARATUS - An image forming apparatus includes a transfer member that retains developer; a housing provided with a removing member that removes the developer and having an intake opening that is opposed to the transfer member, the developer removed by the removing member being taken into the housing through the intake opening; a guiding pipe connected to the housing and having a suction hole through which the developer is sucked and an outlet through which the developer is discharged; and a suction member that applies a suction force to an inner space of the housing through the guiding pipe. A capturing area for capturing the developer that flows through a flow channel from the suction hole to the outlet is provided in the flow channel. A cross section of the capturing area in a radial direction of the flow channel is larger than that of other areas. | 05-10-2012 |
20120114370 | DEVELOPER COLLECTING DEVICE AND IMAGE FORMING APPARATUS - A developer collecting device includes a housing provided with an opening opposed to a developer carrying member, a collecting member provided on a support member and capable of coming into contact with and separating from the developer carrying member, a suction path provided between the opening and a suction member for sucking developer removed from the developer carrying member, an opening-closing plate that opens or closes the suction path, an urging member that urges the opening-closing plate, a retaining member that retains the opening-closing plate, and an opening-closing unit including a rotating member and an elastic member whose ends are connected to the rotating member and the support member. The elastic member is pulled so as to rotate the rotating member in association with a movement of the collecting member, thereby rotating the opening-closing plate so as to open or close the suction path. | 05-10-2012 |
20120114399 | IMAGE FORMING APPARATUS AND CHARGE ELIMINATING DEVICE - An image forming apparatus includes a toner image forming unit that forms a toner image, a transfer unit that transfers the toner image onto a recording material, a fixing unit that fixes the toner image to the recording material, a transport unit that includes a rotary member that transports the recording material from the transfer unit to the fixing unit and a recording material guiding portion that has first protruding portions extending along a recording material transport direction, and a charge eliminating unit that is disposed between the transfer unit and transport unit and eliminates charge on the recording material. The charge eliminating unit includes a first charge eliminating portion having pointed projections, and a second charge eliminating portion that is disposed on a downstream side of the first charge eliminating portion in the recording material transport direction and is disposed to be out of contact with the recording material. | 05-10-2012 |
20120199443 | REMOVABLE UNIT AND IMAGE FORMING APPARATUS - A removable unit includes an endless belt-like member; a first contact member that contacts an inner surface of the belt-like member; a second contact member disposed upwardly of the first contact member in a direction of gravitational force when the removable unit is mounted to a body of an image forming apparatus; a first cleaning member disposed between the first contact member and the second contact member; and a second cleaning member disposed between the first cleaning member and the second contact member. The first cleaning member prevents an adherent cleaned off by the second cleaning member from moving downward in the direction of gravitational force along an inner peripheral surface of the belt-like member. | 08-09-2012 |