Patent application number | Description | Published |
20130129378 | CARTRIDGE AND UNIT - A cartridge detachably mountable to a main assembly of an image forming apparatus, includes: a rotatable member; a blade member contacted to the rotatable member; a frame, formed of a resin material, for supporting the blade member; and a seal member provided on the frame to be contacted to a portion of the blade member, opposite from a portion where the blade member is contacted to the rotatable member, in each of one end side and anther end side of the blade member with respect to an axial direction of the rotatable member, wherein the seal member is formed on the frame by injection molding for sealing a gap between the blade member and the frame. | 05-23-2013 |
20130164029 | DEVELOPING DEVICE, PROCESS CARTRIDGE AND DRUM UNIT - A developing device for use with an image forming apparatus, includes: a developer carrying member for carrying a developer; a developer regulating member for regulating an amount of the developer carried on the developer carrying member; a first frame for supporting the developer regulating member; a fixing member for fixing the developer regulating member to the first frame; a second frame mounted to the first frame; and a molded resin portion formed by injecting a melted resin material into a space defined by the first and second frames. The molded resin portion is engaged with a first limiting portion provided as a part of the fixing member and projected into the space and is engaged with a second limiting portion provided as a part of the second frame to connect the first and second frame. | 06-27-2013 |
20130177334 | CARTRIDGE - A cartridge detachably mountable to a main assembly of an image forming apparatus includes: a frame; a member-to-be-energized; a fixing member, having electroconductivity, for fixing the member-to-be-energized to the frame, wherein the fixing member is electrically connected with the member-to-be-energized; a recessed portion, provided on the frame, where a part of the fixing member enters; and a molded resin portion formed by injecting a melted electroconductive resin material into the recessed portion, wherein when the cartridge is mounted in the main assembly, the molded resin portion electrically connects the fixing member with an energizing portion provided in the main assembly. | 07-11-2013 |
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 |
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 |
20140119770 | UNIT - A unit includes an injection path provided on a frame member and through which a molten resin flows when a seal portion is formed through injection molding, an injection port provided at one end side of the injection path in an injection direction in which the molten resin flows through the injection path and through which the molten resin is injected into the frame member, and a discharge port which is provided at another end side of the injection path in the injection direction and through which the molten resin having passed through the injection path is discharged to a seal forming portion. | 05-01-2014 |
20140334844 | DEVELOPING DEVICE, PROCESS CARTRIDGE AND DRUM UNIT - A developing device for use with an image forming apparatus, includes: a developer carrying member for carrying a developer; a developer regulating member for regulating an amount of the developer carried on the developer carrying member; a first frame for supporting the developer regulating member; a fixing member for fixing the developer regulating member to the first frame; a second frame mounted to the first frame; and a molded resin portion formed by injecting a melted resin material into a space defined by the first and second frames. The molded resin portion is engaged with a first limiting portion provided as a part of the fixing member and projected into the space and is engaged with a second limiting portion provided as a part of the second frame to connect the first and second frame. | 11-13-2014 |
20150078779 | CARTRIDGE AND UNIT - A cartridge detachably mountable to a main assembly of an image forming apparatus, includes: a rotatable member; a blade member contacted to the rotatable member; a frame, formed of a resin material, for supporting the blade member; and a seal member provided on the frame to be contacted to a portion of the blade member, opposite from a portion where the blade member is contacted to the rotatable member, in each of one end side and anther end side of the blade member with respect to an axial direction of the rotatable member, wherein the seal member is formed on the frame by injection molding for sealing a gap between the blade member and the frame. | 03-19-2015 |