摘要:
A developing device frame unit for supporting a regulating member for regulating a layer thickness of a developer on a developer carrying member, includes a developing device frame having a seal forming portion; one end sealing member which is provided at one longitudinal end of the developing device frame and which is contactable to a surface of the developer carrying member to prevent the developer from leaking in an axial direction of the developer carrying member when the developer carrying member is mounted; the other end sealing member which is provided at the other longitudinal end of the developing device frame and which is contactable to the surface of the developer carrying member to prevent the developer from leaking in an axial direction of the developer carrying member when the developer carrying member is mounted; a blade sealing member for sealing between the regulating member and the developing device frame to prevent the developer from leaking when the regulating member is mounted , wherein the blade sealing member is an elastomer resin material which is injection-molded with a metal mold and which is provided in the seal forming portion where the one end sealing member and the other end sealing member are provided, the blade sealing member connecting the one end sealing member and the other end sealing member with each other; and a protrusion provided by squeezed-out portion of the elastomer resin material, wherein the squeezed-out portion is provided by injecting, into a space defined by the metal mold, the seal forming portion, the one end sealing member and the other end sealing member, a volume of the elastomer resin material larger than a volume of the space.
摘要:
In a method for remanufacturing a cleaning device (11) including an photosensitive drum (7), a cleaning frame unit (12), a cleaning member (11a) configured to clean a surface of the photosensitive drum, and a blade lower sealing member (14) integrally injection molded with the cleaning frame unit and disposed between the cleaning frame unit and the cleaning member, detaching the cleaning member from the cleaning frame unit, cleaning the sealing member, and attaching the cleaning member to the cleaning frame unit, are sequentially performed.
摘要:
A developing device frame unit for supporting a regulating member for regulating a layer thickness of a developer on a developer carrying member, includes a developing device frame having a seal forming portion; two end sealing members which are provided each at one longitudinal end of the developing device frame and which is contactable to a surface of the developer carrying member to prevent the developer from leaking in an axial direction of the developer carrying member when the developer carrying member is mounted; a blade sealing member 1 for sealing between the regulating member and the developing device frame to prevent the developer from leaking when the regulating member is mounted, wherein the blade sealing member is an elastomer resin material which is injection-molded with a metal mold and which is provided in the seal forming portion where the two end sealing members are provided, the blade sealing member connecting the two end sealing members with each other.
摘要:
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.
摘要:
A cartridge detachably mountable to a main assembly of an image forming apparatus includes a cartridge frame formed of a resin material; a plurality of resin members molded on the cartridge frame by injection molding of a resin material different from that of the cartridge frame; a plurality of contact surfaces, provided on the cartridge frame, to which metal molds corresponding to the resin members are to be contacted from the same side when the resin members are molded; and a plurality of resin material inlet ports, provided in an opposite side of said cartridge frame from a side where the contact surfaces are provided. The resin material has been flowed into the cartridge frame when the resin members are molded.
摘要:
A cartridge detachably mountable to an electrophotographic image forming apparatus main body for forming an image on a recording medium, the apparatus main body having: a main body guide; a restraining means movable with respect to the main body guide; and a main body abutting portion, the cartridge including: a frame; a guided portion protruded from the frame so as to be guided by the main body guide, and abutting on the restraining means on the way the cartridge is being mounted in the apparatus main body to be restrained from moving to the downstream side in a mounting direction; and a moving member movable with respect to the frame to abut on the main body abutting portion to be moved to act on the restraining means to move the restraining means to an allowable position in which the guided portion is allowed to move to the downstream side.