摘要:
A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus includes a drum, a developing member developing an latent image formed on the drum, a developing frame having a developer accommodating portion accommodating developer used to develop the latent image and a developer supply opening supplying developer from the accommodating portion to the developing member, a connecting member mounted to the developer frame and having a connecting member opening opposed to the developer supply opening, a drum frame supporting the drum, a developer frame supporting the developing member and having a developer receiving opening receiving developer having passed through the developer supply opening, and a flexible seal having a first opening opposed to the developer supply opening and the connecting member opening, and a second opening opposed to the developer receiving opening. The flexible seal is stuck on the periphery of the first opening.
摘要:
A developer container for containing a developer includes: (a) a first detecting member which is an electrode member having a pair of input-side and output-side electrodes formed in parallel and in one plane at a predetermined interval for detecting capacitance between the electrodes and which has a measurement-side electrode that is in contact with the developer and a reference electrode that is out of contact with the developer; (b) a developer removing member for removing any developer adhering to a detection region of the first detecting member; and (c) a second detecting member formed of a conductive material for detecting capacitance between the second detecting member and a developer bearing member, wherein a main body of an electrophotographic image forming apparatus first detects the developer amount partway from the start of use of the developer container on the basis of detection information from the first detecting member, and then detects the developer amount on the basis of detection information from the second detecting member.
摘要:
A process cartridge detachably mountable to an image forming apparatus includes an image bearing member; process device actable on the image bearing member; a first frame containing the image bearing member and the process device; and a second frame engageable with and disengageable from the first frame and containing a developer container.
摘要:
The present invention provides a process cartridge removably mountable to a main body of an electrophotographic image forming apparatus, the process cartridge including an electrophotographic photosensitive member, a process device that acts on the electrophotographic photosensitive member and has a blade member acting on toner and a support member for supporting the blade member, and a seal member provided for preventing the toner from leaking from a predetermined area. The seal member is formed from liquid-foam material to be solidified as an elastomer, and the seal member is contacted with an edge portion of the support member.
摘要:
A toner accommodation container for containing toner to be used for developing a latent image formed on a electrophotographic photosensitive member, wherein the toner accommodation container is supplied with toner from a toner supply container includes a toner accommodating portion for accommodating the toner; a toner supply opening for supplying toner; a cover member for covering the toner supply opening, wherein the cover member is movable between a closing portion for covering the toner supply opening and an open position for permitting supply of the toner therethrough; a blocking member, provided inside the covering member, for preventing the toner from scattering from the toner accommodating portion to outside, the blocking member is locked by a first locking member and a second locking member; wherein the blocking member is movable to the open position by the first locking member being released by the toner supply container and the second locking member being released by the cover member.
摘要:
A process cartridge detachably mountable to a main assembly of an image forming apparatus includes an image bearing member; processing device actable on the image bearing member; an electroconductive grounding member which is in electric connection with the image bearing member, for grounding the image bearing member to the main assembly when the process cartridge is mounted to the main assembly; and a removing member for removing a material deposited on the image bearing member; the removing member is in contact with a region of the image bearing member contactable to the grounding member.
摘要:
A process cartridge removably mountable in an image forming system, includes an image bearing member, process means acting on the image bearing member, a first member which forms a part of a developer container for containing developer, a second member which forms a part of the developer container for containing the developer, a seal member obtained by solidifying liquid material as an elastomer and disposed on connection surfaces at which the first and second members are joined to each other, and a regulating means provided in the connection surface of the first member to be joined to the second member and adapted to regulate the movement of the liquid material. An image forming system to which such a process cartridge can be removably mounted, and a method for assembling such a process cartridge, also are provided.
摘要:
The present invention provides an image bearing member comprising an image bearing layer capable of bearing an image, a substrate for supporting the image bearing layer, and a weight portion arranged with the substrate asymmetrically with respect to a center of said substrate in a generatrix direction thereof.
摘要:
A process cartridge mountable to an image forming apparatus includes a frame, an image bearing member, a toner carrying member for directing toner to the image bearing member, and a magnet disposed within the toner carrying member. A common positioning member, separate from the frame, contacts each of the image bearing member and the magnet to mutually position the image bearing member and the magnet.
摘要:
A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a developing member for developing an electrostatic latent image formed on an electrophotographic photosensitive drum, a toner accommodation frame having a developer accommodating portion for accommodating a developer to be used by a developing member to develop the electrostatic latent image, a drum frame for supporting the electrophotographic photosensitive drum, a developing frame for supporting the developing member, the developing frame being swingably coupled with the toner accommodation frame, a first end cover connected with the drum frame and the developing frame at one longitudinal end of each of the drum frame and the developing frame, and a second end cover connected with the drum frame and the developing frame at the other longitudinal end of the drum frame and the developing frame.