Patent application number | Description | Published |
20100054804 | CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus includes a developer carrying member for developing an electrostatic latent image formed on an image bearing member, and an electroconductive developer layer thickness regulating member for regulating a layer thickness of a developer deposited on the developer carrying member. A part of the developer layer thickness regulating member is directly contactable to the main assembly electrical contact. | 03-04-2010 |
20110103827 | DEVELOPING DEVICE, DEVELOPING CARTRIDGE, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - A developing device is provided that includes a developing container, a developing roller, a developer supplying roller, a sheet member, a communication hole, and a filter member. The communication hole is provided so as to be connected to an enclosed space defined by an inner wall of the developing container defining a smaller one of spaces provided by dividing the developing container by a plane including a rotation axis of the developer supplying roller and a rotational axis of the developing roller, a phantom plane which is included in the plane and extends from a surface of the developer supplying roller to the inner wall of the developer container, the sheet member, a surface of the developing roller, and a surface of the developer supplying roller. | 05-05-2011 |
20110103834 | DEVELOPMENT CARTRIDGE - A cartridge attachable to and detachable from an image forming apparatus main body includes a rotating member, a supporting member configured to rotatably support the rotating member, a regulating portion configured to abut against an end surface of the rotating member in a rotational axis direction to regulate movement in the rotational axis direction, a hole portion configured to expose a portion of the end surface so as to enable a contact portion provided on the image forming apparatus main body to contact the end surface, a concave portion configured to retain grease, and a wall surface in the concave portion located at a downstream side in a rotation direction and provided such that an area of the wall surface that is farther from the hole portion than an area thereof that is closer to the hole portion is located at the downstream side of the rotation direction. | 05-05-2011 |
20110103835 | DEVELOPING CARTRIDGE - A developing cartridge detachably mountable to a main assembly of an image forming apparatus includes a frame; a developer carrying member, provided on the frame, for carrying a developer for developing an electrostatic image; a first portion to be engaged provided on one side of the frame with respect to a direction crossing an axial direction of the developer carrying member; a second portion to be engaged provided on the other side of the frame with respect to the direction crossing the axial direction of the developer carrying member; and a cover member, including a first engaging portion engaging with the first portion to be engaged and including a second engaging portion engaging with the second portion to be engaged, for covering an exposed portion of the developer carrying member by being detachably mounted to the frame. The cover member is detachably mountable to the frame by engaging the first engaging portion with second portion to be engaged and by engaging the second engaging portion with the first portion to be engaged. | 05-05-2011 |
20120315062 | CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus includes a developer carrying member for developing an electrostatic latent image formed on an image bearing member, and an electroconductive developer layer thickness regulating member for regulating a layer thickness of a developer deposited on the developer carrying member. A part of the developer layer thickness regulating member is directly contactable to the main assembly electrical contact. | 12-13-2012 |
Patent application number | Description | Published |
20130164022 | DEVELOPING CONTAINER, METHOD OF MANUFACTURING THE SAME, DEVELOPING DEVICE USING THE SAME, AND IMAGE FORMING APPARATUS - A developing container configured to contain developer, the developing container including: a filter member which covers a communicating hole through which an inside and an outside of the developing container are communicated with each other; a fixing area where the filter member is fixed to the developing container; and a vibration regulating portion configured to regulate vibrations of the filter member on an inner side of the fixing area, wherein the filter member is configured to allow passage of air and regulate passage of the developer, and wherein the vibration regulating portion is provided so as to be hit by the filter member if the filter member is vibrated, in order to regulate the vibrations of the filter member. | 06-27-2013 |
20130223874 | CLEANING DEVICE, DEVELOPING DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - A cleaning device wherein a cleaner container is provided with an opening, opposing an image bearing drum, for permitting a developer removed from the drum by a cleaning member to enter the container. The cleaning member is fixed at a downstream side of the opening with respect to a rotational moving direction of the drum. The container is provided with a fixing surface for a flexible sheet at an upstream side of the opening with respect to the direction. The sheet is fixed to the fixing surface at an end portion thereof opposite an end portion thereof where the sheet contacts the drum, and at an end portion of the fixing surface with respect to a drum axis direction, the fixing surface protrudes toward a upstream side with respect to a rotational moving direction of the drum beyond a central portion of the fixing surface. | 08-29-2013 |
20140064778 | DEVELOPMENT DEVICE - A development device used for an image forming apparatus includes a frame member, a developer bearing member configured to develop a latent image formed on an image bearing member using developer, and an edge portion sealing member provided between an edge portion in a rotational axis direction of the developer bearing member and the frame member to prevent the developer from leaking to an outside of the development device from between the edge portion and the frame member, and including, in a state of being compressed between the edge portion and the frame member, a layer that includes an aggregate of a plurality of foam cells in which a foam cell communicating with an adjacent cell via a communication hole and a foam cell not communicating with an adjacent cell are mixed in a direction from an inside of the development device to the outside thereof. | 03-06-2014 |
20140064784 | PACKAGED CARTRIDGE, PACKING MATERIAL AND CARTRIDGE - A packaged cartridge detachably mountable to an image forming apparatus includes: (i) a cartridge provided with a grip portion; (ii) a frame portion accommodating the cartridge, the frame portion including an opening and a recessed portion so that the grip portion is exposed through the opening so as to be capable of being gripped; and (iii) a cap portion movable, in a state in which the cartridge is accommodated in the recessed portion, relative to the frame portion between an open position where the opening is open and a closed position where the opening is closed. Such a gap is provided between the cartridge and an inner surface of the frame portion that when the frame portion is moved relative to the cap portion in an opening direction with a cap portion side of the packaged cartridge down, the cartridge interferes the inner surface of the frame portion. | 03-06-2014 |
20140161484 | CARTRIDGE AND METHOD OF MANUFACTURING CARTRIDGE - A method of manufacturing a cartridge including a first member having a flexible engaging portion and a second member having an engaged portion to be engaged with the engaging portion, configured to manufacture a cartridge by a process of engaging the engaging portion of the first member and the engaged portion of the second member; and a process of forming a third member configured to restrict a movement of the flexible engaging portion by letting a fluent material flow in between the first member and the second member and solidifying the fluent material. | 06-12-2014 |