Patent application number | Description | Published |
20090080935 | Protection cover, and process cartridge and image forming apparatus using the same - A protection cover includes a cover base that covers and protects an external exposure portion of a photosensitive member and that comes into contact with an image forming apparatus housing body to movably guide a process cartridge; an extrusion member that is disposed in the cover base on a side opposite to an insertion direction of the process cartridge to the image forming apparatus housing body and that moves in the insertion direction of the process cartridge to extrude the process cartridge from the cover base; and a restriction portion that is disposed in the extrusion member to restrict the process cartridge in the cover base in a state where the process cartridge is located in the cover base and to release the process cartridge from the cover base in a state where the process cartridge is inserted and mounted to the image forming apparatus housing body. | 03-26-2009 |
20090154972 | COLLECTED DEVELOPER CONVEYING DEVICE AND IMAGE FORMING APPARATUS - A collected developer conveying device includes: a conveying passage through which collected developer is conveyed; a conveying member that is disposed in the conveying passage, and conveys the developer in the conveying passage by rotation thereof; a developer carrying body that holds developer on a surface thereof, and that is relatable; and a ventilation passage through which air passes from a developing container including the developer carrying body, wherein the conveying passage includes an air flow region formed in a part thereof upper than a rotational center of the conveying member in a gravitational direction, in a side of the conveying passage in which the conveying member rotates from an upper part of the conveying passage to a lower part thereof in the gravitational direction. | 06-18-2009 |
20100196051 | CHARGING DEVICE - A charging device includes: a to-be-charged member; a charging member that charges the to-be-charged member and is opposed to the to-be-charged member; a cover member that surrounds the charging member disposed inside of the cover member but has an opening at a site opposed to the to-be-charged member; a grid electrode that is disposed on the opening side of the cover member with respect to the charging member, the grid electrode being provided between the cover member and the to-be-charged member; and a protective member that is provided along a longitudinal direction of the grid electrode, the protective member protecting an end part of the grid electrode and having at least one opening that is provided between the to-be-charged member and an end part of the cover member on the to-be-charged member side. | 08-05-2010 |
20110085835 | POWDER COLLECTING CONTAINER AND IMAGE FORMING APPARATUS - A powder collecting container includes: a first chamber that is configured to store collected powder; a conveying unit that has a rotary shaft, and a powder conveying blade formed to be wound around the rotary shaft, the conveying unit being arranged along an upper-limit zone for accommodating powder in the first chamber and configured to convey powder which is contained in the first chamber and located at a position exceeding the upper-limit zone. A hollow member has an opening portion formed in a peripheral wall so that a powder conveying end of the conveying unit is located in the opening portion, and that the conveying unit passes through the hollow member. A second chamber has an inlet provided to face the opening portion so that powder conveyed by the conveying unit enters the second chamber from the inlet. | 04-14-2011 |
20110103856 | POWDER RECOVERY CONTAINER AND IMAGE FORMING APPARATUS - A powder recovery container includes a reservoir chamber that stores a recovered powder; a recovery port that faces the reservoir chamber, a powder conveying unit that conveys and recovers the powder through the recovery port being removably inserted into the recovery port; a pair of door panels having rotating shafts arranged at two positions with the recovery port arranged therebetween, the door panels being rotated toward the reservoir chamber around the rotating shafts to open and close the recovery port; sealing members attached to the door panels, the sealing members overlapping one another between distal ends of the door panels to seal a gap between the distal ends of the door panels when the door panels are located at positions, at which the recovery port is closed; and urging members that urge the door panels in a direction, in which the recovery port is closed. | 05-05-2011 |
20110116831 | Image forming apparatus - An image forming apparatus includes an operating portion that moves between a first operating position in which each of positioning members is moved to each of positioning positions and a second operating position in which each of the positioning members is moved to each of releasing positions through each of transmitting members and each of transmitted members when a first transmitting member and a first transmitted member are coupled to each other, and that carries out the movement to a first operating position to move a second positioning member to a second positioning position through a second transmitting member and a second transmitted member and carries out the movement to a second operating position to move the second positioning member to a second releasing position when the first transmitting member and the first transmitted member are decoupled from each other. | 05-19-2011 |
20110318054 | IMAGE FORMING APPARATUS - An image forming apparatus including plural image forming units each having an image-carrier includes: a cylindrical image-carrier body holding an image; a rotary shaft inserted in the image-carrier body, and rotatably supporting the image-carrier body; a coupling member fitted to an end portion of the rotary shaft, transmitting a rotational-drive-force to the rotary shaft; an engaging member projecting from a circumferential surface of the rotary shaft, being engaged to an engaged portion formed in the image-carrier body to disable relative rotation of the image-carrier body to the rotary shaft; and an attaching member continuously inserted into a first through hole formed in the coupling member and a second through hole formed in the rotary shaft and fixed thereto such that an angle formed between the engaging member and the attaching member is substantially 90 degrees as seen in an rotary shaft axial-direction, attaching the coupling member and the rotary shaft. | 12-29-2011 |
20120076559 | CLEANER AND IMAGE FORMING APPARATUS - A cleaner includes a cleaning member having a distal end in contact with an image carrier so as to remove developer attached to the image carrier, a cleaning container that stores the removed developer, a cleaning support body including a cleaning support portion extending from the distal end to a proximal end of the cleaning member so as to support the proximal end of the cleaning member, a bent portion bent from the cleaning support portion, and a supported portion supported by the cleaning container, a vibration-damping body in contact with an end of the bent portion opposite the cleaning support portion so as to regulate vibration of the cleaning support body, and a vibration-damping-body fixing member supported by the cleaning container and having a clamp portion that clamps the vibration-damping body between the vibration-damping-body fixing member and the end of the bent portion. | 03-29-2012 |
20140133890 | POWDER CONTAINER AND IMAGE FORMING APPARATUS - A powder container includes a container body for storing powder, the container body having an introduction port from which the powder is introduced; a transport member having one end provided, in a rotatable manner, on a side wall of the container body, at a position below the introduction port, and the other end serving as a free end that is displaced upward as the amount of powder recovered in the container body increases, the transport member transporting the powder from the one end to the other end by being rotated; and guide portions provided on the container body to guide the transport member in directions intersecting a direction in which the other end of the transport member is displaced as the transport member is displaced upward. | 05-15-2014 |