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| Number | Title | Issue Date |
| 8190059 | Developing unit comprising movement member capable of rotating A developing unit is to be attachable to and detachable from an image forming device main body. The developing unit is provided with a developer case, a developing roller coupled with the developer case, and a movement member coupled with the developer case. The mov... | 05/29/2012 |
| 8170448 | Developing cartridge having input gear and developer roller and supply roller gears A developing cartridge includes an input gear which receives an external driving force; a developing roller which carries developer; a supply roller that is in contact with the developing roller and supplies the developer to the developing roller; a supply roller ge... | 05/01/2012 |
| 8165495 | Devices and methods for retracting a cartridge in an image forming devices The present application is directed to methods and devices for moving a cartridge between engaged and disengaged positions in an image forming device. The image forming device may include a bias control arm movable between first and second positions. When the bias c... | 04/24/2012 |
| 8155558 | Developing cartridge, image forming apparatus having the same, and printing method for an image forming apparatus A developing cartridge usable with an image forming apparatus includes a housing having a developing member, a developer storing portion storing developer supplied to the developing member, and a mounting portion allowing at least one developer cartridge storing sup... | 04/10/2012 |
| 8099020 | Developer cartridge and developing device A developer cartridge and developing device are provided. The developer cartridge is attachable to and detachable from a developing housing, the developing housing supporting a developer carrier and comprising a drive gear for transmitting a driving force to the dev... | 01/17/2012 |
| 8090294 | Image forming apparatus with structure for suppressing rising of developer agitating roller at start of rotation An image forming apparatus includes an image bearing body and a developer apparatus with mutually opposing first and second side faces to supply a developer to the image bearing body. The developer apparatus is installed removably on a frame with first and second wa... | 01/03/2012 |
| 8086138 | Image forming apparatus having developer cartridge including waste container An image forming apparatus is provided. The image forming apparatus includes a housing which comprises a housing side opening through which waste toner passes; a plurality of developing units; a plurality of toner cartridges which correspond to the plurality of deve... | 12/27/2011 |
| 8086139 | Developing cartridge and image forming device A developing cartridge that maintains a pressing condition to press a developer carrier against the image carrier is described. The developing cartridge may include a coil spring that presses the developer carrier against the image carrier. The coil spring may inclu... | 12/27/2011 |
| 8064796 | Image forming apparatus To provide an image forming apparatus which is able to improve image quality while suppressing soiling of image white parts, scattering in the apparatus, streaks, fading, etc. due to non-uniformity in the particle size distribution of a toner or mismatching between ... | 11/22/2011 |
| 8055155 | Image forming apparatus with developing device support structure A detachable developer in which a photosensitive unit and a development unit are separately and independently installed in a main body. The detachable developer includes a first axis connection member extending from one end portion of the photosensitive unit toward ... | 11/08/2011 |
| 8045886 | Image forming apparatus and cartridge for the use therewith An image forming apparatus and a cartridge for use therewith are provided. The image forming apparatus includes a main body; a cartridge that stores a developer; and a supporting member that receives the cartridge, the supporting member being rotatably supported by ... | 10/25/2011 |
| 8036572 | Color electrophotographic image forming apparatus A color electrophotographic image forming apparatus including: an opening in a main body; a door opening and closing the opening; a first tray movable between an inside position and an outside position through the opening while removably supporting drum cartridges h... | 10/11/2011 |
| 8032058 | Electrophotographic image forming apparatus with developer cartridge lock member An electrophotographic image forming apparatus which allows a locking operation to be easily performed even when a lock mechanism for a developing cartridge is provided at a position hard of access for a user. The electrophotographic image forming apparatus includes... | 10/04/2011 |
| 8032057 | Image forming apparatus An image forming apparatus including a plurality of developing devices each having a plurality of guide parts on both lateral sides, a frame body having a plurality of guide members configured to receive the guide parts of the developing devices, a front door for re... | 10/04/2011 |
| 8000631 | Developing device, image forming apparatus, and image forming method A developing device is provided to suppress image density unevenness by adjusting conditions of toner adhesion to an amorphous silicon photoconductor to a suitable range even when using both an amorphous silicon photoconductor and a nonmagnetic monocomponent toner a... | 08/16/2011 |
| 7970315 | Developing cartridge having gear support A developing cartridge is provided. The developing cartridge includes an input gear which receives an external driving force; a developing roller which carries developer; a supply roller that is in contact with the developing roller and supplies the developer to the... | 06/28/2011 |
| 7965958 | Developing device, process cartridge and image forming apparatus A developing device that supplies developer to an image carrier. In a developing device having a developer carrier that is driven in rotation by drive force applied to a gear provided on the shaft section thereof, the developer carrier being pressed in the direction... | 06/21/2011 |
| 7965957 | Developing device and image forming apparatus that uses this developing device A developing device configured such that the developing device or the like can be easily inserted and removed without increasing the size of the apparatus, and an image forming apparatus that uses this developing device as well as a process cartridge. The developing... | 06/21/2011 |
| 7957671 | Image forming device and developing unit with movement member A developing unit is to be attachable to and detachable from an image forming device main body. The developing unit is provided with a developer case, a developing roller coupled with the developer case, and a movement member coupled with the developer case. The mov... | 06/07/2011 |
| 7890021 | Developing cartridge and image forming apparatus A developing cartridge includes a developer carrying member for supplying a developer to an image bearing member; a protecting member provided movably between a closing position where the protective member covers the carrying member and an opening position where the... | 02/15/2011 |
| 7869742 | Developing cartridge and image forming device with pressing member A developing cartridge that maintains a pressing condition to press a developer carrier against the image carrier is described. The developing cartridge may include a coil spring that presses the developer carrier against the image carrier. The coil spring may inclu... | 01/11/2011 |
| 7860434 | Developing cartridge and image forming apparatus including the same A developing cartridge includes a body frame, a photosensitive body having a shaft, a developing unit having a shaft in parallel to the photosensitive body, a driven part that is rotatably joined to the shaft of the developing unit, a transmission part that has a tr... | 12/28/2010 |
| 7840160 | Toner cartridge with memory element, image drum unit with the toner cartridge, and image forming apparatus with the image drum unit A toner cartridge extends in a longitudinal direction, and is detachably attached to an image drum unit. A memory element is electrically connected to an electrical terminal. The toner cartridge includes a first end portion on which the electrical terminal is dispos... | 11/23/2010 |
| 7835666 | Image forming apparatus and power transmission unit thereof An image forming apparatus including: a main body including a manipulating unit which manipulates the power transmission unit, a driving component having a driving assembling member which is disposed in a direction of a rotational driving axial line; a developing de... | 11/16/2010 |
| 7831175 | Developer cartridge guide unit and image forming apparatus having the same A developing unit of an image forming apparatus includes a developing member to develop an electrostatic latent image on a photosensitive medium with a developer, a first feed member to feed the developer to the developing member, and a reset member disposed above t... | 11/09/2010 |
| 7831174 | Rotary developer and image formation apparatus having rotary developer A rotary developer for an image forming apparatus. Development cartridges accommodated in a rotary unit at a predetermined set position are selectively moved between development and non-development positions. A self-attachment locking mechanism including a pre-press... | 11/09/2010 |
| 7817938 | Developer cartridge and image forming apparatus with shaft misalignment accomodation A developer cartridge includes a developer roller, a receiving unit for receiving a driving force, a transmitting unit for transmitting the driving force from the receiving unit to the developer roller, and a transferring unit for transferring the drive force from t... | 10/19/2010 |
| 7813673 | Developing cartridge having gear support A developing cartridge is provided. The developing cartridge includes an input gear which receives an external driving force; a developing roller which carries developer; a supply roller that is in contact with the developing roller and supplies the developer to the... | 10/12/2010 |
| 7813672 | Image forming apparatus and developer cartridge An elastic member for urging a developer carrier in the direction of an image carrier is located in a casing of a developer cartridge. Since the elastic member will be new whenever the developer cartridge is replaced, an urging force of the elastic member will not d... | 10/12/2010 |
| 7783229 | Detachable developer having development unit supported at three positions A detachable developer in which a photosensitive unit and a development unit are separately and independently installed in a main body. The detachable developer includes a first axis connection member extending from one end portion of the photosensitive unit toward ... | 08/24/2010 |
| 7783228 | Developing unit and developer stirring/transporting method A developing unit and a developer stirring and transporting method are provided that enable smooth discharge of a developer in the developing unit without being affected by the inclination of the developing unit. A developing unit 10 has a developing roller | 08/24/2010 |
| 7764904 | Image forming apparatus with conductive member and developing device thereof An image forming apparatus having the improved construction and mounting structure of a device for charging paper to be attached to a paper feed body is disclosed. The image forming apparatus includes a plurality of developing devices and a paper feed body which is ... | 07/27/2010 |
| 7756443 | Image forming apparatus and developing cartridge having driving input and guide A system that provides a compact and functional image forming device that can securely supply a driving force to the developing cartridge is described. A developing cartridge is described that can be mounted to the image forming device in an insertable/removable man... | 07/13/2010 |
| 7756444 | Liquid Developer A liquid developer which has excellent preservability, storage stability for a long period of time, and fixing characteristic of toner particles and which is also harmless to the environment is provided. The liquid developer contains an insulation liquid and toner p... | 07/13/2010 |
| 7747193 | Developing device with detachable toner cartridge and image forming apparatus having the same A developing device includes a cabinet, a developer carrier, a transport member rotating around a transport member shaft, and a developer cartridge attachable to and detachable from the cabinet. The developer cartridge includes a cartridge side first opening and a c... | 06/29/2010 |
| 7720413 | Image-forming device with holding unit having multiple positions An image-forming device includes: a main body; at least one photosensitive member; a plurality of developing units; a transferring unit; a first holding unit; and a guiding unit. The photosensitive member has a support shaft. Each developing unit has a developer-acc... | 05/18/2010 |
| 7715756 | Image forming apparatus with linear movement member An image forming apparatus that includes: an image carrier on which an electrostatic latent image is formed; a developing agent carrier which supplies developing agent to the image carrier; a linear movement member which reciprocally and substantially linearly moves... | 05/11/2010 |
| 7706720 | Restricting unit for restricting a supporter of a plurality of developers in an image forming apparatus An image forming apparatus comprises: a housing; a supporter located in the housing, a plurality of developing apparatus attachable to and detachable from the supporter; and a restricting unit that restricts movement of the supporter while at least one developing ap... | 04/27/2010 |
| 7693451 | Developing device and image forming apparatus A developing device and image forming apparatus are provided. The developing device includes a chassis; a developer carrying member; a thickness regulating member; a supply member; and a conveying member. In a state in which the developing device is attached to a ma... | 04/06/2010 |
| 7689147 | Developing apparatus and developer collecting method There are provided a developing apparatus and a developer collecting method, in which a collection unit to collect a developer discharged from a developing unit by overflow is disposed not to largely protrude to the outside of an installation space of the developing... | 03/30/2010 |
