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| Number | Title | Issue Date |
| 7949265 | Toner supply device, developing device and image forming apparatus with residual quantity of toner based control A toner supply device for supplying toner to a developing device includes: a first toner supply portion for supplying toner to a developing hopper; a second toner supply portion for supplying the stored toner to the first toner supply portion; a first toner supply d... | 05/24/2011 |
| 7949266 | Image forming apparatus with function of toner supply amount control An image forming apparatus transfers a toner image, which has been formed onto an image carrying member, to a printing medium. The image forming apparatus includes a sub-scan distance measuring part configured to measure a distance along a sub-scan direction from a ... | 05/24/2011 |
| 7945175 | Toner container structure and method for assessing toner consumption in an image forming apparatus The present invention provides a toner container system (such as a toner cartridge) and method for determining the toner consumed by each pixel in an image forming apparatus, such as a printer, so to accurately assess the amount of toner remaining in the toner conta... | 05/17/2011 |
| 7937003 | Image forming apparatus and method of determining degradation of charging property of developer A photosensitive layer of a photosensitive drum is charged and a surface of the photosensitive layer is exposed at a specified density and then a development bias is applied to a development roller. An absolute value of a detection voltage is obtained from a develop... | 05/03/2011 |
| 7929871 | Image forming apparatus, image quality management method and image quality management program A technique is provided which enables keeping color developers of yellow, magenta and cyan in developing devices in a satisfactory state even in a circumstance where a black toner is mainly used, in an image forming apparatus which is capable of executing image qual... | 04/19/2011 |
| 7929872 | Xerographic process controls scheduling approach to mitigate costs of measurement A method and apparatus for maintaining color consistency includes varying a sampling interval to balance the benefit of xerographic process controls regulation with the cost of sampling. The request to sample is triggered by external indicators (area coverage, carri... | 04/19/2011 |
| 7929870 | Image forming apparatus with a toner dispensing control unit An image forming apparatus includes: an image carrying member; a developing unit that develops an electrostatic latent image formed on the image carrying member using toner; a toner dispensing unit that dispenses the toner to the developing unit; and a toner dispens... | 04/19/2011 |
| 7925173 | Monitoring apparatus, image forming apparatus, and image forming system A monitoring apparatus includes a determining unit that determines in advance a first target amount, which is determined as a target of consumption amount of a colorant at a first timing, at which a first predetermined period from start of use of the colorant in ima... | 04/12/2011 |
| 7925174 | Image forming apparatus An image forming apparatus includes a latent image carrier, a developing unit to develop a latent image on the image carrier with developer including toner and carrier, a developer bearing member, a first detector to detect a toner adhesion amount per unit area of a... | 04/12/2011 |
| 7920799 | Image forming apparatus for controlling replenishing toner into developing device An image forming apparatus is provided with a photoconductor to have an electrostatic latent image formed thereon, a developing device for developing the electrostatic latent image with a toner, a toner replenishing device for replenishing the toner into the develop... | 04/05/2011 |
| 7912385 | Image forming apparatus and developer level calculating method of the same An image forming apparatus and a developer level calculating method of the same. The image forming apparatus includes a developing unit which includes a developing roller to provide the developer onto a photosensitive body, a developing sensor to sense a developer l... | 03/22/2011 |
| 7903986 | Reuse method and a reusable device for an image forming apparatus having a first process linear velocity and a second image processing apparatus having a second process linear velocity In a reuse method for reusing a reusable device and a sensor of a first image forming apparatus having a first process linear velocity in a second image forming apparatus having at least one second process linear velocity different from the first process linear velo... | 03/08/2011 |
| 7899343 | Image forming apparatus An image forming apparatus includes an image bearing member on which an electrostatic image is to be formed; a developing device for accommodating a developer including toner and a carrier and for developing the electrostatic image with the developer; a developer su... | 03/01/2011 |
| 7899344 | Image forming apparatus An image forming apparatus includes a first cabinet, a toner carrier, an image carrier, a second cabinet disposed adjacent to the first cabinet, a toner amount detector and an empty decision unit. An inside of the first cabinet is communicated to an inside of the se... | 03/01/2011 |
| 7885556 | Image forming apparatus for correcting a toner density target value In an image forming apparatus a developing device develops an electrostatic latent image on an image carrier with a developer that contains toner to obtain a toner image, a toner-amount detecting unit detects amount of toner attached to the toner image, and a toner-... | 02/08/2011 |
| 7881623 | Image forming apparatus with developer supply control An image forming apparatus includes a developing device for developing an electrostatic image with a developer; a developer amount detecting device for detecting an amount of a developer in the developing device; a developer consumption amount calculating device for... | 02/01/2011 |
| 7881624 | Developer cartridge, developing unit and image forming apparatus having the same A developer cartridge includes a cartridge body including a developer discharge port, a remaining developer detecting unit arranged in the proximity to the developer discharge port, and an agitating unit rotatably arranged inside the cartridge body to convey the dev... | 02/01/2011 |
| 7865091 | Image forming apparatus having a transfer surface with elasticity and image forming method A technology for controlling the generation of damages of a photoconductive surface caused due to the attachment of a carrier to a photoconductor in an image forming apparatus using a two-component developing agent is provided. An image forming apparatus is configur... | 01/04/2011 |
| 7848665 | Image forming apparatus, image forming method, image forming computer program, and computer readable storage medium containing the program The image forming apparatus include: a resistance detection section (14) for measuring a volume resistivity of a two component developer (11) on a surface of a developer bearing member (12); a resistance memory section (16) for storing th... | 12/07/2010 |
| 7848664 | Toner supply device and image forming apparatus It is possible to estimate the quantity of toner remaining in the storage container by stopping the supply of toner from the storage container when the quantity of toner in the storage section is at a prescribed level, by starting the supply of toner after continuin... | 12/07/2010 |
| 7848666 | Image forming apparatus and image forming method A control unit separately drives an image carrier driving unit that drives an image carrier motor, a developing roller driving unit that drives a developing roller motor, a developer stirring member driving unit that drives a developer stirring member motor, and a f... | 12/07/2010 |
| 7835652 | Image developing method, image developing device, and image forming device An image developing method is disclosed that is able to efficiently remove degraded toner on a developing agent carrier, prevent formation of abnormal images, ensure good image quality over time, and increase the service life of the device. The developing method inc... | 11/16/2010 |
| 7835651 | Image forming apparatus and image forming method An image forming apparatus includes a development portion holder that is mounted with a plurality of development portions having a memory storing information on the corresponding development portion and that selectively positions the development portions at developm... | 11/16/2010 |
| 7831158 | Image forming apparatus capable of controlling toner supply An image forming apparatus, including a toner supplying unit to supply toner, a toner transporting unit to transport the toner supplied from the toner supplying unit, a sensor to sense a density of the toner transported by the toner transporting unit, a compensating... | 11/09/2010 |
| 7831159 | Image forming apparatus for forming toner image using developer made of toner and carrier An apparatus is configured to charge an image bearing member in a charging section, develop an electrostatic image formed on the image bearing member, and transfer a toner image formed on the image bearing member to a transfer medium in a transfer section. The appar... | 11/09/2010 |
| 7813657 | Toner concentration field measurement tool A tool used in the TC measurement in the field includes a venturi shaped container that when connected to vacuum pressure from a portable vacuum cleaner takes advantage of cyclone separator functionality to assist in separation of fine toner from carrier beads with ... | 10/12/2010 |
| 7809291 | Image forming apparatus with a two component developer, toner density detection and toner density correction An image forming apparatus in which a predetermined image density can be obtained by correcting a toner density control target value without consuming toner. The output value Vt of the magnetic permeability sensor and the target output value Vtref are com... | 10/05/2010 |
| 7805088 | Image forming apparatus An image forming apparatus equipped with an improved developer detecting device and agitating device to simplify an inner structure of a developing device and/or a waste developer container while reducing the number of components and costs. The image forming apparat... | 09/28/2010 |
| 7801453 | Adaptive toner gas gauge In accordance with certain aspects, an adaptive system and method are implemented to estimate the level of a consumable such as toner on a gauge that accommodates machine-to-machine variances, individual machine degradation over time, and otherwise correct over time... | 09/21/2010 |
| 7796900 | Developer cartridge replacement scheme for electrostatographic printing An electrostatographic printer includes a development housing for supplying developer to an image receptor, and a replenisher in communication with the development housing. In a basic state, a regular supply of developer having a first predetermined TC is supplied. ... | 09/14/2010 |
| 7787784 | Powder conveying device, developing device, process cartridge, and image forming apparatus A powder conveying device includes a powder container, a powder conveying tube, a powder conveying member, and a detecting unit. The powder container is configured to contain powder. The powder conveying tube guides the powder from the powder container to a conveyan... | 08/31/2010 |
| 7783208 | Image forming apparatus and toner consumption amount calculating method An image forming apparatus which forms an image using toner includes: a data processor which performs data processing of input image data corresponding to a toner color and accordingly generates output image data needed to obtain a predetermined tone reproduction ch... | 08/24/2010 |
| 7783209 | Image forming apparatus and method of activating the apparatus during filling with developing agent An image forming apparatus includes an image carrying member, a development unit, a first driving unit, a second driving unit, and a cleaning blade. The image carrying member forms a latent image thereon. The development unit develops the latent image formed on the ... | 08/24/2010 |
| 7778556 | Toner supply device, image forming apparatus and toner shortage detecting method A toner supply device including: a toner bottle filled with toner; and a toner supply assembly mounting mechanism having the toner bottle mounted thereon and feeding toner discharged from the toner bottle to a developing unit and supplying toner to the developing un... | 08/17/2010 |
| 7773890 | Toner supplier, toner supply method, image forming apparatus and toner supply system A toner supplier, including a toner container configured to contain a toner, an air discharger configured to discharge air from a bottom of the toner container to form a fluidized toner, a detector configured to detect usage information of the toner contained in the... | 08/10/2010 |
| 7773892 | Image forming apparatus with variable photoconductor charging and variable developing bias voltage An image forming apparatus including: an image forming section for forming an image, the image forming section including a photoconductor, a charging unit, a developing unit, a toner supply unit which supplies a toner to said developing unit, and a developing bias p... | 08/10/2010 |
| 7773891 | System and method for determining volume of an imaging medium in a cartridge Systems and methods for determining the volume of imaging medium in a cartridge are disclosed. An imaging medium may include a movable housing portion and a device coupled to the movable housing portion. The movable housing portion may include a volume of imaging me... | 08/10/2010 |
| 7769308 | Image forming apparatus to perform color substitution, and method for controlling the same An image forming apparatus and a method of controlling the image forming apparatus. When print data is printed, the remaining amount of toner of each of the CMYK colors is analyzed. When print data is printed, the apparatus analyzes an original color of the print da... | 08/03/2010 |
| 7764887 | Developing device and image forming apparatus A developing device includes a developing roller that supplies two-component developer from a developer container to an image carrier, and a first developer supplying unit and a second developer supplying unit arranged in parallel, one closer to the developing rolle... | 07/27/2010 |
| 7761015 | Toner dispensing system and method for controlling the same A toner dispensing system and a method for controlling the same. A toner dispensing amount is determined using a pixel dispensing time related to a pixel count adjusted according to the ratio of a transition count to a pixel count per page, a Δ automatic concentrat... | 07/20/2010 |
