Patent application number | Description | Published |
20090052946 | Density Measuring Device, Liquid Developer Storing Apparatus, and Image Forming Apparatus - A density measuring device includes a moving member that can be moved in a liquid, a light emitting member and a light receiving member that receives light emitted by the light emitting member. A gap part in which the moving member is disposed in a path of light emitted from the light emitting member can be moved. A density measuring unit measures the density of the liquid based on the result of output of the light receiving member for a case where the moving member is located in the path of light emitted from the light emitting member and a case where the moving member is not located in the path of light emitted from the light emitting member. | 02-26-2009 |
20090053407 | Method of Measuring Density, Method of Adjusting Density of Liquid Developer Storing Unit, and Image Forming Method - A method of measuring density includes detecting movement of a moving member in a light path of light emitted from a light emitting member, measuring an output of a light receiving member for a case where the moving member is moved in the light path, as a first output, detecting that the moving member is not in the light path, measuring an output of the light receiving member for a case where the moving member is not in the light path, as a second output, and calculating density based on the first output and the second output. | 02-26-2009 |
20090060587 | Development Device, Development Method, and Image Forming Device - A development device includes a developer container reserving a liquid developer containing toner particles and a carrier liquid. A developer supply member supplies a developer supporting member with liquid developer. An agitating member is disposed in the developer container and supplies the developer supply member with the liquid developer. A developer supporting member cleaning member removes liquid developer on the developer supporting member. The developer container includes a first developer holding section having at least one communication section for making liquid developer flow in, a second developer holding section for reserving liquid developer recovered by the developer supporting member cleaning member, and a partition member partitioning between the first and second developer holding sections, and at least one flowing section shifted from the communication section in an axial direction of the agitating member and allowing liquid developer to move between the first and second developer holding sections. | 03-05-2009 |
20090116876 | Liquid Developer Transport Device and Image Forming Apparatus - A liquid developer transport device includes: a channel switching part that dispenses a liquid developer; a first channel for flowing the liquid developer dispensed by the channel switching part; a filtering part provided in the first channel for filtering the liquid developer flowing in the first channel; a first storage part connected to the first channel for storing the liquid developer filtered by the filtering part; a second channel for flowing the liquid developer dispensed by the channel switching part; and a second storage part connected to the second channel for storing the liquid developer flowing in the second channel. | 05-07-2009 |
20090220283 | Developing Device and Image Forming Apparatus - A developing device includes: a developer carrying body that carries liquid developer containing toner and carrier liquid; a developer supplying member adapted to rotate in a first sense of rotation to supply liquid developer to the developer carrying body; a contact member arranged at a first side relative to a virtual perpendicular plane passing through the axis of the developer supplying member so as to contact the developer supplying member; a supply section that stores liquid developer to be supplied by the developer supplying member to the developer carrying body; and an agitating member adapted to rotate in a second sense of rotation different from the first sense of rotation and arranged at a second side relative to the virtual perpendicular plane passing through the axis of the developer supplying member. | 09-03-2009 |
20090245833 | Development Device, Image Forming Apparatus and Image Forming Method - A development device includes a developer carrier | 10-01-2009 |
20100080595 | Image Forming Apparatus, Developing Method, and Image Forming Method - An image forming apparatus includes: a latent image carrier on which a latent image is formed; a charging unit that charges the latent image carrier; an exposing unit that exposes the latent image carrier charged by the charging unit and forms the latent image; a developing unit including a developer carrier that carries liquid developer including toner and carrier liquid, a developer feeding member that feeds the liquid developer to the developer carrier, a bias applying member that applies a bias to the liquid developer on the developer carrier, a developer carrier cleaning member that collects the liquid developer on the developer carrier, a collected developer storing portion that stores the liquid developer collected by the developer carrier cleaning member, a feeding unit that feeds the liquid developer to the collected developer storing portion and the developer feeding member, a conveying member that stirs the liquid developer collected by the collected developer storing portion, and a stirring amount adjusting member that adjusts the stirring amount of the conveying member; and a transfer member that transfers an image on the latent image carrier. | 04-01-2010 |
20100086297 | Concentration Detection Apparatus and Image Formation Apparatus - A concentration detection apparatus includes: a light-emitting element that emits light; a light-emitting-element holding unit that holds the light-emitting element; a light-receiving element that receives light emitted from the light-emitting element; a light-receiving-element holding unit that holds the light-receiving element and is provided opposite to the light-emitting-element holding unit with a gap therebetween; a moving unit that can move through or at the gap between the light-emitting-element holding unit and the light-receiving-element holding unit; and a gap adjusting unit that adjusts a value of the gap as a distance between the light-emitting-element holding unit and the light-receiving-element holding unit. | 04-08-2010 |
20100104302 | Developing Device, Image Forming Apparatus, and Developing Method - A developing device includes: a developer storage portion which stores a liquid developer including toner and carrier liquid; a first coating member which rotates and coats the liquid developer stored in the developer storage portion; a second coating member which comes into contact with the first coating member and rotates in a direction opposite to that of the first coating member and slower than a rotary peripheral velocity of the first coating member; and a developer supporting body which comes into contact with the second coating member and rotates in the same direction as that of the second coating member and faster than a rotary peripheral velocity of the second coating member. | 04-29-2010 |
20100111553 | Developing Device and Image Forming Apparatus - A developing device includes a developer storage portion that stores a liquid developer including toner and carrier liquid. A first coating member rotates and coats the liquid developer stored in the developer storage portion. A second coating member contacts the first coating member and rotates in a direction opposite to that of the first coating member. A developer supporting body contacts the second coating member and rotates in the same direction as that of the second coating member. A contact member contacts the liquid developer coated on the second coating member by the first coating member. | 05-06-2010 |
20100278562 | Development Device and Image Forming Device - A development device includes a developer container reserving a liquid developer containing toner particles and a carrier liquid. A developer supply member supplies a developer supporting member with liquid developer. An agitating member is disposed in the developer container and supplies the developer supply member with the liquid developer. A developer supporting member cleaning member removes liquid developer on the developer supporting member. The developer container includes a first developer holding section having at least one communication section for making liquid developer flow in, a second developer holding section for reserving liquid developer recovered by the developer supporting member cleaning member, and a partition member partitioning between the first and second developer holding sections, and at least one flowing section shifted from the communication section in an axial direction of the agitating member and allowing liquid developer to move between the first and second developer holding sections. | 11-04-2010 |
20120201555 | Image Forming Apparatus and Image Forming Method - An image forming apparatus of the invention includes; a cleaning member that collects liquid developer by cleaning a developer carrier; a first transporting path that moves the liquid developer collected by the cleaning member; an oscillating member that applies vibration to the liquid developer transported from the first transporting path; a developer supply unit that stores the liquid developer transported from a first transporting mechanism; a second transporting mechanism that includes a second transporting path that transports the liquid developer stored in the developer supply unit to a developer storage in a developing unit; and a control unit that adjusts a toner charge current applied to the toner charging unit and controls vibration applied to the oscillating member on the basis of the adjusted toner charge current. | 08-09-2012 |
20120201563 | Image Forming Apparatus, Latent Image Carrying Unit, and Developing Unit - Provided is an image forming apparatus including: a latent image carrying drum on which a latent image is formed; a charging section that includes a corona charger charging the latent image carrying drum and an air flow duct formed in the corona charger so as to be long in the rotation axis direction of the latent image carrying drum so that air flows in the corona charger; a developing section that is disposed above the air flow duct in the vertical direction, is formed so as to be shorter than the air flow duct in the rotation axis direction of the latent image carrying drum, and develops the latent image formed on the latent image carrying drum by a liquid developing agent including toner and a carrier liquid. | 08-09-2012 |
20120207508 | Image Forming Apparatus and Image Forming Method - The image forming apparatus includes an image carrier drum on which a latent image is formed; a development unit which includes a development roller coming into contact with the image carrier drum on an upward side of a virtual horizontal plane, which is perpendicular to a virtual vertical plane passing through a rotation center of the image carrier drum, in a vertical direction and developing the latent image formed on the image carrier drum with a liquid developer containing toner and a carrier liquid; a squeeze unit which comes into contact with the image developed by the development roller on the upward side of the virtual horizontal plane in the vertical direction and includes a squeeze roller squeezing the image; and a transfer unit which transfers the image squeezed by the squeeze roller to a transfer member on a downward side of the virtual horizontal plane in the vertical direction. | 08-16-2012 |
20120207516 | Collecting Device and Image Forming Apparatus - A collecting device according to the invention includes: a collecting unit that collects a liquid developer containing toner and a carrier liquid; a collected-liquid storage that stores the liquid developer collected by the collecting unit; a first transporting path that transports the liquid developer stored in the collected-liquid storage; a second transporting path that transports the liquid developer stored in the collected-liquid storage; and a control unit that switches transportation of the liquid developer stored in the collected-liquid storage to the first transporting path or the second transporting path. | 08-16-2012 |
20120213542 | Image Forming Apparatus, Image Forming Method, and Recovery Device - A developing roller which comes into contact with a latent image carrier drum on a first side with respect to an imaginary vertical plane passing through the rotation center of the latent image carrier drum, thereby developing a latent image which is carried on the latent image carrier drum by a liquid developer that includes toner and carrier liquid is provided, and a squeeze roller which comes into contact with the latent image carrier drum developed by the developing roller on a second side on the opposite side to the first side with respect to the imaginary vertical plane further on the upper side in the vertical direction than an imaginary horizontal plane passing through the rotation center of the latent image carrier drum and perpendicular to the imaginary vertical plane, thereby squeezing an image developed to the latent image carrier drum is provided. | 08-23-2012 |
20120219325 | Developing Device, Image Forming Apparatus, and Recovery Device - In a developing device which supplies a liquid developer to a developer holder roller using a supply member and performs development using the liquid developer, and an image forming apparatus including the developing device, a developer holder cleaning unit which cleans the developer holder roller and recovers the liquid developer in order to prevent the liquid developer after development from being adhered to the supply member, a supply member cleaning unit which cleans the supply member and recovers the liquid developer, a recovery path member which is disposed above the supply member in a vertical direction and receives the liquid developer recovered by the developer holder cleaning unit, and a recovery unit which is disposed above the recovery path member in the vertical direction and stores the liquid developer moved to the recovery path member and the liquid developer recovered by the supply member cleaning unit are provided. | 08-30-2012 |
20120237266 | Developing Apparatus and Image Forming Apparatus - A driving force produced by a first driving motor is transmitted to a developing roller and an intermediate application roller by a first drive transmission unit, and the developing roller and the intermediate application roller are rotated as a result. The developing roller and the intermediate application roller thus take the first driving motor as a drive source, and receive the driving force from the first driving motor via the same first drive transmission unit. As a result, the phases of the fluctuation in a rotational component of the first driving motor and the cyclic fluctuation of gear interlocking match, which reduces a rotational velocity difference between the developing roller and the intermediate application roller. | 09-20-2012 |
20120237276 | Image Forming Apparatus - An image forming apparatus of the invention includes a carrier solution application roller that rotates centering on a rotary shaft and applies a carrier solution to a transfer roller after an image of a liquid developer including toner and the carrier solution is transferred to a transfer medium, a transfer roller cleaning roller, supported by a cleaning member support portion through a rotary shaft, which removes toner remaining in the transfer roller, and a carrier solution application roller of which the amount of movement is larger than the amount of movement of the transfer roller cleaning roller when the cleaning member support portion is rotated. Even when the transfer roller moves, satisfactory cleaning properties are secured without breaking a mutual positional relationship by facilitating mutual positioning between the transfer roller and the transfer roller cleaning roller. | 09-20-2012 |