Patent application number | Description | Published |
20080286668 | TWO-COMPONENT DEVELOPER, REPLENISHING DEVELOPER, AND IMAGE-FORMING METHOD - An object of the present invention is to provide a two-component developer which can achieve a high-definition image with a smaller toner laid-on level than a conventional one, provides a color gamut comparable to that of printing, can respond to an increase in printing speed, and allows an image with a stable tinge to be formed even in long-term use. The object can be achieved by a two-component developer containing a cyan toner and a magnetic carrier, the two-component developer being characterized in that the cyan toner has the following characteristics: (i) when the concentration of the cyan toner in a solution of the cyan toner in chloroform is represented by Cc (mg/ml) and the absorbance of the solution at a wavelength of 712 nm is represented by A712, a relationship between Cc and A712 satisfies the relationship of 2.0011-20-2008 | |
20100159380 | TWO-COMPONENT DEVELOPER, REPLENISHING DEVELOPER, AND IMAGE-FORMING METHOD - A two-component developer containing a cyan toner and a magnetic carrier, wherein the cyan toner has the characteristics: (i) when the concentration of the cyan toner in a solution of the cyan toner in chloroform is represented by Cc (mg/ml) and the absorbance of the solution at a wavelength of 712 nm is represented by A712, a relationship between Cc and A712 satisfies the relationship of 2.0006-24-2010 | |
20100203438 | TWO-COMPONENT DEVELOPER, REPLENISHING DEVELOPER, AND IMAGE-FORMING METHOD - A two-component developer containing a yellow toner and a magnetic carrier, wherein the yellow toner has the characteristics: (i) when the concentration of the yellow toner in a solution of the yellow toner in chloroform is represented by Cy (mg/ml) and the absorbance of the solution at a wavelength of 422 nm is represented by A | 08-12-2010 |
20100248126 | TWO-COMPONENT DEVELOPER, REPLENISHING DEVELOPER, AND IMAGE-FORMING METHOD - A two-component developer containing a magenta toner and a magnetic carrier, wherein the magenta toner has the characteristics: (i) when the concentration of the magenta toner in a solution of the magenta toner in chloroform is represented by Cm (mg/ml) and the absorbance of the solution at a wavelength of 538 nm is represented by A538, a relationship between Cm and A538 satisfies the relationship of 2.0009-30-2010 | |
20100254733 | IMAGE FORMING APPARATUS - An image forming apparatus including: an image bearing member; and a developer bearing member bearing a developer including a toner and a carrier, the developer bearing member developing an electrostatic image formed on the image bearing member with the developer, and the developer bearing member being applied with an alternate voltage in order to form an alternate electric field between the developer bearing member and the image bearing member, wherein assuming that electric field intensities Eb and Ed be Eb=|(Vp | 10-07-2010 |
20110097661 | TWO-COMPONENT DEVELOPER, REPLENISHING DEVELOPER, AND IMAGE-FORMING METHOD - An object of the present invention is to provide a two-component developer which can achieve a high-definition image with a smaller toner laid-on level than a conventional one, provides a color gamut comparable to that of printing, can respond to an increase in printing speed, and allows an image with a stable tinge to be formed even in long-term use. The object can be achieved by a two-component developer containing a cyan toner and a magnetic carrier, the two-component developer being characterized in that the cyan toner has the following characteristics: (i) when the concentration of the cyan toner in a solution of the cyan toner in chloroform is represented by Cc (mg/ml) and the absorbance of the solution at a wavelength of 712 nm is represented by A712, a relationship between Cc and A712 satisfies the relationship of 2.0004-28-2011 | |
20120094225 | TWO-COMPONENT DEVELOPER, REPLENISHING DEVELOPER, AND IMAGE-FORMING METHOD - A two-component developer containing a cyan toner and a magnetic carrier, the cyan toner having the following characteristics: (i) when the concentration of the cyan toner in a solution of the cyan toner in chloroform is represented by Cc (mg/ml) and the absorbance of the solution at a wavelength of 712 nm is represented by A712, a relationship between Cc and A712 satisfies the relationship of 2.0004-19-2012 | |
Patent application number | Description | Published |
20100034564 | IMAGE FORMING APPARATUS - An image forming apparatus includes a developer carrying member to which a developing bias is applied. A frequency f of a developing bias waveform, a developing area S1 which is a time-integrated value of a difference between a voltage value of the developing bias and a solid electrostatic image potential VL in a developing period of the developing bias, a collecting area S2 which is a time-integrated value of a difference between the voltage value of the developing bias and VL in a collecting period of the developing bias, and a developing contrast value Vcon are used for defining a range of a value of the developing bias frequency f, a range of a value of a voltage change rate α at VL during transition of the developing bias voltage value from a developing-side voltage to a collecting-side voltage, and a range of a value represented by the formula: | 02-11-2010 |
20100159382 | ELECTROPHOTOGRAPHIC DEVELOPMENT CARRIER, TWO-COMPONENT DEVELOPER AND IMAGE-FORMING METHOD USING THE TWO-COMPONENT DEVELOPER - A carrier has an impedance Z having a frequency dependence, obtained by alternating current impedance measurement. When the frequency dependence is fitted by a fitting function, parameter α lies in a range of 0.70 to 0.90 in an electric field of 10 | 06-24-2010 |
20100183971 | MAGNETIC CARRIER, TWO-COMPONENT DEVELOPER AND IMAGE FORMING METHOD - A magnetic carrier having magnetic carrier particles each containing at least a magnetic core particle and a resin; the magnetic carrier having a resistivity of from 1.0×10 | 07-22-2010 |
20100209147 | IMAGE FORMING APPARATUS - A duty ratio Du (%), denoted by (T | 08-19-2010 |
20110111337 | MAGNETIC CARRIER - In the formation of images by a two-component development system, provided is a magnetic carrier that can be used to output an image which has sufficient density, in which few white spots are present in a low-density portion located near the boundary between a high-density region and a low-density region, and in which the low-density portion has good graininess. The magnetic carrier contains magnetic carrier particles each of which has resin and a magnetic particle. The magnetic particle contains ferrite phases and phases comprising a perovskite-structured compound. The ferrite phases and phases comprising a perovskite-structured compound are combined. | 05-12-2011 |
20130216263 | IMAGE FORMING APPARATUS - An image forming apparatus includes: an image bearing member; an electrostatic image forming device; and a developer carrying member. The developer carrying member is provided so as to be rotated in a direction opposite to a rotational direction of the image bearing member at a peripheral speed higher than that of the image bearing member. When the peripheral speed of the image bearing member is Vp (m/sec), the peripheral speed of the developer carrying member is Vs (m/sec), and a time, of movement of the developer from the surface of the developer carrying member to the image bearing member, actually measured in a gap between the image bearing member and the developer carrying member is Tsd (sec), the peripheral speeds Vp and Vs and the time Tsd satisfy the following relationship: (Vs−Vp)×Tsd<3×10 | 08-22-2013 |
20130223861 | IMAGE FORMING APPARATUS - An image forming apparatus includes a photosensitive drum; a first sleeve for carrying a developer containing toner and a carrier having a volume resistivity lower than that of the toner and for developing an image on the drum by rubbing the drum with the developer; a second sleeve for carrying the developer received from the first sleeve and for developing the image by rubbing the drum with the developer carried on the second sleeve; a voltage source for applying a developing bias voltage including a DC voltage component and an AC voltage component to the first sleeve and second sleeve; and a driving device for rotating the first sleeve at a peripheral speed higher than the drum and for rotating the second sleeve at a peripheral speed which is higher than the drum and which is lower than the first sleeve. | 08-29-2013 |
20140161493 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - The developing device includes: a developing container that stores a developer including a non-magnetic toner and a magnetic carrier; a toner bearing member that bears the toner and conveys the toner to a developing portion; and a separating portion wherein a surface of the toner bearing member includes a plurality of recess structures in which a smallest opening width R is equal to or larger than r | 06-12-2014 |
20140270826 | IMAGE FORMING APPARATUS - The image forming apparatus includes an image carrier, a developer carrier, a magnetic field generation unit that is fixedly disposed in a hollow part of the developer carrier and includes a plurality of magnetic poles disposed in a circumferential direction of the developer carrier, a conductive member disposed so as to oppose a predetermined magnetic pole, of the plurality of magnetic poles, which is located odd-number pole upstream of a magnetic pole corresponding to a developing area D in a rotational direction of the developer carrier, a power source that can apply a voltage to the conductive member, a potential detection unit configured to detect pre-development and post-development potentials of a predetermined image formed on the image carrier, and a changing unit configured to change the voltage to be applied from the power source to the conductive member based on a detection result obtained by the potential detection unit. | 09-18-2014 |
Patent application number | Description | Published |
20110295709 | COMPUTER-READABLE STORAGE MEDIUM, INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING SYSTEM, AND INFORMATION PROCESSING METHOD - A game apparatus executes an application loaded from a storage section, and generates an application information frame that contains most-recently-used app ID information that is identification information of the executed application. Then, the game apparatus transmits the application information frame to another game apparatus. The game apparatus receives, from the other game apparatus, most-recently-used app ID information that identifies an application executed by the other game apparatus. The game apparatus displays the received most-recently-used app ID information. | 12-01-2011 |
20120072857 | COMPUTER-READABLE STORAGE MEDIUM, DISPLAY CONTROL APPARATUS, DISPLAY CONTROL METHOD AND DISPLAY CONTROL SYSTEM - One or more objects and one or more icons corresponding to the one more objects, respectively, are simultaneously displayed on a screen of an upper LCD and a screen of a lower LCD, respectively. On the screen of the lower LCD, the one or more icons are placed in a plurality of placement areas and displayed. On the screen of the upper LCD, an object of the one or more objects, which corresponds to a respective icon of the one or more icons displayed on the screen of the lower LCD, is placed for display at a predetermined position with which the placement area in which the icon is placed is associated, in the virtual space. | 03-22-2012 |
20120113228 | IMAGE DISPLAY SYSTEM, IMAGE DISPLAY APPARATUS, AND IMAGE DISPLAY METHOD - A hand-held image display apparatus includes a touch panel, a stereoscopic display apparatus, a first imaging section, and a second imaging section. The hand-held image display apparatus detects a marker from a real world image shot by at least one of the first imaging section and the second imaging section, and determines the relative positions of a virtual object and a pair of virtual cameras with respect to each other in a virtual space, based on the result of the detection. Then, the hand-held image display apparatus superimposes virtual space images drawn based on the first virtual camera and the second virtual camera, onto the real world images shot by the first imaging section and the second imaging section, and displays images that are stereoscopically visible by naked eyes, on the stereoscopic display apparatus. | 05-10-2012 |
20130201293 | IMAGE DISPLAY SYSTEM, IMAGE DISPLAY APPARATUS, AND IMAGE DISPLAY METHOD - A hand-held image display apparatus includes a touch panel, a stereoscopic display apparatus, a first imaging section, and a second imaging section. The hand-held image display apparatus detects a marker from a real world image shot by at least one of the first imaging section and the second imaging section, and determines the relative positions of a virtual object and a pair of virtual cameras with respect to each other in a virtual space, based on the result of the detection. Then, the hand-held image display apparatus superimposes virtual space images drawn based on the first virtual camera and the second virtual camera, onto the real world images shot by the first imaging section and the second imaging section, and displays images that are stereoscopically visible by naked eyes, on the stereoscopic display apparatus. | 08-08-2013 |
20140164181 | COMPUTER-READABLE STORAGE MEDIUM, INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING SYSTEM, AND INFORMATION PROCESSING METHOD - Example systems and methods involve an information processing apparatus configured to transmit transmission data to one or more of a plurality of other information processing apparatuses, the transmission data including icon-related data for an icon associated with content data executed by the information processing apparatus. The information processing apparatus is also configured to receive reception data from one or more of the plurality of other information processing apparatuses, the reception data from each respective other information processing apparatus including icon-related data for an icon associated with content data executed by the respective other information processing apparatus. The information processing apparatus cumulatively stores icon-related data included in the reception data received from the one or more of the plurality of other information processing apparatuses. | 06-12-2014 |
20140194189 | COMPUTER-READABLE STORAGE MEDIUM, INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING SYSTEM, AND INFORMATION PROCESSING METHOD - Example systems and methods involve an information processing apparatus configured to transmit transmission data to one or more of a plurality of other information processing apparatuses, the transmission data including identification information for content data executed by the information processing apparatus. The information processing apparatus is also configured to receive reception data from one or more of the plurality of other information processing apparatuses, the reception data from each respective other information processing apparatus including identification information for content data executed by the respective other information processing apparatus. The information processing apparatus accesses purchase information associated with purchasing content data corresponding to at least one piece of identification information included in the reception data received from the one or more of the plurality of other information processing apparatuses. | 07-10-2014 |