| Patent Number |
Title Of Patent |
Date Issued |
| 7419756 |
Dry toner, method for manufacturing the same, image forming apparatus, and image forming method |
September 2, 2008 |
| A dry toner contains fine particles having average sphericity of 0.93 to 0.99, a content of the fine particles having a particle diameter of 2 .mu.m or less in the dry toner is 20% by number or less. A method for manufacturing a dry toner includes a process for dispersing in an aqueous |
| 7400844 |
Image forming apparatus and process cartridge with a cleaner for removing toner from an image be |
July 15, 2008 |
| An image forming apparatus including a latent image bearing member, a charger, a latent image forming device, a developing device, a surface moving member, a transfer device, a cleaner having a cleaning blade and an irradiating device configured to discharge the latent image bearing |
| 7396630 |
Toner, developer including the toner, and method for fixing toner image |
July 8, 2008 |
| A toner composition including toner particles including a binder resin including a modified polyester resin, and a second resin having a weight average molecular weight of from 2,000 to 10,000; a colorant; a release agent; and a particulate material which is present at least a surface |
| 7386257 |
Imaging apparatus, and toner and process cartridge used in the imaging apparatus |
June 10, 2008 |
| An imaging apparatus that is capable of realizing good cleaning characteristics and transfer characteristics, and obtaining a high quality image using toner having a high average roundness is provided. The imaging apparatus includes an image carrier, a charge unit, a developing unit, |
| 7384720 |
Toner for developing latent electrostatic image, container having the same, developer using the |
June 10, 2008 |
| A toner for developing a latent electrostatic image including a base of toner particle which contains a binder resin and a coloring agent, and an external additive. Herein, a plurality of the base of toner particle has a volume average particle diameter (Dv) of 3 .mu.m to 7 .mu.m, a rati |
| 7378213 |
Image forming process and image forming apparatus |
May 27, 2008 |
| A process contains in which heating and fixing an image of a toner on a recording medium is performed by heating one or more heat-transfer media by a heating element, and pressing the recording medium bearing the toner image to one of the heat-transfer media. At least one of the heat |
| 7374851 |
Toner, and, developer, toner container, process cartridge, image forming apparatus and image for |
May 20, 2008 |
| A toner which includes a toner material, wherein the toner satisfies the following formula: 0.degree. C..ltoreq..DELTA.Tm.ltoreq.20.degree. C. where .DELTA.Tm represents Tma (.degree. C.)-Tmb (.degree. C.), Tma (.degree. C.) is 1/2 flown-out temperature of the toner by a capillary ty |
| 7373101 |
Method and apparatus for image forming and effectively applying lubricant to an image bearing me |
May 13, 2008 |
| A lubricant supplying device including a molded lubricant having a Martens hardness of approximately 40 N/mm.sup.2 to approximately 70 N/mm.sup.2 measured with a test force of 50 mN and a load-applying period of 30 seconds, a rotative member including a fibrous brush of a thickness of |
| 7337654 |
Method of forming a needle for auto-sampler |
March 4, 2008 |
| In a method of forming a needle for an auto-sampler successively collecting liquid samples from plural sample containers, a parent material forming the needle is coated with a coating material having a chemical activity small than that of the needle. Then, the coated parent material |
| 7333744 |
Image forming apparatus that charges a photosensitive member by superimposing an alternate curre |
February 19, 2008 |
| A charge apparatus charges by uniformly superimposing an alternate current bias voltage with a fixed frequency over a direct current bias voltage as the charge bias voltage on a photosensitive member. An exposure apparatus exposes the surface of the charged photosensitive member based on |
| 7323281 |
Toner, developer including the toner, container containing the toner or the developer and method |
January 29, 2008 |
| A toner comprising toner particles comprising a first binder resin; a second binder resin different from said first binder resin and having a glass transition temperature of from 40 to 55.degree. C.; a colorant; and a release agent, and a particulate resin material which is located on |
| 7318989 |
Toner, developer, toner container, process cartridge, image forming apparatus, and image forming |
January 15, 2008 |
| To provide a toner that can provide long-term removability and high-definition images with reduced image layer thickness and densely-packed toner particles, a developer capable of forming high-quality images using the toner, a toner container for containing the toner, a process cartr |
| 7313353 |
Fixing unit with heat-resisting resin base member and image forming toner for use in the fixing |
December 25, 2007 |
| A belt fixing unit, an image forming apparatus, and a toner material are disclosed capable of obviating undesirable fixing belt deformation and low image quality. The belt fixing unit includes a fixing roller, a heating roller, a fixing belt, and a pressing roller in contact with the |
| 7313347 |
Cleaning device, process cartridge, image forming apparatus and toner |
December 25, 2007 |
| A cleaning device, a process cartridge, an image forming apparatus, and toner to maintain improved cleaning performance for a long time. The cleaning device includes a cleaning blade, a lubricant applying part, and a toner removing part. The cleaning blade is disposed in contact with a |
| 7303847 |
Dry toner |
December 4, 2007 |
| A dry toner is provided that is prepared by a method including the steps of (A) dissolving or dispersing a toner composition in an organic solvent to prepare a toner composition liquid and (B) dispersing the toner composition liquid in an aqueous liquid which contains a binder resin |
| 7299003 |
Fixing unit and image forming apparatus providing a quick start-up and reduction in energy consu |
November 20, 2007 |
| A fixing belt is heated by electromagnetic induction. The fixing belt has a heat generating layer that has a thickness not greater than 40 .mu.m and a releasing layer that has a thickness not less than 10 .mu.m. A toner that includes at least a binder resin, a colorant, and a mold re |
| 7295796 |
Image forming apparatus having a temporary toner holding device and a toner collecting device |
November 13, 2007 |
| A cleaningless image forming apparatus of the present invention uses spherical toner grains on surfaces of which a charge control agent and/or organic fine grains are present, thereby enhancing efficient image transfer. A brush roller collects, among toner grains left on a photocondu |
| 7295756 |
Signal reproducing method and apparatus, signal recording/reproducing method and apparatus and s |
November 13, 2007 |
| By reducing the number of seek operations in an operation to play back a signal from a recording medium, the amount of data temporarily stored in a read buffer memory employed in a signal recording/playback apparatus is large enough to be output as a playback signal during a seek operati |
| 7294443 |
Toner composition and method for manufacturing the toner composition |
November 13, 2007 |
| A toner composition including toner particles including a binder resin; and a colorant, and a charge controlling agent which is at least located on a surface of the toner particles, wherein the toner composition has a spherical degree of from 0.96 to 0.99, and wherein the toner compositi |
| 7292816 |
Method and apparatus for electrophotographic image forming capable of effectively removing resid |
November 6, 2007 |
| An image forming apparatus includes an image bearing member configured to bear an electrostatic latent image on a surface thereof, a developing mechanism configured to develop the electrostatic latent image formed on the surface of the image bearing member into a toner image with toner, |
| 7272354 |
Cleaning unit and image forming apparatus having multiple cleaning blades |
September 18, 2007 |
| A cleaning unit includes a first blade and a second blade. The first blade is in contact with an image carrier or a paper carrier and removes adhered substances remained on surface of these. The second blade has an abrasive layer that is formed by including abrasive particles in an e |
| 7266324 |
Charging device, and process cartridge and image forming apparatus using the charging device |
September 4, 2007 |
| A charging device including: a charging roller having a metal cylinder and an elastic layer located on the metal cylinder; a cleaner configured to clean the charging roller, which includes an electroconductive brush roller including a roller having a shaft; and hair located overlying the |
| 7241545 |
Toner, developer using the same, toner container using the same, process cartridge using the sam |
July 10, 2007 |
| A toner has a storage elastic modulus (G') of 500 Pa or more at a frequency of 1 Hz and temperature of 180.degree. C., while the toner is obtained by dissolving or dispersing a toner composition in an organic solvent, further dispersing the solution or dispersion thereof in an aqueou |
| 7228099 |
Cleaning device for cleaning a surface of an image support body |
June 5, 2007 |
| A cleaning device, a process cartridge, an image forming apparatus and toner are disclosed to maintain improved cleaning performance for a long time. The cleaning device includes a cleaning blade, an antifriction agent coating part and a toner removing part. The cleaning blade is dis |
| 7218877 |
Charging device, and process cartridge and image forming apparatus including the charging device |
May 15, 2007 |
| A charging device including a charging roller having a metal cylinder and an elastic layer located thereon, and a cleaner for cleaning the surface of the charging roller. The cleaner includes a driving shaft and a cleaning roller which is rotatably mounted on the driving shaft. The c |
| 7217487 |
Toner, developer using the same, toner container using the same, process cartridge using the sam |
May 15, 2007 |
| A toner has a storage elastic modulus (G') of 500 Pa or more at a frequency of 1 Hz and temperature of 180.degree. C., while the toner is obtained by dissolving or dispersing a toner composition in an organic solvent, further dispersing the solution or dispersion thereof in an aqueou |
| 7157201 |
Toner for developing latent electrostatic image, container having the same, developer using the |
January 2, 2007 |
| A toner for developing a latent electrostatic image including a base of toner particle which contains a binder resin and a coloring agent, and an external additive. Herein, a plurality of the base of toner particle has a volume average particle diameter (Dv) of 3 .mu.m to 7 .mu.m, a rati |
| 7157199 |
Toner, developer including the toner, container containing the toner or the developer and method |
January 2, 2007 |
| A toner comprising toner particles comprising a first binder resin; a second binder resin different from said first binder resin and having a glass transition temperature of from 40 to 55.degree. C.; a colorant; and a release agent, and a particulate resin material which is located on |
| 7149465 |
Cleaning unit, process cartridge, image forming apparatus, and toner |
December 12, 2006 |
| A cleaning unit includes a cleaning blade that cleans toner on an image carrier and a brush-shaped roller that applies a lubricant of a molded lubricant on the image carrier. The brush-shaped roller is insulative, and delivers the toner cleaned by the cleaning blade to inside of the |
| 7139504 |
Charging device, and process cartridge and image forming apparatus using the charging device |
November 21, 2006 |
| A charging device including: a charging roller having a metal cylinder and an elastic layer located on the metal cylinder; a cleaner configured to clean the charging roller, which includes an electroconductive brush roller including a roller having a shaft; and hair located overlying the |
| 7133593 |
Signal reproducing method & apparatus, signal recording/reproducing method and apparatus and sig |
November 7, 2006 |
| By reducing the number of seek operations in an operation to play back a signal from a recording medium, the amount of data temporarily stored in a read buffer memory employed in a signal recording/playback apparatus is large enough to be output as a playback signal during a seek operati |
| 7130564 |
Method and apparatus for image forming capable of removing residual toner without using a toner |
October 31, 2006 |
| An image forming apparatus includes an image bearing member configured to form an electrostatic latent image on a surface thereof, and a separating mechanism configured to separate an irregular charge toner from a residual toner remaining on the surface of the image bearing member after |
| 7130524 |
Signal recording method and apparatus, signal recording / reproducing method and apparatus and s |
October 31, 2006 |
| By reducing the number of seek operations in an operation to play back a signal from a recording medium, the amount of data temporarily stored in a read buffer memory employed in a signal recording/playback apparatus is large enough to be output as a playback signal during a seek operati |
| 7129013 |
Toner and developer for developing latent electrostatic images, and image forming apparatus |
October 31, 2006 |
| A toner for developing latent electrostatic images is in the form of particles prepared by dissolving or dispersing each component of a composition in an organic solvent to form a solution or dispersion, the composition containing at least a resin reactive with a compound having an a |
| 7127204 |
Belt fixing unit with heat-resisting resin base member and image forming toner for use in the fi |
October 24, 2006 |
| A belt fixing unit, an image forming apparatus, and a toner material are disclosed capable of obviating undesirable fixing belt deformation and low image quality. The belt fixing unit includes a fixing roller, a heating roller, a fixing belt, and a pressing roller in contact with the |
| 7127151 |
Signal recording method and apparatus, signal recording/reproducing method and appparatus and si |
October 24, 2006 |
| By reducing the number of seek operations in an operation to play back a signal from a recording medium, the amount of data temporarily stored in a read buffer memory employed in a signal recording/playback apparatus is large enough to be output as a playback signal during a seek operati |
| 7110696 |
Cleaning unit, process cartridge, and image forming apparatus |
September 19, 2006 |
| A cleaning unit includes a first blade and a second blade. The first blade is in contact with an image carrier or a paper carrier and removes adhered substances remained on surface of these. The second blade has an abrasive layer that is formed by including abrasive particles in an e |
| 7092619 |
Signal recording method & apparatus, signal recording / reproducing method & apparatus and signa |
August 15, 2006 |
| By reducing the number of seek operations in an operation to play back a signal from a recording medium, the amount of data temporarily stored in a read buffer memory employed in a signal recording/playback apparatus is large enough to be output as a playback signal during a seek operati |
| 7085528 |
Cleaning unit, process cartridge, and image forming apparatus |
August 1, 2006 |
| A cleaning unit cleans residual toner on the surface of a rotatable image carrier. The cleaning unit includes a cleaning blade that is in contact with the image carrier in such a manner that amplitude of a waveform at an edge of the cleaning blade is not greater than 40 .mu.m with respec |
| 7085472 |
Signal recording method & apparatus, signal recording / reproducing method & apparatus and signa |
August 1, 2006 |
| By reducing the number of seek operations in an operation to play back a signal from a recording medium, the amount of data temporarily stored in a read buffer memory employed in a signal recording/playback apparatus is large enough to be output as a playback signal during a seek operati |
| 7065316 |
Cleaning unit, process cartridge, image forming apparatus, and toner |
June 20, 2006 |
| A cleaning unit is equipped with a cleaning blade that is in contact with a surface of a photosensitive drum and cleans the surface. A peak temperature of a loss tangent (tan .delta.) is in a range of 2.degree. C. to -30.degree. C. when a sine-wave vibration of 10 Hz is applied to the |
| 7062194 |
Charging device, and process cartridge and image forming apparatus including the charging device |
June 13, 2006 |
| A charging device including a charging roller having a metallic cylinder with an elastic layer disposed thereon, and a cleaner for cleaning the surface of the charging roller. The cleaner includes a driving shaft and a cleaning roller rotatably mounted on the driving shaft. The cleaning |
| 7056638 |
Toner for electrophotography, developer using the same, process cartridge using the same, image- |
June 6, 2006 |
| The present invention is directed to a toner for electrophotography that exhibits excellent hot offset resistance, storability, and glossiness and can obtain a high image-resolution and highly detailed images when used for energy saving apparatuses or as a color toner. The present invent |
| 7056636 |
Dry toner, and process cartridge, image forming process and apparatus using the same |
June 6, 2006 |
| A dry toner contains at least a toner binder, organic fine particles, a colorant, a wax, a charge control agent, and an external additive. The wax is concentrated in the vicinity of a toner core including the toner binder, colorant and wax. The organic fine particles adhere to the su |
| 7050741 |
Imaging apparatus, and toner and process cartridge used in the imaging apparatus |
May 23, 2006 |
| An imaging apparatus that is capable of realizing good cleaning characteristics and transfer characteristics, and obtaining a high quality image using toner having a high average roundness is provided. The imaging apparatus includes an image carrier, a charge unit, a developing unit, |
| 7033718 |
Toner and image forming apparatus using the toner |
April 25, 2006 |
| A toner including toner particles including a binder resin and a colorant, wherein particles of the toner have such a rolling property as to relatively easily roll in one direction compared to other directions. It is preferable that the toner particles preferably have a spindle form and |
| 7005223 |
Toner composition and method for manufacturing the toner composition |
February 28, 2006 |
| A toner composition including toner particles including a binder resin; and a colorant, and a charge controlling agent which is at least located on a surface of the toner particles, wherein the toner composition has a spherical degree of from 0.96 to 0.99, and wherein the toner compositi |
| 6952522 |
Recording method and apparatus for continuous playback of fragmented signals |
October 4, 2005 |
| By reducing the number of seek operations in an operation to play back a signal from a recording medium, the amount of data temporarily stored in a read buffer memory employed in a signal recording/playback apparatus is large enough to be output as a playback signal during a seek operati |
| 6947692 |
Image forming method and apparatus |
September 20, 2005 |
| A method for developing an electrostatic latent image, including forming a magnet brush of a developer including a toner and a carrier on a developing sleeve including a main magnet and auxiliary magnets; and developing the electrostatic latent image with the magnet brush to form a t |
| 6936390 |
Toner, method of producing same and image forming device |
August 30, 2005 |
| A toner for developing an electrostatic image, including a colorant, a binder resin comprising a modified polyester, and fine resin particles having a weight average particle diameter of 50 to 300 nm and being present on an outer surface of the toner, wherein the toner has a BET spec |
