Patent application number | Description | Published |
20080227000 | IMAGE FORMATION METHOD - An image formation method including charging an image bearing member; irradiating the surface of the image bearing member to form a latent electrostatic image thereon; developing the latent electrostatic image with a two component developing agent including a carrier and a toner including a mother toner particle and an external additive by a development device including a stirring and transfer device for transferring and stirring the developing agent; transferring the developed image to a transfer medium; and fixing the developed image on the transfer medium, wherein the toner includes a polyol-based resin as a binder resin, the polyol based resin having multiple hydroxyl groups in a molecular chain thereof in which the ratio (EX/OH) of epoxy group (EX) to hydroxyl group (OH) is from 0.990 to 1.010, the stirring and transfer device satisfies the following relationship (I): 1.0×10 | 09-18-2008 |
20080227003 | IMAGE FORMING METHOD AND TONER FOR DEVELOPING LATENT ELECTROSTATIC IMAGE - Disclosed is a developer containing toner and carrier, the toner containing as a binder resin a polyol resin having a plurality of OH groups in a molecule chain having an EX/OH ratio between epoxy groups (EX) and OH groups (OH) of 0.990 to 1.010. The rotational speed α, pitch β and conveyance path length γ of an stirring and conveying unit satisfies 1.0×10 | 09-18-2008 |
20080233498 | TONER, DEVELOPER, TONER CONTAINER, PROCESS CARTRIDGE, IMAGE FORMING METHOD, AND IMAGE FORMING APPARATUS - There is provided a toner which contains at least a binder resin, and filler including a layered inorganic compound, wherein the layered inorganic compound is cleaved to form particles in the toner, and the particles have a breadth of 0.5 nm to 4 nm, and a length of 10 nm to 90 nm. | 09-25-2008 |
20080268366 | TONER, AND, DEVELOPER, TONER CONTAINER, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - A toner which includes a toner material, wherein the toner satisfies the following formula: | 10-30-2008 |
20090010687 | FIXING DEVICE, AND IMAGE FORMING APPARATUS USING THE FIXING DEVICE - An image forming apparatus including an image bearing member; a charger; a light irradiator; a developing device; a transfer device; an image bearing member's cleaner; and a fixing device, wherein the fixing device includes a fixing member configured to fix a toner image upon application of heat and pressure thereto; a pressing member configured to press the recording material toward the fixing member; and a cleaning member configured to clean a surface of the fixing member and/or the pressing member, wherein the cleaning member has an outermost layer including a reactive material which increases viscoelasticity of a binder resin of the toner by reacting with the binder resin. | 01-08-2009 |
20100209841 | TONER, TONER PRODUCTION METHOD, AND IMAGE FORMING METHOD - The present invention provides a method for producing a toner including preparing an emulsified dispersion which contains emulsion particles by emulsifying or dispersing an oil phase containing at least a pigment and any one of a binder resin and a binder resin precursor in an aqueous medium, and granulating toner base particles by converging the emulsified dispersion, wherein the Casson yield value of the single oil phase before being emulsified or dispersed in the aqueous medium is 0.5 Pa to 20 Pa; and the temperature Tn of the emulsified dispersion in the preparation of the emulsified dispersion, the temperature Ts of the emulsified dispersion in the granulation of the toner base particles, and the glass transition temperature Tg of the toner base particles satisfy the relation Tn08-19-2010 | |
20110003244 | TONER, METHOD FOR PREPARING THE TONER, AND IMAGE FORMING METHOD USING THE TONER - The toner includes a binder resin; a colorant; and a release agent. The first inter-particle force Fp(A) of the toner, which is measured under an environmental condition of 23° C. and 60% RH after the toner is pressed for 1 minute at 25° C. under a compression stress of 15 kg/cm | 01-06-2011 |
20110065033 | TONER, METHOD OF FORMING IMAGES, AND PROCESS CARTRIDGE - A toner including a binder resin, a coloring agent, a releasing agent, and an additive, the releasing agent having a loss on heat of from 0.5 to 2.0% after being left at 165° C. for 10 minutes, the ratio (P2850/P828) of an absorption strength of a peak at 2,850 cm | 03-17-2011 |