Patent application number | Description | Published |
20110116844 | IMAGE FORMING APPARATUS OR TRANSFER ROLLER USED IN IMAGE FORMING APPARATUS - An image forming apparatus includes a transfer roller. The transfer roller includes an elastic layer disposed on a metal core bar. The elastic layer is made of a non-foamed solid rubber. The surface of the elastic layer includes a plurality of convex portions extending in a line in the axis direction of the transfer roller. | 05-19-2011 |
20110177450 | TONER IMAGE FIXING METHOD - A toner image fixing method reduces energy consumed in a fixing step in an electrophotographic image forming apparatus. A photopolymerization composition is coated on an unfixed toner image formed on a recording medium. Then, the photopolymerization composition is irradiated with light, which does not have an emission wavelength band in a far infrared range and which has a maximum emission wavelength of 360 nm or longer to 420 nm or shorter, by using an LED, whereby the photopolymerization composition is cured and the unfixed toner image is fixed to the recording medium. | 07-21-2011 |
20120027479 | ROTATABLE IMAGE HEATING MEMBER AND IMAGE HEATING DEVICE - An image heating device includes a rotatable image heating member including an elastic layer and a surface layer in which a filler is dispersed; and a fixed pressing member which is contacted to a surface of the rotatable image heating member and forms a nip, between itself and the rotatable image heating member, in which a recording material for carrying an image is to be nip-conveyed. The surface of the rotatable image heating member has a shape such that projections are distributed by the filler so that a coefficient of dynamic friction μ(hot) relative to said fixed pressing member when a surface temperature of the rotatable image heating member is a temperature during image heating and a coefficient of dynamic friction μ(cold) relative to the fixed pressing member when the surface temperature is a normal temperature satisfy, | 02-02-2012 |
20120231390 | METHOD OF FIXING TONER IMAGE - Energy consumption in a fixing process of an electrophotographic image-forming apparatus is reduced. An unfixed toner image T | 09-13-2012 |
20130121736 | IMAGE HEATING DEVICE - An image heating device includes an endless belt including a base layer and an elastic layer formed around the base layer, a contact member contacting an inner surface of the endless belt, a pressure rotating member forming a nip portion configured to convey a recording material while nipping the recording material along with the contact member via the endless belt, wherein an image formed on the recording material is heated at the nip portion using heat from the endless belt, and wherein one end of the endless belt is coated with the elastic layer and the other end of the endless belt is not coated with the elastic layer, and a belt lateral shifting direction regulating mechanism configured to regulate a direction in which the endless belt shifts when the endless belt is rotated, toward the end coated with the elastic layer. | 05-16-2013 |
20130272762 | IMAGE HEATING APPARATUS - The image heating apparatus includes an endless belt, a roller which contacts an outer face of the belt, a nip portion forming unit which contacts an inner face of the belt, and forms a nip portion with the roller, for nipping and conveying a recording material, the nip portion forming unit including a component which is longer than the belt in a generatrix direction of the belt; and a regulation portion provided to oppose an end face of the belt, for regulating a shift movement of the belt to the generatrix direction of the belt, wherein the regulation portion is integrally-molded with the component. Thereby, a damage of the end of the endless belt can be reduced. | 10-17-2013 |
20130279930 | IMAGE FORMING APPARATUS - An image forming apparatus includes a toner carrying member for carrying a toner; an image carrying member on which a toner image is formed with the toner; and a plurality of divided electrode portions provided at a position in which the electrode portions oppose the toner carrying member via the image carrying member interposed therebetween. The electrode portions are supplied with a voltage on the basis of image information to move the toner between the toner carrying member and the image carrying member thereby to form the toner image. The electrode portions includes a first electrode portion for forming an image portion and a second electrode portion, adjacent to the first electrode portion, for forming a non-image portion. The image forming apparatus further includes a controller for variably controlling at least one of potential differences |Vp−Vt| and |Vt−V0| depending on the image information, where a potential of the toner carrying member is Vt, a potential of the first electrode portion is Vp and a potential of the second electrode portion is V0. | 10-24-2013 |