Patent application number | Description | Published |
20130251424 | FIXING APPARATUS AND IMAGE FORMING APPARATUS INCLUDING THE FIXING APPARATUS - A fixing apparatus includes a roller, a first unit configured to heat the roller, the first unit including a first tubular film, a heating portion forming member to form a heating portion with the roller, and a first guide member dotted with first protruding portions contacting the inner surface of the first tubular film, and a second unit configured to form a nip portion with the roller, the second unit including a second tubular film, a nip portion forming member to form the nip portion with the roller, and a second guide member dotted with second protruding portions contacting the inner surface of the second tubular film, wherein there is a non-overlapping area between the first protruding portions and the second protruding portions in a generatrix direction of the roller. | 09-26-2013 |
20140003847 | FIXING DEVICE | 01-02-2014 |
20140023413 | IMAGE HEATING APPARATUS - The image heating apparatus, for heating a toner image while conveying a recording material bearing the toner image at a nip portion, includes a rotary member in contact with the toner image, an endless belt, and a nip portion forming member that is in contact with the inner surface of the belt and forms the nip portion together with the rotary member via the belt. The nip portion forming member is a metal member having a surface which is in contact with the inner surface of the belt and on which an oxide layer is formed by an alumite treatment. | 01-23-2014 |
20140153950 | IMAGE FORMING APPARATUS - An image forming apparatus configured to form a toner image on a recording material, includes: an image forming unit configured to form a unfixed toner image on the recording material; a fixing unit configured to heat the recording material where the unfixed toner image is formed while conveying the recording material using a nip portion, and to fix the unfixed toner image on the recording material; and a control unit configured to perform control so that temperature of the fixing unit is maintained in target temperature, with the target temperature (T | 06-05-2014 |
20140308052 | FIXING APPARATUS - In one aspect of the invention, a fixing apparatus that heats a recording material having a toner image while conveying the recording material at a nip portion to make the toner image fix onto the recording material includes a cylindrical belt having a heat generating layer that generates heat by being energized and a contact for supplying electricity to the heat generating layer. The contact is in contact with one of an outer surface and an inner surface of an end of the belt in the generatrix direction of the belt. An electrically conductive layer is provided, along the direction of rotation of the belt, on a surface of the heat generating layer opposite to a surface of the heat generating layer at which the contact is present. | 10-16-2014 |
20140314437 | IMAGE FORMING APPARATUS - An image forming apparatus includes: an image forming portion; a fixing portion; a first air blowing portion; and a second air blowing portion. The apparatus is operable in a first air blowing mode in which both the first and second air blowing portions are driven and in which the direction of the air near the exit is the recording material feeding direction, and is operable in a second air blowing mode in which both the first and second air blowing portions are driven and in which a direction of the air near the exit is a recording material feeding direction and a speed of the air is lower than a speed of the air in the first air blowing mode or in which the direction of the air near the exit is the opposite direction to the recording material feeding direction. | 10-23-2014 |
20140314458 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image forming portion; and a fixing portion. The fixing portion includes a cylindrical film, a nip-forming member and a roller including a shaft portion and an elastic layer. The elastic layer contacts an outer surface of the film except an end region of the film with respect to a generatrix direction. In the end region, the shaft portion and the outer surface of the film oppose each other with a spatial region with respect to a radial direction of the shaft portion. The image forming apparatus includes a spacer occupying at least a part of the spatial region. | 10-23-2014 |
20150063885 | FILM AND IMAGE HEATING DEVICE USING FILM - A cylindrical film used in an image heating device heating a recording material, on which an image has been formed, has a resin layer, this resin layer being made from a resin in which a crystalline resin and an amorphous resin having a higher glass transition temperature than the crystalline resin are blended, wherein a volume ratio of the crystalline resin with respect to the amorphous resin in the resin layer is 70/30 to 99/1. | 03-05-2015 |