Patent application number | Description | Published |
20100303498 | IMAGE FORMING APPARATUS - An image forming apparatus includes a belt including an abutting surface and a cleaning member disposed to abut against the abutting surface for removing a foreign substance on the abutting surface. The abutting surface has a mirror surface smoothness of 40 to 200, and a pensile hardness of 2H to 7H. | 12-02-2010 |
20110142463 | BELT DEVICE, TRANSFERRING UNIT AND IMAGE FORMING DEVICE - A belt device includes an endless belt including at least a base layer and a coat layer, the coat layer formed on the base layer and configuring an upper most surface of the belt; a driving member that rotates the belt and that is provided at one end of the belt to bias an inner circumferential surface of the belt; and a driven member that rotates the belt and that is provided at other end of the belt to bias the inner circumferential surface of the belt. Wherein the base layer has a mirror specularity of 20-60. | 06-16-2011 |
20110226588 | TRANSPORTATION UNIT AND IMAGE FORMING APPARATUS - A transportation unit includes a transportation member and a cleaning member for cleaning foreign matters attached to a surface of the transportation member. The transportation member has the surface with a contact angle θ relative to n-dodecane between 10° and 45° (10°≦θ≦45°) and a mirror index M between 60 and 200 (60≦M≦200). | 09-22-2011 |
20120224892 | BELT UNIT AND IMAGE FORMING APPARATUS - A belt unit includes a belt whose surface has critical surface tension in a range from 15 N/m to 36 N/m, and a plurality of rollers around which the belt is stretched. With such a configuration, high image quality can be obtained. | 09-06-2012 |
20130051838 | ROTATING BODY, TRANSFER UNIT, AND IMAGE FORMING APPARATUS - A rotating body for use in an image forming apparatus has an outer surface in which one or more grooves are formed. The one or more grooves are oriented at an angle greater than 0° and less than 90° with respect to a longitudinal direction of the rotating body. | 02-28-2013 |
20150139703 | BELT,TRANSFER BELT, TRANSFER BELT UNIT, AND IMAGE FORMATION APPARATUS - A belt formed of a single resin layer and having cavities within the resin layer. The belt may be a transfer belt that is arranged opposed to an image carrier which carries a developer image on a surface, and in which the developer image is transferred thereon from the image carrier. | 05-21-2015 |
20150160588 | IMAGE FORMING APPARATUS - An image forming apparatus includes: a plurality of rollers including a first roller rotated by receiving rotation from a drive unit and a second roller rotated with the rotation of the first roller; a belt stretched around the plurality of rollers, the belt having an inner surface; and a tension applying unit that applies tension to the belt. The inner surface of the belt has an uneven shape. Each of at least one roller of the plurality of rollers satisfies conditions expressed by μkmax≦0.73 and Δμk=(μkmax−μkmin)≦0.51, where μkmax is a maximum dynamic friction coefficient between the inner surface of the belt and the roller, and μkmin is a minimum dynamic friction coefficient between the inner surface of the belt and the roller. | 06-11-2015 |
20150277301 | TRANSFER BELT, TRANSFER BELT UNIT, AND IMAGE FORMATION APPARATUS - A transfer belt used in an image formation apparatus is provided with surface characteristics that Vickers hardness of an outer peripheral surface of the transfer belt is within a range between being equal to or above 39 N/mm | 10-01-2015 |