Patent application number | Description | Published |
20090060540 | IMAGE FORMING DEVICE - An intermediate transfer tandem type image forming device which has multiple first stage transfer units set parallel and a single power unit which simultaneously applies bias to the multiple first stage transfer units. When executing successive printing or both-sides printing and there is a need to change the bias value of the first stage transfer bias due to a mix of multiple types of recording media, the device is able to hold down electricity consumption, sustain image quality, and form images productively. When executing successive printing or both-sides printing, the application timing of the changed transfer bias due to the detection of a different recording medium to that of the initial medium is placed after the previous first stage transfer of a final color toner image is completed. | 03-05-2009 |
20090190949 | IMAGE FORMING APPARATUS - An image forming apparatus enables a high-quality double-side printing of a transfer medium by one-pass method using a simple structure. A latent image is formed and developed on an image carrier (drum) in a process cartridge. A resultant toner image is transferred by a first transfer unit (roller) onto either an upper surface of the transfer medium or a first intermediate transfer body (roller) in a first transfer area. The toner image on the first intermediate transfer body is transferred onto a back surface of the transfer medium in a fourth transfer area via a second intermediate transfer body (belt) and a third intermediate transfer body (roller). The fourth transfer area is located downstream of the first transfer area along a transport path of the transfer medium. | 07-30-2009 |
20090238585 | IMAGE FORMING APPARATUS - An image forming apparatus, forming a color image by successively superposing color images, formed on image carriers of corresponding image forming parts arranged along a rotational direction of an endless moving member, onto the endless moving member or a recording medium conveyed thereby, includes a first part causing a color registration pattern to be created on the endless moving member or the recording medium; a second part obtaining a color registration pattern signal by detecting the color registration pattern; a third part changing image formation timing in the image forming parts based on the color registration pattern signal; and a fourth part causing the endless moving member to rotate in forward and reverse directions after the creation of the color registration pattern. The second part obtains the color registration pattern signal by detecting the color registration pattern during each of the forward and reverse rotations of the endless moving member. | 09-24-2009 |
20090279909 | IMAGE FORMING APPARATUS AND CONTROL METHOD THEREFOR - An image forming apparatus includes an exposure mechanism to form a latent image by exposure, a latent-image carrier to hold the latent image, a charging mechanism to charge the latent-image carrier evenly, a development device to develop a latent image on the latent-image carrier into a toner image, a transfer mechanism to transfer the toner image formed on the latent-image carrier onto a transfer material, at least one asperity profile reading mechanism to read an asperity of an entire image area of the transfer material at least in a width direction thereof onto which a toner image is to be transferred, and a control mechanism to adjust a toner adhesion amount of the toner image transferred to the transfer material in accordance with a localized asperity of a surface of the transfer material read by the asperity profile reading mechanism. | 11-12-2009 |
20090324270 | IMAGE FORMING APPARATUS AND CONTROL METHOD THEREFOR - An image forming apparatus includes an image carrier, an exposure mechanism, a latent-image forming mechanism, at least one image forming mechanism including a development mechanism to develop the latent image, an intermediate transfer member disposed to contact the image carrier, a primary transfer mechanism to transfer a toner image on the image carrier and superimpose one toner image on another on the intermediate transfer member, a secondary transfer mechanism to transfer the toner image superimposed on the intermediate transfer member onto a transfer material, an asperity detector to detect an asperity profile of a surface of the transfer material to identify a concavity of the transfer material, and a toner adhesion control mechanism to increase an amount of the toner transferred to intermediate transfer member according to the concavities in the surface of the transfer material identified by an asperity detector, after a predetermined time elapses. | 12-31-2009 |
20110008069 | IMAGE FORMING APPARATUS - An image forming apparatus including a latent image bearing member, a charger, an irradiator, a developing member, a transfer device, and a surface potential equalizer. The transfer device includes an intermediate transfer member comprising a high-resistivity body having a surface resistivity of 10 | 01-13-2011 |
20110249994 | CONDUCTIVE COMPOSITION, ELECTROPHOTOGRAPHIC BELT, IMAGE FORMING APPARATUS, AND METHOD OF MANUFACTURING CONDUCTIVE COMPOSITION - A conductive composition including a matrix resin comprising a thermoplastic resin, a conductive agent comprising a carbon black having an amine value of 1 to 100 mgKOH/g, and a stiffening agent comprising an acid anhydride, a carboxylic acid, or a compound having an epoxy group. | 10-13-2011 |
20120294657 | BELT-SHAPED MEMBER FOR IMAGE FORMING APPARATUS AND IMAGE FORMING APPARATUS - A belt-shaped member for image forming apparatus, satisfying the following relationships: | 11-22-2012 |
20140243465 | RESIN COMPOSITION, SEAMLESS BELT, AND IMAGE FORMING APPARATUS - Provided is a resin composition including at least: polyolefin in an amount of from 50% by mass to 90% by mass; an electro-conductive agent; and a compound represented by General Formula (1) below, | 08-28-2014 |
20150014602 | INTERMEDIATE TRANSFERER AND IMAGE FORMING APPARATUS - An intermediate transferer includes a polyvinylidene fluoride resin including polyvinylidene fluoride and a vinylidene fluoride-hexafluoropropylene copolymer, a conductive agent and an additive. The additive includes a polymer including a polyalkyleneoxide structure having a number-average molecular weight not less than 1,000. The polyvinylidene fluoride resin includes the vinylidene fluoride-hexafluoropropylene copolymer in an amount of from 5 to 30 parts by weight per 100 parts by weight of the polyvinylidene fluoride. The intermediate transferer includes the conductive agent in an amount of from 1.0 to 20 parts by weight and the additive in an amount of from 1.0 to 10 parts by weight per 100 parts by weight of the polyvinylidene fluoride resin. | 01-15-2015 |
20150078791 | INTERMEDIATE TRANSFER MEMBER AND IMAGE FORMING APPARATUS - An intermediate transfer member, including:
| 03-19-2015 |