Patent application number | Description | Published |
20110176830 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - According to one embodiment, a method of setting, when at least one of image forming units does not perform image formation, an electric field between an image carrier and a transfer device of the image forming unit which does not perform the image formation to have the same direction as that of an electric field between the image carrier and the transfer device which perform the image formation and have a lower strength can be obtained. | 07-21-2011 |
20110188892 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image carrier whose surface is moved in a specific direction, a charging device to charge the image carrier, an exposure device to form an electrostatic latent image by exposing a surface of the charged image carrier in accordance with an image signal, a developing device to supply a developer to the surface of the image carrier on which the electrostatic latent image is formed, a transfer device to transfer a developer image formed on the surface of the image carrier onto an image forming medium, and a dielectric member that has a dielectric constant of 5 or less and is disposed near the image carrier and between the charging device and the exposure device, in which the charging device, the exposure device, the developing device and the transfer device are sequentially arranged around the image carrier along the movement direction of the surface of the image carrier. | 08-04-2011 |
20110311252 | IMAGE FORMING APPARATUS, RESISTANCE MEASURING DEVICE OF RECORDING MEDIUM, AND RESISTANCE MEASURING METHOD - An image forming apparatus according to an embodiment includes: an image carrier; a transfer device which transfers a toner image formed on the image carrier onto a recording medium; a resistance measuring device which causes a current to flow through the recording medium before transferring the toner image and measures the resistance of the recording medium; and a setting unit which sets a condition of the transfer on the basis of the measurement result of the resistance of the recording medium. The resistance measuring device includes an electric shock prevention member which prevents the current from flowing to a user through the recording medium during the measurement of the resistance of the recording medium. | 12-22-2011 |
20120293824 | IMAGE FORMING APPARATUS AND SHEET JAM TREATMENT METHOD FOR THE IMAGE FORMING APPARATUS - The image forming apparatus according to the embodiment includes a display section configured to display information or an inquiry, an input section configured to receive an input from the operator; and a control section configured to display, when the sheet jam occurs, an inquiry concerning a situation of the occurrence of the sheet jam on the display section and a method to eliminate a cause of the sheet jam estimated on the basis of input in response to the displayed inquiry. | 11-22-2012 |
20120321350 | IMAGE FORMING APPARATUS - According to one embodiment, an image forming apparatus includes an image forming portion configured to selectively form a toner image on an image bearing member using a developing device including a decolorizable toner or a developing device including an undecolorizable toner, a transfer portion configured to transfer the toner image, which is formed on the image bearing member, onto a transfer material, and a fixing portion configured to fix the toner image, which is transferred by the transfer portion, on the transfer material. The undecolorizable toner has at least a fixing temperature range in a range equal to or higher than a fixing temperature lower limit of the decolorizable toner and lower than decoloring temperature of the decolorizable toner. | 12-20-2012 |
20130011149 | IMAGE FORMING APPARATUS AND METHOD FOR CONTROLLING IMAGE FORMING APPARATUS, WHICH INCLUDES FIXING AND DECOLORIZING SECTION - An image forming apparatus includes a count section configured to count time during which no image forming is performed and a control section configured to allow heating of a heat generating section at temperature for decolorizing after the time counted by the count section reaches the a predetermined threshold time. | 01-10-2013 |
20140044458 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image carrier whose surface is moved in a specific direction, a charging device to charge the image carrier, an exposure device to form an electrostatic latent image by exposing a surface of the charged image carrier, a developing device to supply a developer to the image carrier on which the electrostatic latent image is formed, a transfer device to transfer a developer image formed on the surface of the image carrier onto an image forming medium, and a dielectric member that extends from the charging device to the vicinity of the image carrier and is disposed between the charging device and the image carrier surface part exposed by the exposure device, in which the charging device, the exposure device, the developing device and the transfer device are sequentially arranged around the image carrier along the movement direction of the surface of the image carrier. | 02-13-2014 |
20140286675 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image carrier whose surface is moved in a specific direction, a charging device to charge the image carrier, an exposure device to form an electrostatic latent image by exposing a surface of the charged image carrier, a developing device to supply a developer to the image carrier on which the electrostatic latent image is formed, a transfer device to transfer a developer image formed on the surface of the image carrier onto an image forming medium, and a dielectric member that extends from the charging device to the vicinity of the image carrier and is disposed between the charging device and the image carrier surface part exposed by the exposure device, in which the charging device, the exposure device, the developing device and the transfer device are sequentially arranged around the image carrier along the movement direction of the surface of the image carrier. | 09-25-2014 |
20140376939 | IMAGE FORMING APPARATUS AND METHOD FOR CONTROLLING IMAGE FORMING APPARATUS, WHICH INCLUDES FIXING AND DECOLORIZING SECTION - An image forming apparatus includes a count section configured to count time during which no image forming is performed and a control section configured to allow heating of a heat generating section at temperature for decolorizing after the time counted by the count section reaches the a predetermined threshold time. | 12-25-2014 |