| Patent application number | Description | Published |
|---|
| 20080279589 | TRANSFER UNIT AND IMAGE FORMING APPARATUS USING THE UNIT - An image forming apparatus includes a plurality of image forming units and a plurality of transfer units. The image forming units have corresponding image carriers and charging units. The image forming units form toner images of different colors on the corresponding image carriers. The transfer units face the corresponding image carriers to form transfer areas between the transfer units and the image carriers, and press a transfer member to the corresponding image carriers to transfer the toner images onto the transfer member at the transfer areas. The charging units include at least one corona-type charger and at least one contact-type charger. The image forming apparatus sets a first transfer condition for the transfer unit(s) corresponding to the image carrier(s) charged by the at least one corona-type charger and a second, separate transfer condition for the transfer unit(s) corresponding to the image carrier(s) charged by the at least one contact-type charger. | 11-13-2008 |
| 20090016784 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus, including: | 01-15-2009 |
| 20090196661 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus, including: | 08-06-2009 |
| 20100080631 | HEAT TRANSMISSION MEMBER INCLUDED IMAGE FORMING APPARATUS - An image forming apparatus for transferring and superimposing toner images formed on plural image bearers onto an endless intermediate transfer member in an electric field created between the plural image bearers and plural semi conductive transfer members internally contacting the endless intermediate transfer member. The image forming apparatus includes a heat generating member arranged inside the intermediate transfer member to generate heat. A heat transfer member is provided to transfer the heat to the plural semi conductive transfer members. | 04-01-2010 |
| 20100098446 | IMAGE FORMING APPARATUS - An image forming apparatus including a latent image carrier, a charger to evenly charge a surface of the latent image carrier, a writing device to irradiate a charged surface of the latent image carrier to form an electrostatic latent image, a writing device control unit to control the writing device, a developing device to develop the electrostatic latent image to form a toner image, a transfer device to transfer the toner image onto a transferred member, and a pre-transfer irradiating device to irradiate the charged surface of the latent image carrier during a period after development and before transfer. The writing device control unit controls the writing device based on a target image signal A and an image signal B output a single rotation of the latent image carrier after output of the target image signal A in a sub-scanning direction. | 04-22-2010 |
| 20100266300 | IMAGE FORMING APPARATUS - An image forming apparatus including multiple colored toner image forming units to form multiple colored toner images on a rotatable body, a transfer device to collectively transfer the multiple colored toner images onto a recording medium from the rotatable body, a fixing device to fix the multiple colored toner images onto the recording medium, and a light-colored toner image forming unit to form a light-colored toner image as a bottommost layer of a resultant full-color toner image formed on the rotatable body. The multiple colored toner images are sequentially superimposed on the light-colored toner image formed as the bottommost layer of the resultant full-color toner image formed on the rotatable body. A condition for forming the light-colored toner image by the light-colored toner image forming unit is set such that the light-colored toner image is not transferred onto the recording medium from the rotatable body by the transfer device. | 10-21-2010 |
