Class / Patent application number | Description | Number of patent applications / Date published |
399148000 | Combined or plural functions by single component | 11 |
20130149007 | IMAGE FORMING APPARATUS - An image forming apparatus of the present invention includes: a developing section which includes a developer bearing member which bears toner to be supplied to an image bearing member on which an electrostatic latent image is formed; and a developer regulating section which regulates a layer thickness of the toner borne by the developer bearing member, the developer regulating section being electrically connected to the charger case, the developer regulating section being at least partially electroconductive. | 06-13-2013 |
20140105643 | IMAGE FORMING APPARATUS HAVING A BRUSH MEMBER - An image forming apparatus includes an image bearing member for carrying a toner image, a movable intermediary transfer member for receiving the toner image from the image bearing member, a primary transfer member for primary transfer of the toner image from the image bearing member onto the intermediary transfer member, a secondary transfer member for being supplied with a voltage and for secondary transfer of the toner image from the intermediary transfer member onto a transfer material, and a first toner charging member. A first charging member rubs a surface of the intermediary transfer member with movement thereof, and a second charging member moves in contact with the intermediary transfer member, thereby transferring toner remaining on the intermediary transfer member after the secondary transfer back to the image bearing member from the intermediary transfer member simultaneously with the primary transfer at the primary transfer station. | 04-17-2014 |
399149000 | Development and cleaning | 9 |
20080212998 | TANDEM IMAGE FORMING DEVICE AND IMAGE FORMINGAPPARATUS INCLUDING THE SAME - A method of arranging a plurality of image forming sections, each of which includes a developing device and a cleaning device. The method includes arranging the plurality of image forming sections side by side along an inclined image carrier; and positioning the cleaning device above the developing device of other image forming sections in one of nearby ones of the plurality of image forming sections. | 09-04-2008 |
20090169258 | Image Forming Apparatus - An image forming apparatus includes a plurality of photosensitive members which are aligned along a conveying direction of a transfer medium and on each of which an electrostatic latent image is to be formed; a plurality of developing units which supply a plurality of colors of developing agent to the photosensitive members, respectively; and a plurality of cleaning rollers which slidably contact the photosensitive members to collect at least one of paper powder and developing agent adhering to surfaces of the photosensitive members, respectively. A most upstream cleaning roller which slidably contacts a most upstream photosensitive member in the conveying direction is provided with a paper powder absorption shaft which attracts and absorbs paper powder from the cleaning roller. A most downstream cleaning roller which slidably contacts a most downstream photosensitive member in the conveying direction is not provided with the paper powder absorption shaft. | 07-02-2009 |
20090311006 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image carrier, a charging unit including a charge member that is disposed facing the image carrier across a gap therebetween and charges the image carrier by using electrical discharge caused by applying thereto a voltage including an alternating current component superimposed on a direct current component, a latent image forming unit, a developing unit to supply toner for developing the latent image formed on the image carrier into a toner image and to collect residual toner remaining on the image carrier, a transfer unit, and a toner spreading member to spread toner on the image carrier and disposed upstream from the charging unit in a direction of movement of the image carrier and downstream from the transfer unit in the direction of movement of the image carrier. | 12-17-2009 |
20100098460 | FIXING DEVICE AND IMAGE FORMATION APPARATUS THAT EFFICIENTLY REMOVES RESIDUAL TONER ON INTERMEDIATE TRANSFER BELT - Disclosed is an image formation apparatus for forming an image by transferring, onto a recording sheet, a toner image that has been transferred from an image carrier onto an intermediate transfer belt | 04-22-2010 |
20110158692 | Image Forming Apparatus and a Method of Cleaning Photosensitive Drum Surface - An image forming apparatus is configured to execute the steps including: a step of controlling a photosensitive drum and a developing roller such that the developing roller rotates in a predetermined direction and the photosensitive drum rotates in a reverse direction; and a step of controlling the photosensitive drum and the developing roller such that the developing roller stops and the photosensitive drum rotates in the reverse direction, so as to reduce toner filming. | 06-30-2011 |
20110236071 | Image Forming Apparatus - An image forming apparatus comprising: a photosensitive drum having a circumferential surface, on which a developer image is formed; a transfer member configured to transfer the developer image from the circumferential surface of the photosensitive drum to a recording medium conveyed along the conveying path in a conveying direction; a collecting member; and a motor capable of performing a forward rotation and a reverse rotation; wherein, based on a timing when a portion of the circumferential surface of the photosensitive drum faces an upstream side edge of the developer image on the recording medium in the conveying direction, a time elapsed until the motor is stopped to change from performing the forward rotation to the reverse rotation is longer than a time elapsed until the portion of the circumferential surface of the photosensitive drum that faced the upstream side edge of the developer image faces the collecting member. | 09-29-2011 |
20150117903 | Image Forming Apparatus Employing Cleanerless System - A image forming apparatus includes a developing roller and a photosensitive drum configured to rotate about a first axis, and has a peripheral surface. The developing roller is configured to contact the photosensitive drum and is configured to supply developer to the photosensitive drum by rotating about a second axis positioned lower than the first axis in a vertical direction to form a visible image on the peripheral surface. Extraneous matter on the peripheral surface is recovered only by the developing roller. | 04-30-2015 |
20160026118 | CARTRIDGE AND IMAGE FORMING APPARATUS - An image forming apparatus includes: an image bearing member; a charging member for electrically charging the image bearing member in contact with the image bearing member; and a developing member for supplying developer in contact with the image bearing member. The developer remaining on the image bearing member after transfer is collected by the developing member. A Martens hardness HMR of a surface of the charging member and a Martens hardness HMD of a surface of the developer satisfy the following relationship: | 01-28-2016 |
20160054676 | IMAGE FORMING APPARATUS - A collection sequence, according to the present invention, is executed by controlling the charging bias to the first charging bias in such a manner that the difference ΔV | 02-25-2016 |