Abstract: An image forming method includes the steps of supplying a toner onto a surface of a toner carrier to form a toner pattern injected with static charge by controlling the toner mass and amount of the static charge using a toner supply control member disposed in abutment with the toner carrier and supplied with a voltage corresponding to an image information signal, transferring the toner pattern onto a conveying member by a first electric field formed between the toner carrier and the conveying member, transcribing by a second electric field the toner pattern on the conveying onto a sheet of plain paper transported by a transcribing belt, fixing the toner pattern to the sheet of plain paper to produce a fixed image thereon. The method is capable of forming an image on any paper at a low running cost and low costs of apparatus.

Abstract: Apparatus for creating powder images. An image forming member and a toner delivery system are supported opposite each other. The images are formed by the image forming member along a first direction. The toner delivery system includes a toner transport for moving toner particles from a supply to a zone opposite the image forming member. The transport moves along a second direction which is non-parallel to the first direction.

Abstract: A method and device for improving the printing performance of electrographic printers, in which a latent electrical charge pattern of electric signals is produced by an electrode matrix or the like, which temporarily produces electrical fields for attraction of pigment particles toward an information carrier. The electrodes of the electrode matrix are exposed, during at least a portion of the time between the printing of subsequent paper sheets, to a cleaning force which removes the pigment particles from the electrode matrix.

Abstract: An image forming apparatus including a latent image carrying member moving while carrying an electrostatic latent image on a surface thereof; a developer supplying member for supplying a developer to a whole electrostatic latent image on the surface of the latent image carrying member including an image area and a non-image area; a charging member for charging the developer on the surface of the latent image carrying member; and a developer recovering member for recovering a portion of the developer adhering to the non-image area of the surface of the latent image carrying member.

Abstract: A developing unit incorporated in an image forming apparatus and capable of transporting a developer or a toner deposited on a developing roller in a predetermined direction without rotating the developing roller, or developer carrier. The developing roller has an unrotatable base roller, a stationary body provided on the base roller and made of an insulating material, and a plurality of drive electrodes buried in the stationary body. The drive electrodes are divided into three electrode groups. Voltages whose polarities change at predetermined intervals are applied to the three electrode groups, causing the toner to be transported by the coaction of the charge of the toner and the charges of the drive electrodes. The drive electrodes are arranged at a pitch which is substantially one-third of the particle size of the toner, so that the toner may be deposited on the developing roller substantially without any clearance.

Abstract: In an image recording apparatus in which toner carried on a toner carry roller is supplied to an aperture electrode in contact with the aperture electrode, the aperture electrode is elastically supported through an electrode supporter formed of elastomer such as rubber, and the toner carry roller is designed in a barrel shape. Therefore, the contact pressure between the aperture electrode and the toner carry roller is constant over all positions due to the expanding action of the electrode supporter and the toner is uniformly supplied to all the apertures of the aperture electrode. As a result, a uniform-density toner image can be formed over all the positions.

Abstract: An image forming apparatus comprises includes a feeder means and recorder. The feeder feeds a sheet of recording paper to a predetermined position in response to a spare paper feed signal instructing the feeding of the sheet of recording paper to the predetermined position preliminarily, and then feeds the sheet of recording paper being stopped at the predetermined position again in response to a record request signal. The recorder records an image on the sheet of recording paper fed by the feeder means through an electrophotographic process. The recorder means starts preparation to execute the electrophotographic process upon receiving the spare paper feed signal. As a result, throughput is increased without causing other problems.