Abstract: In a method or device for dosing toner material in an electrophotographic printer or copier, toner material is introduced into at least one bucket chamber rotatably arranged in an opening at a bottom of a toner reservoir. The bucket chamber has a paddle wheel which seals the opening of the toner reservoir. As the paddlewheel rotates, toner material in the bucket chamber is conveyed into a region. The toner material conveyed from the paddlewheel is further conveyed with a screw conveyor. Also a toner reservoir is provided having a toner removal opening shaped to accommodate at least a portion of a paddlewheel.

Abstract: In a method or device for dosing toner material in an electrophotographic printer or copier, toner material is introduced into at least one bucket chamber rotatably arranged in an opening at a bottom of a toner reservoir. The bucket chamber has a paddle wheel which seals the opening of the toner reservoir. As the paddlewheel rotates, toner material in the bucket chamber is conveyed into a region. The toner material conveyed from the paddlewheel is further conveyed with a screw conveyor. Also a toner reservoir is provided having a toner removal opening shaped to accommodate at least a portion of a paddlewheel.

Abstract: In a method and device to separate toner material and air from a toner material-air mixture, and first operating phase at toner material-air mixture is supplied to a filter so that air flows through the filter in a first direction. In a second operating phase, the flow of air through the filter in a first direction is interrupted such that toner material deposited on the filter is loosened. In a second operating phase, air flows through the filter in a direction approximately opposite to the first direction. Also in a method device for dosing toner material in an electrophotographic printer or copier, toner material is introduced into at least one bucket chamber rotatably arranged in an opening at a bottom of a toner reservoir. The bucket chamber has a paddle wheel which seals the opening of the toner reservoir. As the paddlewheel rotates, toner material in the bucket chamber is conveyed into a region. The toner material conveyed from the paddlewheel is further conveyed with a screw conveyor.

Abstract: In order to replace out-of-date flowing medium in a system, where the medium has a component which ages, out-of-date flowing medium is removed and a quantity of fresh flowing medium or a fresh component are added while maintaining a given level of the flowing medium.

Abstract: In order to replace out-of-date flowing medium in a system, where the medium comprises a component which ages, out-of-date flowing medium is removed and a quantity of fresh flowing medium or a fresh component are added while maintaining a given level of the flowing medium.

Abstract: In order to replace out-of date flowing medium (16) in a system, comprising a component which ages, a defined amount of out-of-date flowing medium (16) is removed and the same amount of fresh flowing medium or fresh components (14) added and a given level (17?) of the flowing medium maintained.

Abstract: In a method and device to separate toner material and air from a toner material-air mixture, and first operating phase at toner material-air mixture is supplied to a filter so that air flows through the filter in a first direction. In a second operating phase, the flow of air through the filter in a first direction is interrupted such that toner material deposited on the filter is loosened. In a second operating phase, air flows through the filter in a direction approximately opposite to the first direction. Also in a method device for dosing toner material in an electrophotographic printer or copier, toner material is introduced into at least one bucket chamber rotatably arranged in an opening at a bottom of a toner reservoir. The bucket chamber has a paddle wheel which seals the opening of the toner reservoir. As the paddlewheel rotates, toner material in the bucket chamber is conveyed into a region. The toner material conveyed from the paddlewheel is further conveyed with a screw conveyor.

Abstract: A method of conveying toner material from a refill container is provided, wherein a refill container having an opening for the discharge of toner material is arranged in a receptacle device in a first substantially upright position. In this first position, the opening is closed by a closing device. The refill container is swiveled into the second position with bottom opening with the aid of the receptacle device. Toner material is taken from the refill container via a discharge opening provided in the closing device. Further, the invention relates to a device for conveying toner material and to an associated toner refill container.

Abstract: A method of conveying toner material from a refill container is provided, wherein a refill container having an opening for the discharge of toner material is arranged in a receptacle device in a first substantially upright position. In this first position, the opening is closed by a closing device. The refill container is swiveled into the second position with bottom opening with the aid of the receptacle device. Toner material is taken from the refill container via a discharge opening provided in the closing device. Further, the invention relates to a device for conveying toner material and to an associated toner refill container.

Abstract: An exposure means is provided between a development region and a carrier stripping drum that removes carrier particles, being provided inside the developer station of a non-mechanical fast data printer means. The exposure means illuminates and thereby discharges the highly charged and non-toner-covered regions of the surface of a charge image carrier. The adhesion of negative carrier particles of the developer mix to the non-exposed regions of the surface of the charge image carrier is thus reduced, so that they can be easily stripped from the surface of the charge image carrier by the following carrier stripping drum.

Abstract: An isorunning-counterrunning developer station comprises a plurality of isorunning developer drums moving isodirectionally with the charge image carrier and one counterruning developer drum. A developer mix is offered to the first isorunning developer drum via a paddle wheel proceeding from a supply chamber and is conducted from the first isorunning developer drum to the counterrunning developer drum via further isorunning developer drums. An exposure means composed of a transparent protective tube having a LED strip contained therein is provided above the developer drum, this exposure means being in turn followed by a carrier stripper drum.

Abstract: In a developer station for an electrophotographic printing or copying machine, there is provided apparatus which serves to assure a uniform layer thickness and density of developer mix to be conducted by the developer roller to the inking gap with a charge image carrier. This apparatus comprises a stripping roller which is mounted for rotation in the same direction as the developing roller and is arranged adjacent to the developing roller for defining therebetween a nip area through which developer mix must pass in route to the inking gap. The stripping roller serves to define an even level thickness for the developer mix being conducted to the inking gap by stripping away an upper portion of the developer mix layer for return to the main body of developer mix disposed in the lower region of the developer station. A guide plate is disposed beneath the striping roller about the lower end of the developer roller for defining a gap opening between its lead edge and the stripping roller.

Abstract: In a developer station for an electrophotographic printing or copying machine, there is provided apparatus which serves to effectively prevent toner dust emergence from the lower region of the developer station which could cause undesirable inking of background areas on the charge image carrier passing through the developer station. This apparatus comprises a generally laterally extending guide plate assembly disposed adjacent the open upper end of the developer station and extending between the magnetic drum or developing roller and an adjacent station sidewall.

Abstract: In a developer station for an electrophotographic printing or copying machine, there is provided apparatus which affords effective intermixing of carrier and toner particles in the developer mix and which enables the developer mix to be removed from the station prior to replacement in an automatic and simplified fashion. Transport and developer rollers are mounted in the station for conducting developer mix from a supply chamber to communication with a charge image carrier. A pair of rotary screws are disposed in the station on one side of the rollers with conveyance directions opposite to one another for conducting developer mix back and forth through the station enabling fresh toner to blend into the developer mix and maintaining uniform mixing of toner and carrier particles of the mix.

Abstract: In a copying apparatus or printing apparatus, charge images of characters to be printed are produced on a band-shaped intermediate carrier having a photoelectric layer, for example. The characters are developed with toner and are subsequently transferred to a recording carrier, for example, paper. A high percentage of the toner, situated on the intermediate carrier, is thereby to be transferred to the recording carrier. Mechanical apparatus is provided by which the intermediate carrier having the side provided with toner is brought into contact with the recording carrier during the transfer process. The intermediate carrier consists of a material of such elasticity that the area, provided therefor, can come temporarily to a stop during the transfer process. The mechanical apparatus can comprise a stationary strip which is arranged on the one side of the intermediate carrier and a movable bar arranged on the other side of the intermediate carrier.