Abstract: A magnetic brush development station for a reproduction apparatus with a movable metering skive so as to enable such metering skive to control and prevent contamination at such metering skive. A developer roller is mounted within the housing for delivering developer material to a development zone, the developer roller including a core magnet inside a shell, the core magnet and the shell having relative rotation. A transport mechanism is provided for delivering developer material from the reservoir to the development roller. A metering skive is provided for establishing a developer material metering gap between the metering skive and the developer roller for controlling the quantity of developer material delivered from the reservoir portion of the housing to the development zone.

Abstract: A magnetic brush development station for a reproduction apparatus with a movable metering skive so as to enable such metering skive to control and prevent contamination at such metering skive. A developer roller is mounted within the housing for delivering developer material to a development zone, the developer roller including a core magnet inside a shell, the core magnet and the shell having relative rotation. A transport mechanism is provided for delivering developer material from the reservoir to the development roller. A metering skive is provided for establishing a developer material metering gap between the metering skive and the developer roller for controlling the quantity of developer material delivered from the reservoir portion of the housing to the development zone.

Abstract: A magnetic brush development station with a housing forming a reservoir for developer material has a plurality of augers located in the housing for mixing developer material. A drive for the plurality of augers includes an assembly having a body extending through the development station housing. A plurality of bearings are positioned in the body with a spacer between the plurality of bearings. A rotatable shaft is connected between the plurality of augers and an auger drive member. A seal for the rotatable shaft has a lip formed of a material which is able to stretch sufficiently to maintain sealing contact with the shaft while the shaft is being rotated by the auger drive member.

Abstract: A magnetic brush development station including a housing forming, at least in part, a reservoir for developer material. A development roller is mounted within the housing for delivering developer material from the reservoir to a development zone. A plurality of rotatable augers are located in the housing for mixing developer material within the reservoir, and are arranged substantially side-by-side with respective parallel longitudinal axes, the most outboard of the plurality of augers being positioned to be raised and toward the center with respect to the housing of the development station. Accordingly the overall width of the development station is reduced while maintaining centerline distances between each of the plurality of augers so that individual augers do not interfere with one another.

Abstract: A magnetic brush development station for a reproduction apparatus. The magnetic brush development station includes a housing forming, at least in part, a reservoir for developer material; a plurality of augers located in the housing for mixing developer material within the reservoir; a development roller mounted within the housing for delivering developer material from the reservoir to a development zone; and a pressure equalization seal associated with the housing. The pressure equalization seal is placed over a hole defined in the housing, the pressure equalization seal allowing air flow, caused by pressure differential between inside the housing and the exterior thereof, through the seal without carrying developer material dust out of the housing.

Abstract: A magnetic brush development station including a housing forming, at least in part, a reservoir for developer material. A plurality of augers are located in the housing for mixing developer material within the reservoirs. A development roller is mounted within the housing for delivering developer material from the reservoir to a development zone. A mechanism is provided for selectively readily replenishing and/or emptying at least one component of developer material with respect to the reservoir, the replenishing mechanism including a tube defining a series of ports, the series of ports being at a specific angle and of a size so as to allow an equal amount of material to pass through each of the ports, whereby marking particles exit from the ports and are substantially uniformly introduced into the reservoir of the housing.

Abstract: A magnetic brush development station including a housing forming, at least in part, a reservoir for developer material. A development roller is mounted within the housing for delivering developer material from the reservoir to a development zone. A plurality of rotatable augers are located in said housing for mixing developer material within the reservoir, and are arranged substantially side-by-side with respective parallel longitudinal axes, the most outboard of the plurality of augers being positioned to be raised and toward the center with respect to the housing of the development station. Accordingly the overall width of the development station is reduced while maintaining centerline distances between each of the plurality of augers so that individual augers do not interfere with one another.

Abstract: A magnetic brush development station includes, a housing forming a reservoir for developer materials. A plurality of augers are located in the housing for mixing developer material. A development roller is mounted within the housing for delivering developer material from the reservoir to a development zone. The development roller includes a core magnet inside a shell, having relative rotation. The core magnet extends less than the entire length of the development roller such that a developer nap on the shell does not extend to the respective ends. A metering skive controls the quantity of developer material delivered from the reservoir. A metering skive is positioned parallel to a longitudinal axis of the development roller at a location upstream in the direction of shell rotation prior to the development zone. A magnetic seal is located in association with the skive at each end to substantially prevent leakage of developer material.

Abstract: A magnetic brush development station includes a housing forming a reservoir for developer material. A development roller is mounted within said housing for delivering developer material from this reservoir to a development zone. A plurality of augers are located in the housing for mixing developer material. A drive for the plurality of augers extends through the housing and has a seal therefore, the drive includes an assembly having a body extending through the development station housing, a plurality of bearings positioned in the body with a spacer between the plurality of bearings, an auger drive member, and a seal for the drive surrounding a rotatable shaft connected between the plurality of augers and the auger drive member. The seal has a lip formed of a material which is able to stretch sufficiently to maintain sealing contact with the shaft while the shaft is being rotated by the auger drive member.

Abstract: A magnetic brush development station for a reproduction apparatus. The magnetic brush development station includes a housing forming, at least in part, a reservoir for developer material. The reservoir has a pressure equalization seal. A mechanism is associated with the housing for readily moving the housing relative to the reproduction apparatus. Another mechanism selectively readily replenishes and/or empties at least one component of developer material with respect to the reservoir. A plurality of augers are located in the housing for mixing developer material within the reservoir. A drive for the augers, extending through the housing, has a seal therefor. A development roller, mounted within the housing, delivers developer material from the reservoir to a development zone. The development roller includes a core magnet inside a shell such that the core magnet and the shell having relative rotation.

Abstract: A device for handling corona charger wires in order to facilitate the placement of wires within the housing of the corona charger. The corona wire handling device includes a substantially rectangular frame, the frame having opposed long side members and opposed short side members. The long side members of the rectangular frame are readily separable from the short side members thereof. A mechanism, associated with the rectangular frame, is provided for supporting an intermediate portion of at least one corona wire on the frame. Further, a mechanism is provided for controlling tension on the corona wire induced by the corona wire intermediate support mechanism.

Abstract: Image forming apparatus includes a developing device for developing electrostatic images with dry toner. The developing device has more than one developing unit supported on a carriage for movement through a development position. A unitary sump component defines the sump for each unit and includes a mixing device in each sump. The sump component is removable for replacement of developer. The sump component includes a shaft extending from the component which is engageable by a drive in the developing device.

Abstract: A development station for developing electrostatic images includes a housing which has a vertically oriented separating wall which divides the housing into first and second chambers. In assembly both chambers are open at the top permitting ready loading of one chamber with a mixture of toner and carrier and the other chamber with substantially toner. The separating wall includes an opening at the bottom for passage of toner into the chamber containing the mixture. A toner applicator is located at the top of the chamber containing the mixture and a cover is permanently affixed across the tops of the chambers, totally sealing the chambers except for an opening in the cover opposite the toner-applicator. Because of the design of the station, especially the chambers which are open at the top for easy loading of toner and carrier, the station can economically be made disposable.

Abstract: In an electrostatographic apparatus including a housing having a lower portion containing electrostatographic process stations and an upper portion connected thereto containing a dielectric member supported on a core, the upper housing portion is movable relative to the lower housing portion to a first (closed) position where the dielectric member is in operative relation to such electrostatographic process stations and a second (open) position wherein the dielectric member is remote from such electrostatographic process stations to enable ready access to such process stations. The dielectric member core is mounted in the upper housing portion for movement with the upper housing portion or movement relative thereto to a position intermediate the upper and lower housing portions when the upper portion is in its second position.

Abstract: A device for developing electrostatic images carried on a film belt in an apparatus receiving the developing device includes device location surfaces which seat on apparatus location surfaces in the apparatus to locate the device with respect to the apparatus. Film support surfaces on the device support the film belt a fixed spacing from a developer applicator. The film support surfaces are located within tight tolerances with respect to the surface of the applicator to provide accurate positioning of the applicator and film belt.

Abstract: A development station for a low cost copier or printer has a housing having walls that divide the housing into two separate chambers. The first chamber contains a developer mix including carrier particles and toner. The second chamber holds a supply of toner particles. The second chamber holds a single supply of fresh toner particles that are periodically metered to the first chamber. The second chamber is fully enclosed and sealed so that the supply of toner in the second chamber cannot be replenished. A plate in the second chamber rests on top of the toner supply and urges the toner downwardly in the chamber as the toner supply is delivered to the first chamber. When the toner supply is exhausted, the plate blocks the passageway for toner from the second chamber to the first chamber. Thus, if an opening is formed in the top of the second chamber and a new supply of toner is provided to the chamber through the opening, the plate prevents delivery of the new toner supply to the first chamber.

Abstract: A development station applies developer material to a latent image on a photoconductor of an electrographic apparatus. An applicator in the station receives developer material from a sump and provides it to the latent image, and excess developer material from the applicator travels along a skive and is returned to the sump. A developer mixer in the sump includes a plurality of blades which are driven about an axis to mix the developer material and supply such material to the applicator. One of the mixer blades is longer than the other blades and strikes the skive during rotation of the mixer to flex the skive and thus facilitates movement of any developer material on the skive toward the sump. The longer blade of the mixer also engages an arcuate surface of the sump during rotation of the blade to wipe developer material from that surface, and removes excess developer from part of the applicator.

Abstract: A guitar harness that stabilizes the guitar in any of a wide range of desired positions. While the player may raise the guitar neck when desired, the instrument is prevented from assuming a position with the neck lower than a preset angular position. The harness utilizes first and second strap segments, each of which has means at its respective ends for attachment to first and second anchor points on the instrument. The first strap segment passes from the first anchor point diagonally upwardly across the back of the player and over the player's shoulder to the second anchor point in the manner of a conventional guitar strap. The second strap segment extends from the first anchor point, across the player's stomach (between the stomach and the guitar body), around the player's back, and then across the player's chest to the second anchor point.