Developer material crossmixing apparatus
First Claim
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1. An apparatus for developing a latent image recorded on a member with developer material comprising at least carrier granules and toner particles, including:
- a housing defining a chamber storing a supply of developer material therein;
means, disposed, at least partially in the chamber of said housing, for advancing developer material closely adjacent to the latent image so that the latent image attracts toner particles thereto forming a toner powder image on the member; and
an auger mounted rotatably in the chamber of said housing, said auger comprising a shaft, a plurality of sets of blades mounted spirally on said shaft and extending outwardly therefrom so as to transport developer material in an axial direction substantially parallel to the longitudinal axis of said shaft, and a plurality of paddles spaced from said shaft and extending in a direction substantially parallel to said shaft and having opposed ends mounted on adjacent blades of said set of blades with each set of blades having a paddle mounted thereon and adjacent sets of blades being spaced from one another to move the developer material in a radial direction substantially perpendicular to the axial direction of movement so as to improve the charge characteristics of the developer material.
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Abstract
An apparatus which mixes developer material in the chamber of a developer housing. An auger transports the developer material in an axial direction from one region of chamber to another region thereof. In addition, as the developer material is being advanced in the axial direction, it is being moved in a radial direction substantially perpendicular to the axial direction of movement. In this way, the charge characteristics of the developer material are provided.
46 Citations
1 Claim
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1. An apparatus for developing a latent image recorded on a member with developer material comprising at least carrier granules and toner particles, including:
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a housing defining a chamber storing a supply of developer material therein; means, disposed, at least partially in the chamber of said housing, for advancing developer material closely adjacent to the latent image so that the latent image attracts toner particles thereto forming a toner powder image on the member; and an auger mounted rotatably in the chamber of said housing, said auger comprising a shaft, a plurality of sets of blades mounted spirally on said shaft and extending outwardly therefrom so as to transport developer material in an axial direction substantially parallel to the longitudinal axis of said shaft, and a plurality of paddles spaced from said shaft and extending in a direction substantially parallel to said shaft and having opposed ends mounted on adjacent blades of said set of blades with each set of blades having a paddle mounted thereon and adjacent sets of blades being spaced from one another to move the developer material in a radial direction substantially perpendicular to the axial direction of movement so as to improve the charge characteristics of the developer material.
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Specification
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Current AssigneeXerox Corporation (Xerox Holdings Corp.)
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Original AssigneeXerox Corporation (Xerox Holdings Corp.)
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InventorsTanaka, Shuji
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Primary Examiner(s)Grimley, A. T.
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Assistant Examiner(s)Ramirez, Nestor R.
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Application NumberUS07/366,722Time in Patent Office558 DaysField of Search355/245, 355/251, 355/253, 118/653, 118/657, 118/658, 366/81, 366/319US Class Current399/256CPC Class CodesB01F 27/1143 screw-shaped, e.g. wormsG03G 15/0822 Arrangements for preparing,...
