Browse Prior Art Database

Magnetic Brush Developer

IP.com Disclosure Number: IPCOM000035060D
Original Publication Date: 1989-May-01
Included in the Prior Art Database: 2005-Jan-28
Document File: 2 page(s) / 54K

Publishing Venue

IBM

Related People

Mares, FR: AUTHOR [+2]

Abstract

This magnetic brush developer includes a housing which has locating surfaces thereon. These surfaces are used to accurately locate the developer's magnetic rolls relative to the moving photoconductor whose latent image is to be developed. The magnetic brush developer is manufactured as two subassemblies: a housing subassembly and a roll subassembly. When these two subassemblies are coupled together, to form the completed developer, the magnetic rolls are accurately located relative the developer's housing. Subsequently, if and when it becomes necessary to remove the magnetic roll subassembly, during repair of the developer, for example, this removal is easily accomplished, and when the roll subassembly is replaced, it is again accurately located on the housing.

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Magnetic Brush Developer

This magnetic brush developer includes a housing which has locating surfaces thereon. These surfaces are used to accurately locate the developer's magnetic rolls relative to the moving photoconductor whose latent image is to be developed. The magnetic brush developer is manufactured as two subassemblies: a housing subassembly and a roll subassembly. When these two subassemblies are coupled together, to form the completed developer, the magnetic rolls are accurately located relative the developer's housing. Subsequently, if and when it becomes necessary to remove the magnetic roll subassembly, during repair of the developer, for example, this removal is easily accomplished, and when the roll subassembly is replaced, it is again accurately located on the housing. The figure shows a partial view of the two external metal side plates 10 and 11 of the developer housing. These side plates are spaced parallel to each other, and carry external locating surfaces (not shown) which are used to locate the developer housing accurately within the xerographic device. These two plates also support a number of conventional developer parts (not shown), such as one or more augers, a magnetic conveyor roll, a toner replenisher unit and external walls which form a sump containing the developer's toner/carrier mix. Each of the side plates includes locating notches 12 and 13 for the roll subassembly. These locating notches are accurately located relative the ho...