Browse Prior Art Database

Photoconductor Erase

IP.com Disclosure Number: IPCOM000086624D
Original Publication Date: 1976-Oct-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 53K

Publishing Venue

IBM

Related People

Smart, JW: AUTHOR

Abstract

In a drum-type xerographic apparatus, as partially disclosed in Fig. 1, it is necessary to erase the annular unused photoconductor border at each end of the drum, prior to the passage of the photoconductor through the developer. In practice, lamps direct electromagnetic energy to the photoconductor to discharge it. These lamps must be accurately spaced relative to the drum, both axially and radially.

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Photoconductor Erase

In a drum-type xerographic apparatus, as partially disclosed in Fig. 1, it is necessary to erase the annular unused photoconductor border at each end of the drum, prior to the passage of the photoconductor through the developer. In practice, lamps direct electromagnetic energy to the photoconductor to discharge it. These lamps must be accurately spaced relative to the drum, both axially and radially.

Fig. 2 shows this lamp assembly, wherein housings 10 and 11 contain lamps to illuminate opposite ends of the drum through slots 12 and 13, respectively. Bar 14 is mounted to the apparatus frame. Housing 11 is mounted to bar 14 and is adjustable radially by means of slots 15 and 16. The axial position of housing 11 is established, without drum removal, by movement of bar 14, as facilitated by slots 17 and 18. The position of housing 11 is now accurately established. Housing 10 is mounted to bar 19, which, in turn, is mounted to bar 14. Housing 10 is adjustable, both axially and radially, without drum removal, by associated slots 20, 22 and 21, 23. The position of housing 10 is thereby accurately established.

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