Browse Prior Art Database

Erase Lamp Window

IP.com Disclosure Number: IPCOM000087779D
Original Publication Date: 1977-Mar-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 29K

Publishing Venue

IBM

Related People

Dean, HB: AUTHOR [+2]

Abstract

In the erase lamp structure shown, the erase lamp 10 is mounted to produce light emission through an opening 12 to discharge the charge remaining on an electrophotographic surface. Due to the contamination present, a window 11 (left figure) is provided over the opening 12 to keep lamp 10 clean to prevent the light emission reaching the photoconductor surface from dropping to insignificant levels. However, the flat window 11 accumulates contamination over a period of time and cuts down the amount of light reaching the photoconductor surface.

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Erase Lamp Window

In the erase lamp structure shown, the erase lamp 10 is mounted to produce light emission through an opening 12 to discharge the charge remaining on an electrophotographic surface. Due to the contamination present, a window 11 (left figure) is provided over the opening 12 to keep lamp 10 clean to prevent the light emission reaching the photoconductor surface from dropping to insignificant levels. However, the flat window 11 accumulates contamination over a period of time and cuts down the amount of light reaching the photoconductor surface.

The window 14 (right figure) comprises a cylindrical shape so that a greater area is present for the distribution of the contamination material. In addition, a cylindrical brush can be used to periodically clean the contamination from the window 14, thereby maintaining the emission of erase lamp 10 in an acceptable range for an extended period of time.

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