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Pressurized Corona Method for Transferring Developed Electrostatic Images

IP.com Disclosure Number: IPCOM000075064D
Original Publication Date: 1971-Jul-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 29K

Publishing Venue

IBM

Related People

Krause, KA: AUTHOR

Abstract

There is shown apparatus for transferring developed electrostatic images 10 from a photoconductor 12 to a copy paper sheet 14. A corona generating device 16 is mounted adjacent to the photoconductor surface. A high voltage potential from a supply 18 is applied between a conductive backing for photoconductor 12 and the corona generating wire 20. A source of pressurized air is applied to corona 16. Due to the substantial enclosure of the corona wire by conductive shield 22, the applied air pressure produces increased force on sheet 14 so that an increase in image toner transfer from photoconductor 12 to sheet 14 is accomplished. This increase not only produces a better image on sheet 14, but also reduces the work required at the cleaning station, not shown, to remove residual toner 24 from the surface of photoconductor 12.

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Pressurized Corona Method for Transferring Developed Electrostatic Images

There is shown apparatus for transferring developed electrostatic images 10 from a photoconductor 12 to a copy paper sheet 14. A corona generating device 16 is mounted adjacent to the photoconductor surface. A high voltage potential from a supply 18 is applied between a conductive backing for photoconductor 12 and the corona generating wire 20. A source of pressurized air is applied to corona 16. Due to the substantial enclosure of the corona wire by conductive shield 22, the applied air pressure produces increased force on sheet 14 so that an increase in image toner transfer from photoconductor 12 to sheet 14 is accomplished. This increase not only produces a better image on sheet 14, but also reduces the work required at the cleaning station, not shown, to remove residual toner 24 from the surface of photoconductor 12.

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