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SCREENED TRANSFER ROLL

IP.com Disclosure Number: IPCOM000023137D
Original Publication Date: 1976-Oct-31
Included in the Prior Art Database: 2004-Mar-27
Document File: 2 page(s) / 222K

Publishing Venue

Xerox Disclosure Journal

Abstract

Transfer roll 10 is electrically biased to effect the trans~ fer of a toner powder image from photoconductive drum 12 to copy sheet 14. Hollow characteris, i,e~, toner powder images devoid of toner particles in the central region thereof, are frequently formed by compactation of toner leading to large adhesion forces at the center of line images and reduction of toner charged lending to a less sufficient transfer, This may be minimized by employing a transfer roll 10 having a plurality of dots or protruber~ ances 16 on the surface thereon. Dot 16 reduces the high compactation forces to reduce toner particle deletion and minimize hollow characters, In lieu of dots, a plurality of spaced raised rigids may be formed on transfer roll 10,

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XEROX DISCLOSURE JOURNAL

SCREENED TRANSFER ROLL
K. Singleton
C. Thomas
W. Snyder

Proposed tJ.S~ Cl.
mt. Cl,

Classification
427/146

E41m 3/12

Transfer roll 10 is electrically biased to effect the trans~
fer of a toner powder image from photoconductive drum 12 to
copy sheet 14. Hollow characteris, i,e~, toner powder
images devoid of toner particles in the central region
thereof, are frequently formed by compactation of toner
leading to large adhesion forces at the center of line
images and reduction of toner charged lending to a less sufficient transfer, This may be minimized by employing a transfer roll 10 having a plurality of dots or protruber~
ances 16 on the surface thereon. Dot 16 reduces the high
compactation forces to reduce toner particle deletion and
minimize hollow characters, In lieu of dots, a plurality
of spaced raised rigids may be formed on transfer roll 10,

/2

/0

Volume 1 Numbers 9/10 September/October 1976 75

[This page contains 1 picture or other non-text object]

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[This page contains 1 picture or other non-text object]