Browse Prior Art Database

REDUCTION OF TONER DISTURBANCES BY THE USE OF SODIUM SULFATE

IP.com Disclosure Number: IPCOM000023346D
Original Publication Date: 1977-Jun-30
Included in the Prior Art Database: 2004-Mar-30
Document File: 2 page(s) / 280K

Publishing Venue

Xerox Disclosure Journal

Abstract

Disclosed is an improvement in the method of electrostato-graphic reproduction in which a latent electrostatic image is formed on a photoconductive surface, developed by the applica-tion of particulate toner and a copy made by transferring the toner from the photoreceptor to paper with subsequent thermal fusing of the toner to form a permanent copy. The improvement involves using paper which has on its surface a surface sizing composition comprising a binder, a water soluble hydrated sulfate salt in an amount of from about 0,8 to 2 weight percent of the paper and a monovalent chloride salt in an amount of from about 0.1 to about 0.4 weight percent of the paper with the paper being further defined in that the ratio of sulfate ion to chloride ion is from about 2:1 to 5:1 and the resulting su-ace resistiv-yof the taper is in the range of from about 10 to about 10 ohms/cm at 5 percent moisture content.

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XEROX DISCLOSURE JOURNAL

REDUCTION OF TONER DISTURBANCES Proposed Classification
BY THE USE OF SODIUM SULFATE U.S. Cl. 96/1.5
Charles J. Green, Jr. Int. Cl. G03g 5/04
Milan Zeman

Disclosed is an improvement in the method of electrostato~
graphic reproduction in which a latent electrostatic image is
formed on a photoconductive surface, developed by the applica~
tion of particulate toner and a copy made by transferring the
toner from the photoreceptor to paper with subsequent thermal
fusing of the toner to form a permanent copy. The improvement
involves using paper which has on its surface a surface sizing
composition comprising a binder, a water soluble hydrated
sulfate salt in an amount of from about 0,8 to 2 weight percent
of the paper and a monovalent chloride salt in an amount of
from about 0.1 to about 0.4 weight percent of the paper with
the paper being further defined in that the ratio of sulfate
ion to chloride ion is from about 2:1 to 5:1 and the resulting
su~ace resistiv~yof the taper is in the range of from about
10 to about 10 ohms/cm at 5 percent moisture content.

Use of this type of paper reduces the problem known as toner
disturbances especially when it is imaged in the duplex mode.

Volume 2 Number 3 May/June 1977 13

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I

                 XEROX DISCLOSURE JOURNAL
14 Volume 2 Number 3 May/June 1977

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