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Browse Prior Art Database

TACKY TONER TRANSFER METHOD

IP.com Disclosure Number: IPCOM000023652D
Original Publication Date: 1978-Aug-31
Included in the Prior Art Database: 2004-Mar-31
Document File: 2 page(s) / 191K

Publishing Venue

Xerox Disclosure Journal

Abstract

In an electrophotographic printing machine, a photoconductive surface is charged to a substantially uniform level. There-after, the original document being reproduced is illuminated and the light rays reflected therefrom selectively discharge the charge on the photoconductive surface recording an electrostatic latent image thereon. Conventionally, the electrostatic latent image is developed and transferred to a copy sheet. In systems of this type, the toner particles are dry and not tacky. Alternatively, an intermediate web of material may be interposed between the development system and the photoconductive surface. The toner particles may be developed on the intermediate web in image configuration rather than the photoconductive surface. The intermediate web is then heated and advanced into contact with the copy sheet. Preferably, the toner is heated to about 3400 F. Thereafter, the tacky toner is positioned in contact with the copy sheet and transferred thereto forming a copy of the original document on the copy sheet.

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Page 1 of 2

I

XEROX DISCLOSURE JOURNAL

TACKY TONER TRANSFER METHOD Proposed Classification
R.C. Vock U.S. Cl. 427/146
tnt. Cl. 841m 3/12

         In an electrophotographic printing machine, a photoconductive
surface is charged to a substantially uniform level. There-
after, the original document being reproduced is illuminated
and the light rays reflected therefrom selectively discharge
the charge on the photoconductive surface recording an
electrostatic latent image thereon. Conventionally, the
electrostatic latent image is developed and transferred to a
copy sheet. In systems of this type, the toner particles are
dry and not tacky. Alternatively, an intermediate web of
material may be interposed between the development system and
the photoconductive surface. The toner particles may be
developed on the intermediate web in image configuration
rather than the photoconductive surface. The intermediate web
is then heated and advanced into contact with the copy sheet.
Preferably, the toner is heated to about 3400 F. Thereafter,
the tacky toner is positioned in contact with the copy sheet
and transferred thereto forming a copy of the original
document on the copy sheet.

Volume 3 Number 4 July/August 1978 273

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