Browse Prior Art Database

PRECISION WATER APPLICATION SYSTEM

IP.com Disclosure Number: IPCOM000023340D
Original Publication Date: 1977-Jun-30
Included in the Prior Art Database: 2004-Mar-30
Document File: 2 page(s) / 325K

Publishing Venue

Xerox Disclosure Journal

Abstract

Disclosed is an improvement in the reproduction of an original document by electrostatographic means in which a toner image is transferred from an electrostatographic plate to a paper sheet and fused into the sheet by the application of heat. The improvement comprises simultaneously contacting both sides of the paper sheet with water applicator rollers to uniformly replace the water lost by the sheet during the fusing opera-tion. After wetting the sheet, a toner image is transferred to the unimaged side thereof and fused into the paper. Moistening the paper after the first fusing operation allevi-ates the problems related to paper dehydration during the second imaging process.

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Page 1 of 2

~XEROX DISCLOSURE JOURNAL

PRECISION WATER APPLICATION
SYSTEM
Richard G. Weller

Proposed
U~S. Cl.

Into Cl,

Classification

355/3

G03g 15/00

/6

18

Volume 2 Number 3 May/June 1977 77

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

Page 2 of 2

PRECISION WATER APPLICATION SYSTEM (Cont~d)

Disclosed is an improvement in the reproduction of an original
document by electrostatographic means in which a toner image
is transferred from an electrostatographic plate to a paper
sheet and fused into the sheet by the application of heat. The
improvement comprises simultaneously contacting both sides of
the paper sheet with water applicator rollers to uniformly
replace the water lost by the sheet during the fusing opera-
tion. After wetting the sheet, a toner image is transferred
to the unimaged side thereof and fused into the paper.
Moistening the paper after the first fusing operation allevi-
ates the problems related to paper dehydration during the
second imaging process.

The method of practicing the present invention is illustrated
in Figure 1, In operation, liquid is picked up from troughs 10
and 12 by pick-up rollers 14 and 16. The pick-up rollers are
in operable contact with transfer rollers 18 and 20 and trans-
fer liquid thereto in operation. The moistened transfer
rollers transfer their liquid to applicator rollers 22 and 24
which in turn apply the liquid to the paper. The paper is
moistened uniformly and each side is wetted uniformly by this
technique. Typically, the applicator roller...