Liquid toner fusing/transfer system with a film-forming roller t

Details Liquid toner fusing/transfer system with a film-forming roller t Liquid toner fusing/transfer system with a film-forming roller t

1994-03-16

1995-05-30

Grimley, A. T.

Photocopying

Contact printing

Light boxes

118652, 355296, 430117, G03G 1510

Patent

active

054206758

ABSTRACT:
An electrostatic imaging system includes a photoconductor which carries an image defined by a liquid toner. The liquid toner comprises a pigment binder system in a paraffinic solvent blend carrier liquid, the liquid carrier exhibiting a relatively high flash point temperature. The imaging system further includes a heating roll, and a film forming roll positioned between the photoconductor and the heating roll. The film forming roll includes at least first and second superposed layers, the first layer comprised of a material that is carrier liquid phillic and which exhibits a dimensional thickness which enables substantially all carrier liquid entrained therein to reach the liquid's flashpoint temperature when under influence of the heating roll. The second layer is carrier liquid phobic and exhibits a resiliency that enables the first layer to compliantly mate with the photoconductor surface. A further transfer roll comprises an outer, liquid carrier phobic layer and an inner compliant layer for enabling indirect transfer of an image from the photoconductor to a media sheet.

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