Method and apparatus for transferring and fixing powder images

Details Method and apparatus for transferring and fixing powder images Method and apparatus for transferring and fixing powder images

1982-08-11

1984-03-06

Moses, Richard L.

Photocopying

Including fiber optics

355 3FU, 355 77, 430126, G03G 1516, G03G 1520

Patent

active

044350678

ABSTRACT:
Powder images are transferred and fixed onto receiving supports of absorbent material such as paper so as to form copies of fine quality without need for heating or for applying solvent vapors to make the images sticky, by forming each powder image of water-absorbent powder particles that soften on absorbing water, transporting the powder image on a resiliently deformable, hydrophobic support surface to a transfer zone for transfer under pressure onto the receiving material, and in a treatment zone spaced ahead of the transfer zone covering the hydrophobic support surface and the powder image with water and directly afterward squeegeeing water from the wetted image and support surface.

REFERENCES:
patent: 2990278 (1961-06-01), Carlson
patent: 3013878 (1961-12-01), Dessauer
patent: 3318212 (1967-05-01), Rubin
patent: 3820985 (1974-06-01), Gaynor et al.
patent: 3893761 (1975-07-01), Buchan et al.
patent: 3923392 (1975-12-01), Buchan et al.
patent: 3947113 (1976-03-01), Buchan et al.
patent: 3961951 (1976-06-01), Mayer et al.

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