The invention relates to an improved systems and methods for ink-jet printing
which result in images with increased permanence as measured by transfer of black
or color from the image when the image is subjected to mechanical and/or chemical
abrasion. The invention provides a fusible composition that may be combined with
any or all of the black or color inks used to create the image, or it may be used
as a colorless fluid applied during pre-, post-, or simultaneous ink-jet ink printing,
with the proviso that both the ink-jet ink and the fusible composition be mixed
in a liquid form for fusion. The permanence of images produced by the system can
be comparable to those produced by electrophotography.