Appeal No. 95-3988
Application 07/986,316
page 2). Thus, claims 1 through 14, 17, 18, 20, 25 through 42, 44 through 48, 79 through 83 and 87
through 90 are before us for consideration on appeal. Claims 19, 21 through 24, 43 and 61 are also of
record and have been held to be allowed by the examiner.
Claims 1 and 79 are illustrative of the claims on appeal:
1. A process for forming images which comprises (a) generating an electrostatic latent image;
(b) contacting the latent image with a developer comprising a colorant and a substantial amount of a
vehicle with a melting point of at least about 25EC, said developer having a melting point of at least
about 25EC, said contact occurring while the developer is maintained at a temperature at or above its
melting point, said developer having a viscosity of no more than about 500 centipoise and a resistivity of
no less than about 10 ohm-cm at the temperature maintained while the developer is in contact with the8
latent image; and (c) cooling the developed image to a temperature below its melting point subsequent
to development, wherein excess developer is removed from the developed image subsequent to
development, said removal occurring at a temperature above the melting point of the developer.
79. A process for forming images which comprises (a) generating an electrostatic latent image;
(b) contacting the latent image with a developer consisting essentially of a colorant, an optional charge
control additive, and a substantial amount of a vehicle with a melting point of at least about 25EC, said
vehicle consisting essentially of a mixture of a liquid hydrocarbon and a metal soap which is insoluble in
the liquid hydrocarbon at a temperature of about 25EC or less, said developer having a melting point of
at least about 25EC, said contact occurring while the developer is maintained at a temperature at or
above its melting point, said developer having a viscosity of no more than about 500 centipoise and a
resistivity of no less than about 10 ohm-cm at the temperature maintained while the developer is in8
contact with the latent image; and (c) cooling the developed image to a temperature below its melting
point subsequent to development.
The appealed claims as represented by claims 1 and 79 are drawn to a process for forming2
images wherein an electrostatic latent image is developed by contact with a developer having a melting
point of at least about 25EC, while the developer is maintained at a temperature at or above its melting
point, subsequent to which the developed image is then cooled to a temperature below the melting point
of the developer. In claim 1, the vehicle has a melting point of at least about 25EC. In claim 79, the
vehicle also has a melting point of at least about 25EC and consists essentially of a mixture of a liquid
2Appellants state in their brief (pages 4-5) that the appealed claims 79 to 83, claims 84 to 86 and each
of claims 87, 88, 89 and 90 are separately discussed from appealed claims 1 through 14, 17, 18, 20,
25 through 42, 44 through 48. Thus, we decide this appeal based on appealed claims 1, 79, 84, 87,
88, 89 and 90. 37 CFR § 1.192(c)(5) and (6)(1993).
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Last modified: November 3, 2007