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US 10,591,840 B2Granted
Liquid electrophotographic inks
AssigneeHP Indigo B.V.
InventorsMichael Kokotov, Gregory Katz, Yaron Grinwald, Pavel Sandik
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Abstract
A liquid electrophotographic (LEP) ink can include a liquid ink vehicle, a conductive toner including a conductive pigment and a polymeric binder, and a charge director. The liquid electrophotographic ink can have a conductivity of from 150 to 2000 picoSiemens.
Claims12
A liquid electrophotographic ink, comprising:
- a liquid ink vehicle;
- a conductive toner, said conductive toner including a conductive pigment and a polymeric binder;
- and
- a charge director,
- wherein the charge director and the conductive toner are present at a weight ratio of from 0.1:1 to 2:1;
- and
- wherein the liquid electrophotographic ink has a conductance of from 150 to 2000 picoSiemiens.
4 more elements
Dependencies are inferred from the claim text.