Carrier evaporators for liquid electrophotography printing
AssigneeHP Indigo B.V.
InventorsMark Sandler, Peter Nedelin
Life of this patent
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Abstract
Aspects presented herein are directed towards a carrier evaporator for a Liquid Electrophotography Printing (LEP) system. In an example, the carrier evaporator provides a hot air supply to absorb an evaporated carrier liquid resulting in first air flow comprising a carrier vapour, an evacuator to evacuate at least a portion of the carrier vapour, a heat exchanger to decrease a temperature of the remaining carrier vapour thereby transforming the first air flow to a second airflow comprising carrier particles, and a filter to remove the carrier particles from the second air flow.
Claims14
A carrier evaporator for a Liquid Electrophotography Printing printing system, the carrier evaporator comprising:
- a heater to provide a hot air supply at a flow rate of at most 8 L/s to absorb an evaporated carrier liquid resulting in first air flow comprising a carrier vapour, wherein the heater provides the hot air supply at a temperature of at least 120° C.;
- an evacuator to evacuate at least a portion of the carrier vapour;
- a heat exchanger to decrease a temperature of the remaining carrier vapour thereby transforming the first air flow to a second airflow comprising carrier particles;
- and
- a filter to remove the carrier particles from the second air flow.
A Liquid Electrophotography Printing system comprising a carrier evaporator, the evaporator comprising:
- a heater to provide a hot air supply at a flow rate of at most 8 L/s to absorb an evaporated carrier liquid resulting in first air flow comprising a carrier vapour, wherein the heater provides the hot air supply at a temperature of at least 120° C.;
- an evacuator to evacuate at least a portion of the carrier vapour;
- a heat exchanger to decrease a temperature of the remaining carrier vapour thereby transforming the first air flow to a second airflow comprising carrier particles;
- and
- a filter to remove the carrier particles from the second air flow.
A method for a Liquid Electrophotography Printing system having an intermediate transfer member, the method comprising:
- blowing air having a temperature of at least 120° C. on to the intermediate transfer member at a flow rate less than or equal to 8 L/s;
- evacuating air away from the intermediate transfer member;
- cooling the evacuated air;
- and
- filtering the cooled air.
Dependencies are inferred from the claim text.