Liquid electrophotographic printing
AssigneeHP Indigo B.V.
InventorsAsaf Anufa, Ilan Romem
Life of this patent
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Abstract
An example apparatus is provided in accordance with the present disclosure, which may be used for example for liquid electrophotographic printing. The example apparatus includes a photo imaging plate to receive a liquid colorant image, the liquid colorant including a carrier fluid, and to transfer the image to a support, and a rotatable roller to remove carrier fluid from the photo imaging plate and increase the density of solids in the liquid colorant on at least a region of the photo imaging plate, prior to the liquid image being transferred.
Claims18
A liquid electrophotographic printing apparatus comprising:
- a photo imaging plate to receive a liquid colorant image, the liquid colorant comprising a carrier fluid;
- an intermediate transfer member to contact the photo imaging plate to receive the liquid colorant image therefrom;
- and
- a rotatable roller to remove carrier fluid from the photo imaging plate and increase the density of solids in the liquid colorant on at least a region of the photo imaging plate, prior to the liquid colorant image being transferred to the intermediate transfer member, wherein the roller has an electric charge of the same sign as the charge of colorant particles of the liquid colorant on the photo imaging plate.
A liquid electrophotographic printing apparatus comprising:
- a photo imaging plate to receive a liquid colorant image, the liquid colorant comprising a carrier fluid;
- an intermediate transfer member to contact the photo imaging plate to receive the liquid colorant image therefrom;
- and
- a rotatable roller to remove carrier fluid from the photo imaging plate and increase the density of solids in the liquid colorant on at least a region of the photo imaging plate, prior to the liquid colorant image being transferred to the intermediate transfer member, wherein the roller has a negative electric charge.
A liquid electrophotographic printing apparatus comprising:
- a photo imaging plate to receive a liquid colorant image, the liquid colorant comprising colorant particles in a carrier fluid, and to transfer the liquid colorant image to a support;
- and
- a rotatable roller to remove a portion of the carrier fluid and increase a density of colorant particles in the liquid colorant on at least a region of the photo imaging plate, prior to the liquid colorant image being transferred therefrom, the roller to apply an electric charge to repel colorant particles on an image region of the photo imaging plate.
A method for liquid electrophotographic printing comprising:
- forming an image on a photo imaging plate with liquid colorant comprising a carrier fluid;
- and
- removing, using a roller, a portion of the carrier fluid from the photo imaging plate while increasing a density of solids in the liquid colorant on an image region of the photo imaging plate, before transferring the image to an intermediate transfer member, the roller applying an electric charge to repel colorant particles on the image region of the photo imaging plate.
Dependencies are inferred from the claim text.