Print head arrangement and method of depositing a substance
AssigneeXennia Holland B.V.
InventorsGerrit KOELE, Alan HUDD
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Abstract
A system for depositing a substance onto a substrate comprises continuously transporting the substrate in a transport direction while traversing a deposition arrangement across the substrate to deposit the substance in a number of swathes. During such movement the positions of the deposition arrangement and the substrate are controlled with respect to one another such that the swathes complement one another to provide substantially uniform coverage of the substrate. As a result of the defined arrangement, improved substrate speeds can be achieved since there is no need for the substrate to stop at each traverse.
Claims18
A printing arrangement, comprising:
- a substrate transport device for continuously transporting a supply of substrate in a transport direction;
- a deposition arrangement arranged to traverse across the substrate for deposition of a substance in a swathe;
- and
- a control arrangement for synchronising a traverse speed or position of the deposition arrangement to a transport speed or position of the substrate to ensure substantially uniform coverage of the substrate by the substance.
A continuous substrate having deposited thereon a substance, the substance being deposited as individual droplets, sequentially arranged in a plurality of diagonal swathes across the substrate, each swathe being aligned with an adjacent swathe to provide a substantially uniform coverage of the substrate.
A print carriage for depositing diagonal swathes onto a moving substrate, the carriage having an axis for alignment with a movement direction of the substrate and comprising a row of print heads, each print head comprising a line of nozzles defining a swathe width, the nozzles being aligned along the axis and aligned with the nozzles of the other print heads in the row, each head being spaced from the next by a distance in the transport direction corresponding to an increment of the swathe width.
Dependencies are inferred from the claim text.