Apparatuses and processes for the production and repair of color

Incremental printing of symbolic information – Ink jet

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B41J 201

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active

058477209

ABSTRACT:
An apparatus for the production and repair of color filters from a substrate on which is deposited a regular network of color blocks. The apparatus includes a very stable Table 23 supporting the substrate and a printing head 25 using a high resolution, continuous ink jet with one or more nozzles supplied by an ink circuit. A mechanical motor driven device 28 provides for the relative displacement of the substrate 24 with respect to the printing head 25 and a measuring device 300 measures the position of the Table 23 by laser interferometry or by optical encoding. Ink positioning system 34 positions ink droplets using microscopic optics and a system inspects and controls the complete apparatus.

REFERENCES:
patent: 4620196 (1986-10-01), Hertz et al.
patent: 4901088 (1990-02-01), Hertz et al.

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