Ink printing device for multi-colored printing of a recording medium
AssigneeSiemens Aktiengesellschaft
InventorJoachim Heinzl
Life of this patent
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Abstract
An ink printing device for multi-colored printing of a recording medium utilizes a single ink printing head having a plurality of printing jets arranged in a pattern on the printer head body. Printer jets are divided into groups vertically adjacent to one another having individual ink supplies with colors different from one another. In a line-wise printing operation, recording medium is indexed perpendicularly to the printing direction at the end of a printed line by a vertical distance which corresponds to printing width of each jet group. Operation of the printer head affords superimposed printing to effect secondary, composite colors or half-tone shaded patterns.
Claims11
An ink printing unit for multi-colored printing of a recording medium comprising a printer head with a plurality of groups of plural printing jets from which ink is ejected onto the recording medium, a plurality of ink reservoirs containing inks of different colors and means for fluidly connecting each of said ink reservoirs exclusively with a respective group of plural printing jets.
A method of providing multi-colored printing of a recording medium using a printer head with a plurality of printing jets from which ink is ejected onto the recording medium, said printing jets being arranged in a pattern on one surface of said printer head and divided into a plurality of groups of plural printing jets in a line with one another, a plurality of ink reservoirs containing inks of different colors, and flow means for exclusively supplying ink from each said ink reservoir to a respective printing jet group, said method comprising:
- printing the recording medium from all said printing jet groups simultaneously while moving said printer head in line-wise fashion across the recording medium,
- extending said line of jet groups perpendicular to the line of movement of said printer head,
- arranging each said printing jet group with a width in parallel with said group line between longitudinally spaced leading and trailing jet surfaces, all said group widths being equal,
- indexing the recording medium perpendicularly to the line of movement of said printer head by a length equal to the group width.
Dependencies are inferred from the claim text.