Ink jet printer with nozzle arrays that are moveable with respect to each other
AssigneeAgfa-Gevaert
InventorsBart Verhoest, Dirk De Ruijter, Hilbrand Van den Wyngaert, Bart Verlinden
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Abstract
An ink jet printer including a first and a second nozzle array, arranged one after another in the printing direction, wherein the second nozzle array is movably arranged in the printer for being displaced so that the number of nozzles in the second nozzle array experience a displacement having a component in a direction orthogonal to the printing direction.
Claims20
An ink jet printer having a printing direction, the printer comprising:
- a first nozzle array having a length L and a number N of nozzles, positioned so that said length L makes an angle α with said printing direction wherein 20° ≦α≦160°;
- a second nozzle array having a length L′ and a number N′ of nozzles, positioned so that said length L′ makes an angle α′ with said printing direction wherein 20°≦α≦160°;
- wherein said first and said second nozzle arrays are arranged one after another in said printing direction;
- and
- wherein said second nozzle array is movably arranged in said printer for being displaced so that said number N′ of nozzles experience a linear displacement having an equal displacement component in a direction orthogonal to said printing direction.
An ink jet printer having a printing direction, the printer comprising:
- a first page wide printhead assembly having a length L and a number N of nozzles, positioned so that said length L makes an angle α with said printing direction, wherein 20°≦α≦160°;
- a second page wide printhead assembly having a length L′ and a number N′ of nozzles, positioned so that said length L′ makes an angle α′ with said printing direction, wherein 20°≦α≦160°;
- wherein said first and said second page wide printhead assemblies are arranged one after another in said printing direction;
- and
- wherein said second page wide printhead assembly is movably arranged in said printer for being displaced so that said number N′ of nozzles experience a linear displacement having a an equal displacement component in a direction orthogonal to said printing direction.
An ink jet printer for printing on a receiving substrate moving along a receiving substrate path in a printing direction, the printer comprising:
- a first page wide printhead assembly having a first length and a first nozzle pitch, wherein said first page wide printhead assembly is positioned at a first ink-throwing distance from said receiving substrate path and with said first length along a first direction orthogonal to said printing direction;
- a second page wide printhead assembly having a second length equal to said first length and a second nozzle pitch equal to said first nozzle pitch, wherein said second page wide printhead assembly is positioned at a second ink-throwing distance from said receiving substrate path and with said second length along said first direction orthogonal to said printing direction;
- wherein said first page wide printhead assembly is movably arranged in said printer for being displaced along said first direction orthogonal to said printing direction over a first distance of at least half of said first nozzle pitch;
- and
- wherein said second page wide printhead assembly is movably arranged in said printer for being displaced along said first direction orthogonal to said printing direction over a second distance of at least half of said first nozzle pitch.
Dependencies are inferred from the claim text.